Hydraulic cylinder for snow sweeper

Abstract

The utility model relates to the technical field of hydraulic cylinders, and one embodiment of the utility model provides a hydraulic cylinder for a snow sweeper, which comprises a mounting chassis, a cylinder body is arranged at the upper end of the mounting chassis, a constant-temperature sealing assembly is arranged on the mounting chassis, and a sealing insertion assembly is arranged on the cylinder body; the constant-temperature sealing assembly comprises a constant-temperature cover, the constant-temperature cover is buckled on the mounting base plate, the cylinder body is sleeved with the constant-temperature cover, a heating coil is arranged in the constant-temperature cover, a sealing ring strip is arranged on the lower end face of a sealing cover, the sealing ring strip is embedded into the limiting ring groove, an output hole is formed in the sealing cover, and an attached sealing ring sleeve is arranged on the output hole. According to the technical scheme, the technical problems that the working environment of a snow sweeper in the related technology / the prior art is usually severe, especially in a cold region, the low temperature may cause freezing or viscosity increasing of hydraulic oil in the hydraulic cylinder, normal working of the hydraulic cylinder is affected, and the snow removing efficiency is reduced are solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of hydraulic cylinder technology, and more specifically, to a hydraulic cylinder for a snowplow. Background Technology

[0002] Snowplows play a crucial role in winter road snow removal. Hydraulic cylinders are essential actuators in the hydraulic system of snowplows, ensuring the hydraulic lifting and rotation of working components such as snowplows and snow shovels, enabling flexible operation. However, the working environment of snowplows is often harsh, especially in cold regions. Low temperatures can cause the hydraulic oil inside the cylinder to freeze or increase in viscosity, affecting its normal operation and reducing snow removal efficiency. Traditional methods to address this include wrapping the hydraulic cylinder with insulating materials like cotton wool to slow the cooling of the hydraulic oil. However, the hydraulic oil temperature still drops during use, affecting the normal operation of the cylinder. Another method is to scrape ice from the cylinder surface with an ice scraper, but this has limited antifreeze effect in extremely cold environments. Furthermore, some existing hydraulic cylinders may have deficiencies in sealing performance and structural stability, making them unsuitable for the complex working environment and frequent operation requirements of snowplows.

[0003] Therefore, it is necessary to develop a hydraulic cylinder specifically designed for snowplows that can maintain good working performance in low-temperature environments, has reliable sealing performance and structural stability, so as to improve the working efficiency and reliability of snowplows and ensure safe and smooth roads in winter. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a hydraulic cylinder for a snowplow. The working environment of a snowplow is usually harsh, especially in cold regions. Low temperatures may cause the hydraulic oil in the hydraulic cylinder to freeze or increase in viscosity, affecting the normal operation of the hydraulic cylinder and reducing snow removal efficiency.

[0005] According to one aspect, at least one embodiment of this disclosure provides a hydraulic cylinder for a snowplow, comprising:

[0006] Mounting chassis, wherein a cylinder body is provided at the upper end of the mounting chassis;

[0007] A thermostatic sealing assembly is mounted on the mounting chassis.

[0008] A sealing plug assembly is disposed on the cylinder body;

[0009] The constant temperature sealing assembly includes a constant temperature cover, which is fastened to the mounting base and fitted onto the cylinder body. A heating coil is installed inside the constant temperature cover. An operating port is provided at the upper end of the constant temperature cover. A stepped groove is formed on the side wall of the operating port. A limiting ring groove is provided inside the stepped groove. A sealing cover is embedded in the stepped groove. A sealing ring strip is provided on the lower end face of the sealing cover and is embedded in the limiting ring groove. An output hole is provided inside the sealing cover, and a fitting sealing ring sleeve is provided on the output hole.

[0010] As a further technical solution, the upper end face of the sealing cover is provided with an arc-shaped groove, and a flip buckle is connected to the arc-shaped groove by a pin, and a pull ring is provided on the flip buckle.

[0011] As a further technical solution, the sealing plug assembly includes an extension block, which is disposed on the side wall of the mounting chassis. The side wall of the constant temperature cover is provided with an extension piece, which matches the shape of the extension block. Both the extension piece and the extension block are provided with screw holes, and a locking bolt is screwed into the screw holes.

[0012] As a further technical solution, an annular fitting pad is provided on the upper surface of the mounting chassis, and the annular fitting pad fits against the inner sidewall of the sealing cover.

[0013] As a further technical solution, the inner wall of the constant temperature cover is provided with supporting ribs, and the number of supporting ribs is several. The multiple supporting ribs are evenly distributed on the inner wall of the constant temperature cover. A sealing groove is opened on the annular fitting pad, and the lower end of the supporting rib is inserted into the sealing groove.

