CN216033933U - Cam type height-adjustable seat base assembly - Google Patents

Abstract

A cam type height-adjustable seat base assembly comprises a lower base and an upper base which are oppositely arranged, wherein a height adjusting component is arranged between the lower base and the upper base; the height adjusting component comprises a rotating shaft which is rotatably connected with the upper base, a handle and at least one cam are fixedly mounted on the rotating shaft, and the cam is matched with at least one supporting block fixedly mounted on the lower base for use to adjust the height of the upper base. The height of the seat base can be adjusted, so that the seat base is matched with the height or driving habits of a driver, and the use effect and the application range are improved.

Description

Cam type height-adjustable seat base assembly

Technical Field

The utility model relates to the technical field of motor vehicle seat devices, in particular to a cam type height-adjustable seat base assembly.

Background

At present, the scientific and technological rapid development, the travelling comfort and the practicality of seat also receive more and more attention of user, especially in the agricultural machine field, because its operational environment is complicated, the uncertainty in work place, each seat all undertakes important effect in the complete machine, directly influences driver's experience effect.

Traditional agricultural machinery seat does not have the altitude mixture control function, leads to the driver can't adjust the height of seat according to self height or driving habit, has influenced driving experience and result of use.

Therefore, a cam-type height-adjustable seat base assembly is needed, which can adjust the height of the seat base to match the height or driving habit of the driver, and improve the use effect and the application range.

SUMMERY OF THE UTILITY MODEL

In view of the above, the technical problems to be solved by the present invention are: the cam type height-adjustable seat base assembly can adjust the height of the seat base, enables the seat base to be matched with the height or driving habits of a driver, and improves the using effect and the application range.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a cam type height-adjustable seat base assembly comprises a lower base and an upper base which are oppositely arranged, wherein a height adjusting component is arranged between the lower base and the upper base;

the height adjusting assembly comprises a rotating shaft which is rotatably connected with the upper base, a handle and at least one cam are fixedly mounted on the rotating shaft, and the cam is matched with at least one supporting block fixedly mounted on the lower base for use, so that the upper base is subjected to height adjustment.

Preferably, the cam comprises a wheel body fixedly connected with the rotating shaft, and a through hole for accommodating the rotating shaft is formed in the wheel body;

a plurality of protruding parts integrally formed with the wheel body are arranged on the outer wall of the wheel body in a protruding mode, and the distances from the plurality of protruding parts to the axis of the through hole are different;

the supporting block is concavely provided with a groove matched with the convex part for use.

Preferably, the positions and the number of the cams and the supporting blocks correspond to each other one by one, and the number of the cams and the supporting blocks is two;

the two supporting blocks are respectively and correspondingly arranged below the two cams.

Preferably, the rotating shaft penetrates through the inner part of the upper base; wherein

One end of the rotating shaft is rotatably connected with the inner wall of the upper base, and the other end of the rotating shaft is fixedly connected with the handle positioned outside the upper base.

Preferably, two X-shaped supports are further arranged between the lower base and the upper base, and the two X-shaped supports are symmetrically arranged on two sides of the rotating shaft.

Preferably, the two X-shaped brackets have the same structure and respectively comprise a first supporting arm and a second supporting arm which are hinged with each other; wherein

One end of the first support arm is rotatably connected with the lower base, and the other end of the first support arm is rotatably connected with the first pulley;

one end of the second supporting arm is rotatably connected with the upper base, and the other end of the second supporting arm is rotatably connected with the second pulley;

the lower base and the upper base are respectively provided with a slideway matched with the first pulley and the second pulley.

Preferably, a tension spring is detachably mounted between the lower base and the upper base.

After the technical scheme is adopted, the utility model has the beneficial effects that:

because the height adjusting component is arranged between the lower base and the upper base and comprises the rotating shaft, the rotating shaft is fixedly provided with the handle and the at least one cam, the handle can drive the cam to rotate through the rotating shaft, the cam is matched with the supporting block fixedly arranged on the lower base to adjust the height of the upper base, the height adjustment of the seat base assembly is realized, the current situation that the original base assembly cannot be used for adjusting the height is changed, and the use effect of a driver and the application range of the utility model are improved.

