Anti-seismic armrest seat

Abstract

The anti-seismic handrail seat comprises a vertical pipe, a handrail base, a shock absorber and buffering sleeves, the upper end of the vertical pipe is rotationally connected with the upper end of the shock absorber, the two sides of the lower end of the vertical pipe are rotationally connected with the handrail base, the buffering sleeves are arranged at the connecting positions of the two sides of the lower end of the vertical pipe and the handrail base, and each buffering sleeve comprises a first connecting sleeve, an elastic sleeve and a second connecting sleeve from outside to inside; wherein the first connecting sleeve is connected with a connecting part on the handrail base, the second connecting sleeve is connected with the two sides of the vertical pipe through connecting pieces, and a protective piece is arranged between the vertical pipe and the buffering sleeve. The buffer device can buffer and protect impact between the vertical pipe and the buffer sleeve, on one hand, vibration of the vertical pipe in the horizontal direction can be relieved, vibration borne by an operator is relieved, the use experience of the operator is improved, on the other hand, damage to the vertical pipe and the buffer sleeve can be reduced, and the service life of the vertical pipe is prolonged. Therefore, the service life of the armrest seat is prolonged.

Description

Technical Field

[0001] The utility model relates to an anti-seismic armrest seat, in particular to an anti-seismic armrest seat suitable for agricultural machinery and equipment. Background Art

[0002] In order to facilitate the operator to operate agricultural machinery and equipment, the armrest is an important component of agricultural machinery and equipment. The agricultural machinery and equipment is provided with an armrest seat, and the armrest is installed on the armrest seat. At present, in order to reduce the vibration force transmitted to the operator during the use of agricultural machinery and equipment, the armrest seat has a shock-absorbing function.

[0003] For example, Chinese patent document 2022219828625 discloses an armrest assembly with a shock-absorbing function, which is installed on a micro-tillage machine, including an armrest frame, which is connected to the trailer of the micro-tillage machine, wherein: an armrest seat is also included, and the lower end of the armrest frame is rotatably connected to the armrest seat through a vertical pipe; a buffer sleeve is provided at the connecting end of the vertical pipe and the armrest seat, and the vertical pipe is connected to the trailer of the micro-tillage machine through a buffer mechanism. The utility model can effectively improve the shock-absorbing effect, reduce the probability of arm paralysis of the operator after long-term use, and enable the operator to work continuously for a long time, thereby improving work efficiency. However, during use, the armrest assembly will not only vibrate in the vertical direction, but also in the horizontal direction. The armrest assembly in the prior art can only reduce the shock in the vertical direction, but cannot reduce the vibration in the horizontal direction. Therefore, after long-term use, it will also cause the operator to have arm paralysis. Therefore, how to provide a seismic armrest seat that can effectively reduce the vibration in the horizontal direction is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] In order to solve the problem that the existing armrest assembly cannot reduce the vibration in the horizontal direction and thus causes paralysis of the operator's arm, the utility model provides a seismic-resistant armrest seat, including a vertical pipe, an armrest base, a shock absorber and a buffer sleeve, the upper end of the vertical pipe is rotatably connected to the upper end of the shock absorber, the two sides of the lower end of the vertical pipe are rotatably connected to the armrest base and a buffer sleeve is arranged at the connection, and the buffer sleeve comprises a first connecting sleeve, an elastic sleeve and a second connecting sleeve from the outside to the inside; wherein the first connecting sleeve is connected to the connecting part on the armrest base, the second connecting sleeve is connected to the two sides of the vertical pipe through a connecting piece, and a protective piece is arranged between the vertical pipe and the buffer sleeve.

[0005] In the existing handrail assembly, since there is a gap between the vertical pipe and the buffer sleeve, during the use of the agricultural machinery and equipment, the vibration of the agricultural machinery and equipment in the horizontal direction will be transmitted to the vertical pipe through the buffer sleeve. Since there is a gap between the vertical pipe and the buffer sleeve, the vertical pipe will be impacted when the buffer sleeve contacts the vertical pipe, and the vertical pipe will vibrate, which is transmitted to the operator through the handrail. The impact will also cause wear to the vertical pipe and the buffer sleeve. After multiple impacts, the vertical pipe and the buffer sleeve will be damaged, reducing the life of the handrail assembly.

[0006] In this solution, after a protective member is provided between the riser and the buffer sleeve, the gap between the riser and the buffer sleeve can be reduced or even eliminated, and the impact between the riser and the buffer sleeve can be buffered and protected. On the one hand, the vibration of the riser in the horizontal direction can be reduced, thereby reducing the vibration suffered by the operator and improving the operator's user experience. On the other hand, the damage to the riser and the buffer sleeve can be reduced, thereby increasing the service life of the armrest seat.

[0007] Preferably, the protective member is a flat pad sleeved on the connecting member.

[0008] Preferably, the connecting member is a bolt, one end of which passes through the second connecting sleeve and is connected to a nut.

