Handle sealing telescopic sleeve

Abstract

A handle sealing telescopic sleeve comprises an upper sealing sleeve, a lower sealing sleeve and a pressing plate, the upper sealing sleeve is in a conical shape, the lower sealing sleeve is in an inverted conical shape, the top of the upper sealing sleeve and the top of the lower sealing sleeve are both fixed to an operating rod, the upper sealing sleeve wraps the part, located above a seat plate, of the operating rod, and the lower sealing sleeve wraps the part, located above the seat plate, of the operating rod. The lower sealing sleeve wraps the portion, located below the seat plate, of the operating rod, the bottom of the upper sealing sleeve penetrates through an opening, used for placing the operating rod, in the seat plate and is in lap joint with the bottom face of the seat plate, and the bottom of the lower sealing sleeve is stacked on the bottom of the upper sealing sleeve. The bottom of the upper sealing sleeve and the bottom of the lower sealing sleeve are fixed between the bottom face of the seat plate and the pressing plate through screws. According to the utility model, the lower sealing sleeve is added on the basis of the prior art, and is assembled on the part, below the bottom surface of the seat plate, of the operating rod, so that no matter which position of the operating rod is, one sealing sleeve can be ensured to be tightly attached to the operating rod, and the sealing is reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to operating rod technical field, concretely relates to a handle seal telescopic sleeve. BACKGROUND

[0002] With the development of the domestic harvester market, the user's requirement to the modern agricultural machinery is also higher and higher, and improving the user's driving comfort is an important link. The biggest influence on the driver is the sealing problem, but the sealing problem in the cab is not perfect, most of which is only partial sealing, the cost is higher, the effect is poor, dust and noise enter the cab, which reduces the comfort of the cab and affects the driving experience.

[0003] The existing sealing sleeve is assembled on the upper half of the main operating rod, when the operating rod is pulled to a large angle, a gap is formed between the sealing sleeve and the operating rod, which leads to poor sealing, serious dust entering and affects the comfort of the driver. The driver needs to ensure that the operating rod is completely sealed when moved to any position. Therefore, a handle sealing telescopic sleeve is designed, which has practical application value. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, the purpose of the utility model is to provide a handle sealing telescopic sleeve, which aims to solve the problem of ensuring that the operating rod and the sealing sleeve are completely sealed when the driver moves the operating rod to any position.

[0005] The utility model is realized through the following technical schemes:

[0006] A handle sealing telescopic sleeve comprises an upper sealing sleeve, a lower sealing sleeve and a pressing plate.

[0007] The upper sealing sleeve is conical, the lower sealing sleeve is inverted conical, the top of the upper sealing sleeve and the top of the lower sealing sleeve are fixed on the operating rod, the upper sealing sleeve wraps the part of the operating rod above the seat plate, the lower sealing sleeve wraps the part of the operating rod below the seat plate, the bottom of the upper sealing sleeve passes through the opening on the seat plate for the operating rod and is lapped on the bottom surface of the seat plate, the bottom of the lower sealing sleeve is overlapped on the bottom of the upper sealing sleeve, and the bottom of the upper sealing sleeve and the bottom of the lower sealing sleeve are fixed between the bottom surface of the seat plate and the pressing plate through screws.

[0008] Preferably, a plurality of circles of corrugations are evenly arranged on the circumference of the upper sealing sleeve.

[0009] More preferably, the size of the groove formed between each adjacent corrugation of the upper sealing sleeve gradually decreases from the top to the bottom.

[0010] Preferably, the upper sealing sleeve is in the shape of a quadrangular pyramid, and the lower sealing sleeve is in the shape of an inverted quadrangular pyramid.

[0011] Preferably, the lower sealing sleeve is made of elastic material.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a lower sealing sleeve is assembled on the part of the operating rod below the bottom surface of the seat plate, so that no matter the position of the operating rod is, a sealing sleeve can be tightly attached to the operating rod, and the sealing is reliable. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to make the technical scheme of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed for the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0015] Figure 1 It is the structural schematic view of the handle sealing telescopic sleeve of the utility model.