Specifically, in the utility model, the cam comprises a wheel body, the wheel body penetrates through the outer wall of the rotating shaft through the through hole and is fixedly connected with the outer wall of the rotating shaft, a plurality of protrusions are arranged on the wheel body in a protruding mode, the distances between the protrusions and the axes of the through hole are different, in the process that the rotating shaft drives the wheel body to rotate, the wheel body drives the protrusions to rotate together, the protrusions are matched with grooves in the supporting block and can be meshed with one another, the distances between the protrusions and the axes of the through hole are different, so that in the rotating process of the wheel body, the distances between the rotating shaft and the supporting block are different, the adjustment of the distance between the upper base and the lower base is realized, namely, the height of the upper base is changed, the cam is simple in structure and convenient to operate, and the use requirements of a driver are met.

According to the utility model, the two X-shaped supports are arranged and symmetrically arranged on two sides of the rotating shaft, so that the stability between the lower base and the upper base can be improved, meanwhile, one end of the first supporting arm is rotatably connected with the lower base, the other end of the first supporting arm is rotatably connected with the first pulley, one end of the second supporting arm is rotatably connected with the upper base, and the other end of the second supporting arm is rotatably connected with the second pulley, so that the realization of height adjustment is ensured on the basis of improving the stability, and the use effect is further improved.

According to the utility model, the tension spring is detachably arranged between the lower base and the upper base, and the tension of the tension spring can ensure that the bulge and the groove are reliably meshed together after the rotating shaft drives the cam to rotate for height adjustment, so that the direction of the cam is locked, the height is not changed any more, and the accuracy of height adjustment and the reliability of a driver during height adjustment are ensured.

In conclusion, the height of the seat base can be adjusted, so that the seat base is matched with the height or driving habits of a driver, and the using effect and the application range are improved.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 with the upper base removed;

FIG. 3 is a schematic view of the cam of FIG. 1;

FIG. 4 is a schematic view of the support block of FIG. 1;

FIG. 5 is a schematic structural view of the X-shaped stent of FIG. 1;

in the figure:

1. a lower base; 2. an upper base; 3. a rotating shaft; 4. a handle; 5. a cam; 51. a wheel body; 52. a through hole; 53. a boss portion; 6. a support block; 61. a groove; 7. an X-shaped bracket; 71. a first support arm; 72. a second support arm; 73. a first pulley; 74. a second pulley; 8. a slideway; 9. a tension spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1 and 2, the present invention comprises a lower base 1 and an upper base 2 which are oppositely arranged, and a height adjusting assembly is arranged between the lower base 1 and the upper base 2.

The height adjusting component comprises a rotating shaft 3 which is rotatably connected with the upper base 2, a handle 4 and at least one cam 5 are fixedly mounted on the rotating shaft 3, and the cam 5 is matched with at least one supporting block 6 fixedly mounted on the lower base 1 for use to adjust the height of the upper base 2.

The cams 5 correspond to the supporting blocks 6 in position and number one by one, preferably, two supporting blocks 6 are provided, and the two supporting blocks 6 are respectively and correspondingly arranged below the two cams 5.

When the seat base assembly is used, the handle 4 can drive the cam 5 to rotate through the rotating shaft 3, the cam 5 is matched with the supporting block 6 fixedly arranged on the lower base 1, the height of the upper base 2 is adjusted, the height of the seat base assembly is adjusted, the use situation that the height of the original base assembly cannot be adjusted is changed, and the use effect of a driver and the application range of the seat base assembly are improved.

As shown in fig. 2 to 4, the cam 5 includes a wheel body 51 fixedly connected to the rotating shaft 3, and a through hole 52 is formed in the wheel body 51 for accommodating the rotating shaft 3.

A plurality of protrusions 53 integrally formed with the wheel body 51 are convexly arranged on the outer wall of the wheel body 51, the distances from the plurality of protrusions 53 to the axes of the through holes 52 are different, and grooves 61 matched with the protrusions 53 for use are concavely arranged on the supporting block 6. Preferably, the number of the protruding portions 53 is four, and the distances from the four protruding portions 53 to the axis of the through hole 52 are all different, that is, the distances from the four protruding portions 53 to the grooves 61 are all different.

The rotating shaft 3 penetrates through the inner part of the upper base 2; wherein rotate between the one end of pivot 3 and the inner wall of last base 2 and be connected, the other end of pivot 3 with be located the outside handle 4 fixed connection of base 2, handle 4 sets up in the outside of last base 2, the driver of being convenient for rotates pivot 3 through handle 4, has improved the result of use.