[0014] As a further technical solution, the side wall of the constant temperature cover is provided with an extension cover, the side wall of the extension cover has an inspection port, the side wall of the extension cover is provided with a swing frame, and the end hinge of the swing frame is connected to a sealing buckle cover, which is attached to the inspection port.

[0015] As a further technical solution, the output end of the cylinder is positioned upwards, the output end of the cylinder passes through the output hole, and the sealing ring is sealed and fitted to the output end of the cylinder.

[0016] As a further technical solution, the extension blocks are respectively disposed at the four corners of the side wall of the mounting chassis, and the extension piece and the extension block are sealed and fitted together.

[0017] As a further technical solution, the heating coil can be either a water pipe circulating warm water or a heating resistance wire.

[0018] As a further technical solution, the arc-shaped groove and the flip buckle are structurally matched, and both the arc-shaped groove and the flip buckle are semi-circular structures.

[0019] The beneficial effects of the embodiments disclosed herein are as follows:

[0020] 1. In this disclosure, by setting a heating coil inside the thermostatic cover, whether using water pipe circulation of warm water or heating resistance wire, the temperature around the hydraulic cylinder can be effectively increased. This design can prevent the hydraulic oil from freezing or increasing in viscosity due to low temperature, ensuring that the hydraulic cylinder can operate normally in a cold snow removal environment and significantly improving snow removal efficiency. For example, in an environment of -20 degrees Celsius, traditional hydraulic cylinders may experience work jamming, while hydraulic cylinders equipped with this thermostatic device can operate stably, ensuring that the snow removal vehicle can work continuously and efficiently.

[0021] 2. In this disclosure, the extension block and the extension plate are shaped and fixed by locking bolts. Combined with the sealing fit between the extension plate and the extension block, the sealing performance of the overall structure is greatly enhanced. The annular fitting pad on the mounting chassis fits against the inner wall of the constant temperature cover, and the cooperation between the support rib and the sealing groove on the annular fitting pad further strengthens the sealing effect. At the same time, these structural designs also improve the overall structural stability of the hydraulic cylinder, reduce the risk of component loosening or sealing failure caused by vibration and bumps during snow removal vehicle operation, extend the service life of the hydraulic cylinder, and reduce maintenance costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0024] Figure 2 This is a cross-sectional view of the thermostatic enclosure disclosed herein;

[0025] Figure 3 This is a cross-sectional view of the sealing cap of this disclosure;

[0026] Figure 4 This is an isometric view of an extension block of this disclosure;

[0027] Figure 5 This is a cross-sectional view of the thermostatic enclosure disclosed herein;

[0028] In the diagram: 1. Mounting chassis; 2. Cylinder body; 3. Thermostatic sealing assembly; 3-1. Thermostatic cover; 3-2. Heating coil; 3-3. Operating port; 3-4. Stepped groove; 3-5. Limiting ring groove; 3-6. Sealing cover; 3-7. Sealing ring strip; 3-8. Output hole; 3-9. Fitting sealing ring sleeve; 3-10. Arc groove; 3-11. Flip buckle; 3-12. Pull ring; 4. Sealing plug assembly; 4-1. Extension block; 4-2. Extension piece; 4-3. Tightening hole; 4-4. Locking bolt; 4-5. Annular fitting gasket; 5. Support rib; 6. Sealing groove; 7. Extension cover; 8. Inspection port; 9. Swing frame; 10. Sealing buckle cover. Detailed Implementation

[0029] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0030] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0032] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figures 1-5 As shown, a hydraulic cylinder for a snowplow vehicle disclosed herein includes:

[0036] Mounting chassis 1, with cylinder 2 mounted on the upper end of mounting chassis 1;

[0037] Thermostatic sealing assembly 3 is mounted on mounting chassis 1;

[0038] Sealing plug assembly 4 is disposed on cylinder body 2;

[0039] The thermostatic sealing assembly 3 includes a thermostatic cover 3-1, which is fastened onto the mounting base 1 and fitted onto the cylinder body 2. A heating coil 3-2 is installed inside the thermostatic cover 3-1. An operation port 3-3 is provided at the upper end of the thermostatic cover 3-1. A stepped groove 3-4 is opened on the side wall of the operation port 3-3. A limiting ring groove 3-5 is provided inside the stepped groove 3-4. A sealing cover 3-6 is embedded in the stepped groove 3-4. A sealing ring 3-7 is provided on the lower end face of the sealing cover 3-6. The sealing ring 3-7 is embedded in the limiting ring groove 3-5. An output hole 3-8 is opened inside the sealing cover 3-6. A fitting sealing ring sleeve 3-9 is provided on the output hole 3-8.