[0009] Preferably, the shock absorber is covered with a protective cover. In this solution, the protective cover is used to isolate the shock absorber from the outside world, thereby protecting the shock absorber.

[0010] Preferably, the shock absorber includes a connecting rod and a shock absorbing spring, and the protective cover is a retractable shell, and the two ends of the protective cover are respectively connected to the two ends of the shock absorbing spring. Considering that the length of the shock absorber changes during the shock absorbing process, a retractable shell is selected as the protective cover, and the protective cover can be more suitable for shock absorbers with variable length.

[0011] Preferably, the connecting rod is provided with an adjusting piece for adjusting the length of the shock absorbing spring, and the adjusting piece is located outside one end of the protective sleeve and abuts against the protective sleeve. The arrangement of the adjusting piece in this solution facilitates the adjustment of the shock absorbing effect of the shock absorbing spring, and the structure is simple.

[0012] Preferably, one end of the connecting rod is provided with a threaded section, and the adjusting member is an adjusting nut threadedly connected to the threaded section. In this solution, the position of the adjusting member on the connecting rod is adjusted by the cooperation of the threaded section and the nut, and the structure is simple.

[0013] Preferably, a first stopper is provided at the lower end of the riser to limit the distance the riser falls. Since the shock absorber loses its shock absorbing effect after being over-compressed, the first stopper is used to limit the distance the riser falls in this solution, thereby preventing the shock absorber from being over-compressed, and the structure is simple.

[0014] Preferably, a mounting portion is provided at the lower end of the vertical pipe, and the first limiting member is a limiting screw detachably connected to the mounting portion. In this solution, the limiting screw below the vertical pipe is used to limit the descending distance of the vertical pipe, and the structure is simple.

[0015] Preferably, a second limiter is provided on the upper part of the handrail base to limit the rising distance of the vertical pipe. Since the shock absorber will also lose its shock absorbing effect after being over-stretched, in this solution, the second limiter can be used to limit the rising distance of the vertical pipe, thereby preventing the shock absorber from being over-stretched, and the structure is simple.

[0016] Preferably, the second limiting member is an extension portion on the handrail base bent toward the vertical pipe. In this solution, the extension portion on the handrail base is used to limit the rising distance of the vertical pipe, and the structure is simple.

[0017] Preferably, the armrest base is connected to the lower end of the shock absorber via a connecting vertical pipe. In this solution, after the connecting vertical pipe is provided, the armrest base, the shock absorber and the connecting vertical pipe are connected to form a triangular structure, which can ensure the stability between the armrest base, the shock absorber and the connecting vertical pipe. At the same time, after the lower end of the shock absorber is directly connected to the connecting vertical pipe, when the armrest base is installed on the agricultural machinery and equipment, only the armrest base needs to be installed on the agricultural machinery and equipment, eliminating the need to install the shock absorber on the agricultural machinery and equipment.

[0018] Preferably, a cover is provided on the riser. In this solution, the setting of the cover can protect the riser.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model can buffer and protect the impact between the vertical pipe and the buffer sleeve. On the one hand, it can reduce the vibration of the vertical pipe in the horizontal direction, thereby reducing the vibration of the operator and improving the operator's experience. On the other hand, it can also reduce the damage to the vertical pipe and the buffer sleeve, thereby increasing the service life of the armrest seat.

[0021] 2. The utility model can isolate the shock absorber from the outside world, thereby protecting the shock absorber.

[0022] 3. The utility model can adjust the length of the shock absorber to adapt to different degrees of vibration.

[0023] 4. The utility model can also prevent the shock absorber from being over-compressed or over-stretched, so as to avoid failure of the shock absorber due to over-stretching or over-compression.

[0024] 5. The utility model can protect the riser and extend the service life of the riser. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a schematic diagram of an embodiment of the anti-seismic armrest seat of the utility model;

[0026] Figure 2 for Figure 1 Schematic diagram of the middle earthquake-resistant armrest seat with the cover removed;

[0027] Figure 3 for Figure 2 A front view of

[0028] Figure 4 for Figure 3 Right view of;

[0029] Figure 5 for Figure 4 Middle AA section view;

[0030] Figure 6 Schematic diagram of the covered structure. DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] 1. Definition

[0033] Shock absorber: It is used to suppress the shock caused by the rebound of the spring after absorbing the shock and the impact from the road surface.

[0034] Flat washer: It is mainly punched out of iron plate, and its shape is generally a flat washer with a hole in the middle.

[0035] 2. The reference numerals in the drawings of the specification include: cover 1, riser 2, protective cover 3, adjustment member 4, connecting rod 5, connecting riser 6, handrail base 7, connecting member 8, second limit member 9, protective member 10, first limit member 11, buffer cover 12.