As shown in fig. 1 and 5, two X-shaped brackets 7 are further disposed between the lower base 1 and the upper base 2, and the two X-shaped brackets 7 are symmetrically disposed on two sides of the rotating shaft 3.

The two X-shaped brackets 7 are identical in structure and each comprise a first supporting arm 71 and a second supporting arm 72 hinged to each other. Wherein

One end of the first supporting arm 71 is rotatably connected with the lower base 1, the other end of the first supporting arm 71 is rotatably connected with the first pulley 73, one end of the second supporting arm 72 is rotatably connected with the upper base 2, and the other end of the second supporting arm 72 is rotatably connected with the second pulley 74.

The lower base 1 and the upper base 2 are respectively provided with a slideway 8 matched with the first pulley 73 and the second pulley 74.

In the process of height adjustment through engagement of the protruding portion 53 and the groove 61, the first pulley 73 and the second pulley 74 can slide along the slideway 8, and meanwhile, one end of the first supporting arm 71 and one end of the second supporting arm 72 are respectively rotatably connected with the lower base 1 and the upper base 2, so that sliding among the first pulley 73, the second pulley 74 and the slideway 8 is facilitated, the requirement of height adjustment is met, and the using effect is further improved; meanwhile, the X-shaped support is arranged, so that the stability between the lower base 1 and the upper base 2 can be improved.

As shown in fig. 1 and 2, a tension spring 9 is detachably mounted between the lower base 1 and the upper base 2, and the tension of the tension spring 9 can ensure that the cam 5 is reliably engaged with the protrusion 53 after the rotating shaft 3 drives the cam 5 to rotate for height adjustment, so as to lock the direction of the cam 5, so that the height is not changed, and the accuracy of height adjustment and the reliability of the driver in height adjustment are ensured.

When the utility model is used, a driver rotates by holding the handle 4 to drive different protrusions 53 to be meshed with the grooves 61, so that the height of the upper base 2 is adjusted, and the use effect of the utility model and the driving effect of the driver are improved.

In conclusion, the height of the seat base can be adjusted, so that the seat base is matched with the height or driving habits of a driver, and the using effect and the application range are improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (7)

1. A cam type height-adjustable seat base assembly comprises a lower base and an upper base which are oppositely arranged, and is characterized in that a height adjusting component is arranged between the lower base and the upper base;

the height adjusting assembly comprises a rotating shaft which is rotatably connected with the upper base, a handle and at least one cam are fixedly mounted on the rotating shaft, and the cam is matched with at least one supporting block fixedly mounted on the lower base for use, so that the upper base is subjected to height adjustment.

2. The cam-type height-adjustable seat base assembly of claim 1, wherein the cam comprises a wheel body fixedly connected with the rotating shaft, and the wheel body is provided with a through hole for accommodating the rotating shaft;

a plurality of protruding parts integrally formed with the wheel body are arranged on the outer wall of the wheel body in a protruding mode, and the distances from the plurality of protruding parts to the axis of the through hole are different;

the supporting block is concavely provided with a groove matched with the convex part for use.

3. The cam-type height adjustable seat base assembly of claim 1 wherein said cams correspond one-to-one with the position, number, and both of said support blocks;

the two supporting blocks are respectively and correspondingly arranged below the two cams.

4. The cam height adjustable seat base assembly of claim 1 wherein said pivot shaft is disposed through an interior of said upper base; wherein

One end of the rotating shaft is rotatably connected with the inner wall of the upper base, and the other end of the rotating shaft is fixedly connected with the handle positioned outside the upper base.

5. The cam-type height adjustable seat base assembly of claim 1, wherein two X-shaped brackets are further disposed between the lower base and the upper base, and the two X-shaped brackets are symmetrically disposed on two sides of the rotation shaft.

6. The cam height adjustable seat base assembly of claim 5 wherein said X-bracket structures are identical and each include first and second support arms hingedly connected to one another; wherein

One end of the first support arm is rotatably connected with the lower base, and the other end of the first support arm is rotatably connected with the first pulley;

one end of the second supporting arm is rotatably connected with the upper base, and the other end of the second supporting arm is rotatably connected with the second pulley;

the lower base and the upper base are respectively provided with a slideway matched with the first pulley and the second pulley.

7. The cam-type height adjustable seat base assembly of claim 1 wherein a tension spring is removably mounted between the lower base and the upper base.

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