[0040] The sealing plug assembly 4 includes an extension block 4-1, which is disposed on the side wall of the mounting base 1. The side wall of the constant temperature cover 3-1 is provided with an extension piece 4-2, which matches the shape of the extension piece 4-1. Both the extension piece 4-2 and the extension block 4-1 are provided with screw holes 4-3, and a locking bolt 4-4 is screwed into the screw holes 4-3.

[0041] In some examples, the output end of cylinder 2 is positioned upwards so that it passes through the output hole 3-8 of the sealing cover 3-6, ensuring a tight seal between the sealing ring 3-9 and the output end of cylinder 2 to prevent hydraulic oil leakage and the entry of external impurities. The stepped groove 3-4 on the operating port 3-3 is used to fasten the sealing cover 3-6. The sealing cover 3-6 achieves a seal after being fitted between the sealing ring 3-7 and the limiting ring groove 3-5. The output hole 3-8 is used to pass through the output end of cylinder 2.

[0042] For the sealing plug assembly 4, confirm that the connection between the extension block 4-1 and the extension piece 4-2 is secure, the locking bolt 4-4 is tightened, and the two are sealed together to prevent external impurities from entering the hydraulic cylinder and affecting its performance.

[0043] like Figures 1-5 As shown in the figure, this embodiment proposes that the upper end face of the sealing cover 3-6 has an arc-shaped groove 3-10, and a flip buckle 3-11 is connected to the arc-shaped groove 3-10 by a pin shaft, and a pull ring 3-12 is provided on the flip buckle 3-11.

[0044] In some examples, a flip buckle 3-11 is connected to the upper end face of the sealing cover 3-6 via a pin in the arc groove 3-10. The pull ring 3-12 on the flip buckle 3-11 facilitates operation of the flip buckle 3-11, thereby opening and closing the sealing cover 3-6.

[0045] For example, such as Figure 2 As shown, an annular fitting pad 4-5 is provided on the upper end surface of the mounting base 1, and the annular fitting pad 4-5 is in contact with the inner side wall of the sealing cover.

[0046] In some examples, the annular fitting pad 4-5 is used to install the sealing connection between the chassis 1 and the thermostatic cover 3-1.

[0047] For example, such as Figure 2 As shown, the inner wall of the thermostatic cover 3-1 is provided with supporting ribs 5. There are several supporting ribs 5, and multiple supporting ribs 5 are evenly distributed on the inner wall of the thermostatic cover 3-1. A sealing groove 6 is opened on the annular bonding pad 4-5, and the lower end of the supporting rib 5 is inserted into the sealing groove 6.

[0048] In some examples, the support rib 5 strengthens the rigidity of the thermostatic cover 3-1 and improves the support effect, while the sealing groove 6 is used to ensure the sealing of the support rib 5 during insertion.

[0049] For example, such as Figure 2 As shown, the side wall of the thermostatic cover 3-1 is provided with an extension cover 7, the side wall of the extension cover 7 has an inspection port 8, the side wall of the extension cover 7 is provided with a swing frame 9, the end of the swing frame 9 is hinged to a sealing buckle cover 10, the sealing buckle cover 10 is attached to the inspection port 8, the output end of the cylinder 2 is placed upward, the output end of the cylinder 2 passes through the output hole 3-8, and the sealing ring sleeve 3-9 is sealed and attached to the output end of the cylinder 2.

[0050] In some examples, the access port 8 on the extension cover 7 is used for maintenance, while the swing bracket 9 provides the folding opening or closing of the sealing cover 10 for easy maintenance and sealing effect during use.

[0051] For example, such as Figure 1As shown, the extension blocks 4-1 are respectively set at the four corners of the side wall of the mounting base 1. The extension piece 4-2 is sealed and fitted with the extension block 4-1. The heating coil 3-2 is either a water pipe circulating warm water or a heating resistance wire. The arc groove 3-10 and the flip buckle 3-11 are structurally matched. Both the arc groove 3-10 and the flip buckle 3-11 are semi-circular structures.

[0052] During operation, if the ambient temperature is low, the heating coil 3-2 can be turned on as needed to maintain a stable temperature around the hydraulic cylinder. For example, when the ambient temperature is below 0 degrees Celsius, the heating coil 3-2 can be turned on to keep the temperature inside the thermostat 3-1 between 5 and 15 degrees Celsius to ensure the fluidity of the hydraulic oil and the normal operation of the hydraulic cylinder. If it is necessary to inspect or maintain the inside of the hydraulic cylinder, the sealing cover 10 can be opened. After the operation is completed, the sealing cover 10 should be fastened back to its original position in a timely manner.