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] The embodiment is basically as shown in the attached Figure 1-Figure 6 As shown: the anti-seismic armrest seat includes a vertical pipe 2, an armrest base 7, a shock absorber and a buffer sleeve 12. The armrest base 7 is connected to the lower end of the shock absorber through a connecting vertical pipe 6. The upper end of the vertical pipe 2 is rotatably connected to the upper end of the shock absorber, and both sides of the lower end of the vertical pipe 2 are rotatably connected to the armrest base 7 and a buffer sleeve 12 is set at the connection. The armrest base 7, the shock absorber and the connecting vertical pipe 6 are connected to form a triangular structure. The buffer sleeve 12 includes a first connecting sleeve, an elastic sleeve and a second connecting sleeve from the outside to the inside.

[0038] In this embodiment, specifically, the first connecting sleeve is connected to the connecting portion on the handrail base 7, the second connecting sleeve is connected to both sides of the vertical pipe 2 through the connecting member 8, and a protective member 10 is provided between the vertical pipe 2 and the buffer sleeve 12. The connecting member 8 is a bolt, one end of which passes through the second connecting sleeve and is connected to a nut. The protective member 10 is a flat washer sleeved on the connecting member 8.

[0039] In this embodiment, the shock absorber is covered with a protective cover 3. The shock absorber includes a connecting rod 5 and a shock absorbing spring. The protective cover 3 is a retractable shell, and the two ends of the protective cover 3 are respectively connected to the two ends of the shock absorbing spring. The connecting rod 5 is provided with an adjusting member 4 for adjusting the length of the shock absorbing spring. The adjusting member 4 is located outside one end of the protective cover 3 and abuts against the protective cover 3. Specifically, one end of the connecting rod 5 is provided with a threaded section, and the adjusting member 4 is an adjusting nut threadedly connected to the threaded section.

[0040] In this embodiment, a first stopper 11 is provided at the lower end of the vertical pipe 2 to limit the distance the vertical pipe 2 descends. A second stopper 9 is provided at the upper part of the handrail base 7 to limit the distance the vertical pipe 2 ascends. Preferably, a mounting portion is provided at the lower end of the vertical pipe 2, and the first stopper 11 is a stopper screw detachably connected to the mounting portion; the second stopper 9 is an extension portion bent toward the vertical pipe 2 on the handrail base 7. The top corner of the extension portion is rounded.

[0041] A cover 1 is provided on the riser 2. In this embodiment, Figure 6 As shown, a slot matching the standpipe 2 is provided on the inner side of the cover 1 , and the standpipe 2 is snapped into the cover 1 .

[0042] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A seismic armrest seat, comprising a vertical pipe, an armrest base, a shock absorber and a buffer sleeve, wherein the upper end of the vertical pipe is rotatably connected to the upper end of the shock absorber, the two sides of the lower end of the vertical pipe are rotatably connected to the armrest base and the buffer sleeve is arranged at the connection, and the buffer sleeve comprises a first connecting sleeve, an elastic sleeve and a second connecting sleeve from the outside to the inside; characterized in that: The first connecting sleeve is connected to the connecting portion on the handrail base, the second connecting sleeve is connected to both sides of the vertical pipe through a connecting piece, and a protective piece is provided between the vertical pipe and the buffer sleeve.

2. The anti-vibration armrest according to claim 1, characterized in that: The protective member is a flat pad sleeved on the connecting member.

3. The anti-seismic armrest according to claim 2, characterized in that: The connecting member is a bolt, and one end of the connecting member passes through the second connecting sleeve and is connected with a nut.

4. The anti-seismic armrest according to any one of claims 1 to 3, characterized in that: The shock absorber outer shell is provided with a protective sleeve.

5. The anti-seismic armrest according to claim 4, characterized in that: The shock absorber comprises a connecting rod and a shock absorbing spring, the protective cover is a retractable shell, and two ends of the protective cover are respectively connected to two ends of the shock absorbing spring.

6. The anti-vibration armrest according to claim 5, characterized in that: The connecting rod is provided with an adjusting piece for adjusting the length of the shock absorbing spring. The adjusting piece is located outside one end of the protective sleeve and abuts against the protective sleeve.

7. The anti-vibration armrest according to claim 6, characterized in that: A threaded section is provided at one end of the connecting rod, and the adjusting member is an adjusting nut threadably connected to the threaded section.

8. The anti-vibration armrest according to claim 1, characterized in that: The lower end of the riser is provided with a first limiter which limits the descending distance of the riser.

9. The anti-vibration armrest according to claim 8, characterized in that: A mounting portion is provided at the lower end of the vertical pipe, and the first limiting member is a limiting screw rod detachably connected to the mounting portion.

10. The anti-vibration armrest according to claim 1 or 8, characterized in that: The upper part of the handrail base is provided with a second limit piece for limiting the rising distance of the vertical pipe.

11. The anti-vibration armrest according to claim 10, characterized in that: The second limiting member is an extension portion of the handrail base that is bent toward the vertical pipe.

12. The anti-vibration armrest according to claim 11, characterized in that: The handrail base is connected to the lower end of the shock absorber through a connecting riser.

13. The earthquake-resistant armrest seat according to claim 1 or 12, characterized in that: The riser is provided with a cover.

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