[0016] Among them, the upper sealing sleeve 1, the corrugation 101, the groove 102, the lower sealing sleeve 2, the pressing plate 3, the operating rod 4, the seat plate 5, the screw 6. DETAILED DESCRIPTION

[0017] In order to make the technical scheme of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed for the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0018] The technical scheme of the utility model will be further described below in combination with the drawings. Figure 1A handle sealing telescopic sleeve is shown, including an upper sealing sleeve 1, a lower sealing sleeve 2, and a pressure plate 3. The upper sealing sleeve 1 is conical, and the lower sealing sleeve 2 is inverted conical. The tops of both the upper sealing sleeve 1 and the lower sealing sleeve 2 are fixed to an operating rod 4. The upper sealing sleeve 1 covers the portion of the operating rod 4 located above the seat plate 5, and the lower sealing sleeve 2 covers the portion of the operating rod 4 located below the seat plate 5. The bottom of the upper sealing sleeve 1 passes through an opening on the seat plate 5 for inserting the operating rod 4 and overlaps the bottom surface of the seat plate 5. The bottom of the lower sealing sleeve 2 overlaps the bottom of the upper sealing sleeve 1. The bottoms of the upper sealing sleeve 1 and the bottom of the lower sealing sleeve 2 are fixed between the bottom surface of the seat plate 5 and the pressure plate 3 using screws 6. When the pulling angle of the operating rod 4 is too large, a gap will form between the entire sealing sleeve and the operating rod 4. When the upper sealing sleeve 1 is not sealed tightly, the lower sealing sleeve 2 is sealed well, and vice versa.

[0019] When the operating lever 4 is pulled, the upper sealing sleeve 1 will be pulled. Several corrugations 101 are evenly arranged horizontally around the upper sealing sleeve 1. As the pulling angle increases, the corrugations gradually flatten, reducing the pulling effect between the top of the upper sealing sleeve 1 and the rod of the operating lever 4, which affects the sealing performance.

[0020] Because the top and bottom of the operating lever 4 swing at different displacements when it is pulled, and the displacement gradually decreases from top to bottom, correspondingly, as an embodiment of this utility model, the groove 102 formed between each adjacent corrugation 101 of the upper sealing sleeve 1 is designed such that its size gradually decreases from top to bottom.

[0021] To balance practicality and aesthetics, the upper sealing sleeve 1 is designed as a square pyramid, and the lower sealing sleeve 2 is an inverted square pyramid.

[0022] To reduce the impact of the pulling effect between the top of the lower sealing sleeve 2 and the rod of the operating lever 4 on the sealing performance, the lower sealing sleeve 2 is not corrugated. Compared with the upper sealing sleeve 1, the lower sealing sleeve 2 is smaller in size. The lower sealing sleeve 2 is made of elastic material, which is more elastic than the upper sealing sleeve 1, and the elasticity is used to counteract the pulling effect.

[0023] The working principle of this utility model:

[0024] Overall component structure as follows Figure 1 As shown, the sealing sleeve consists of three parts: upper sealing sleeve 1, lower sealing sleeve 2, and pressure plate 3. They are assembled according to... Figure 1 The levers are arranged in the indicated directions and placed on the bottom surface of the seat plate 5. They are then fixed to the seat plate 5 with screws 6 to ensure that the operating levers 4 are completely covered.

[0025] When the pulling angle of the operating lever 4 is too large, a gap is formed between the whole sealing sleeve and the operating lever 4, and when the upper sealing sleeve 1 is not tightly sealed, but the lower sealing sleeve 2 is tightly sealed, or vice versa, the lower sealing sleeve 2 is not tightly sealed, the sealing is good no matter where the operating lever 4 is located, and the comfort of the driver is improved.

[0026] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A handle seal telescoping sleeve characterized by: The utility model relates to a sealing device for operating lever, which comprises an upper sealing sleeve (1), a lower sealing sleeve (2) and a pressing plate (3), wherein the upper sealing sleeve (1) is conical, the lower sealing sleeve (2) is inverted conical, the top of the upper sealing sleeve (1) and the top of the lower sealing sleeve (2) are fixed on the operating lever (4), the upper sealing sleeve (1) wraps the part of the operating lever (4) above the seat plate (5), the lower sealing sleeve (2) wraps the part of the operating lever (4) below the seat plate (5), the bottom of the upper sealing sleeve (1) passes through the opening on the seat plate (5) for the operating lever (4) and overlaps on the bottom surface of the seat plate (5), the bottom of the lower sealing sleeve (2) overlaps on the bottom of the upper sealing sleeve (1), and the bottom of the upper sealing sleeve (1) and the bottom of the lower sealing sleeve (2) are fixed between the bottom surface of the seat plate (5) and the pressing plate (3) by means of screws (6).

2. The handle seal telescoping sleeve of claim 1, wherein: The upper sealing sleeve (1) is provided with several circles of corrugations (101) evenly on the circumference.

3. The handle seal telescoping sleeve of claim 2, wherein: The grooves (102) formed between each adjacent corrugation (101) of the upper sealing sleeve (1) gradually decrease in size from top to bottom.

4. The handle seal according to claim 1 or 3, wherein: The upper sealing sleeve (1) is in the shape of a quadrangular pyramid, and the lower sealing sleeve (2) is in the shape of an inverted quadrangular pyramid.

5. The handle seal telescoping boot of claim 1, wherein: The lower sealing sleeve (2) is made of elastic material.

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