[0053] Install extension blocks 4-1 at the four corners of the side wall of the mounting base 1, and install extension pieces 4-2 on the side wall of the thermostatic cover 3-1, so that the shape of the extension pieces 4-2 matches and the extension blocks 4-1 fits tightly. Tighten the locking bolts 4-4 into the screw holes 4-3 on the extension pieces 4-2 and the extension blocks 4-1 to securely connect the thermostatic cover 3-1 to the mounting base 1.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A hydraulic cylinder for a snowplow, characterized in that, include: Mounting chassis (1), wherein a cylinder body (2) is provided on the upper end of the mounting chassis (1); Thermostatic sealing assembly (3) is mounted on the mounting chassis (1); A sealing plug assembly (4) is disposed on the cylinder body (2); The thermostatic sealing assembly (3) includes a thermostatic cover (3-1), which is fastened to the mounting base (1) and fitted onto the cylinder body (2). A heating coil (3-2) is installed inside the thermostatic cover (3-1). An operating port (3-3) is provided at the upper end of the thermostatic cover (3-1), and a stepped groove (3-4) is formed on the side wall of the operating port (3-3). The groove (3-4) is provided with a limiting ring groove (3-5). A sealing cover (3-6) is embedded in the stepped groove (3-4). A sealing ring strip (3-7) is provided on the lower end face of the sealing cover (3-6). The sealing ring strip (3-7) is embedded in the limiting ring groove (3-5). An output hole (3-8) is opened inside the sealing cover (3-6). A fitting sealing ring sleeve (3-9) is provided on the output hole (3-8).

2. A hydraulic cylinder for a snowplow vehicle according to claim 1, characterized in that, The upper end face of the sealing cover (3-6) has an arc-shaped groove (3-10), and a flip buckle (3-11) is connected to the arc-shaped groove (3-10) by a pin. A pull ring (3-12) is provided on the flip buckle (3-11).

3. A hydraulic cylinder for a snowplow vehicle according to claim 1, characterized in that, The sealing plug assembly (4) includes an extension block (4-1), which is disposed on the side wall of the mounting chassis (1). The side wall of the thermostatic cover (3-1) is provided with an extension piece (4-2), which matches the shape of the extension piece (4-1). Both the extension piece (4-2) and the extension block (4-1) are provided with screw holes (4-3), and a locking bolt (4-4) is screwed into the screw hole (4-3).

4. A hydraulic cylinder for a snowplow vehicle according to claim 1, characterized in that, The upper surface of the mounting chassis (1) is provided with an annular fitting pad (4-5), which fits against the inner wall of the constant temperature cover (3-1).

5. A hydraulic cylinder for a snowplow vehicle according to claim 4, characterized in that, The inner wall of the thermostatic cover (3-1) is provided with supporting ribs (5), and there are several supporting ribs (5). The multiple supporting ribs (5) are evenly distributed on the inner wall of the thermostatic cover (3-1). The annular fitting pad (4-5) has a sealing groove (6), and the lower end of the supporting rib (5) is inserted into the sealing groove (6).

6. A hydraulic cylinder for a snowplow vehicle according to claim 1, characterized in that, The side wall of the constant temperature cover (3-1) is provided with an extension cover (7), the side wall of the extension cover (7) is provided with an inspection port (8), the side wall of the extension cover (7) is provided with a swing frame (9), the end hinge of the swing frame (9) is connected to a sealing buckle cover (10), and the sealing buckle cover (10) is attached to the inspection port (8).

7. A hydraulic cylinder for a snowplow vehicle according to claim 1, characterized in that, The output end of the cylinder (2) is positioned upwards, and the output end of the cylinder (2) passes through the output hole (3-8). The sealing ring (3-9) is sealed and fitted with the output end of the cylinder (2).

8. A hydraulic cylinder for a snowplow vehicle according to claim 3, characterized in that, The extension blocks (4-1) are respectively located at the four corners of the side wall of the mounting chassis (1), and the extension piece (4-2) is sealed and fitted with the extension block (4-1).

9. A hydraulic cylinder for a snowplow vehicle according to claim 1, characterized in that, The heating coil (3-2) can be either a water pipe circulating warm water or a heating resistance wire.

10. A hydraulic cylinder for a snowplow vehicle according to claim 2, characterized in that, The arc-shaped groove (3-10) and the flip buckle (3-11) are structurally matched, and both the arc-shaped groove (3-10) and the flip buckle (3-11) are semi-circular structures.

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