Protection device for supporting leg oil cylinder of fire-fighting robot

Abstract

The utility model discloses a fire-fighting robot supporting leg oil cylinder protection device which comprises a protection cover and a connecting device arranged on the protection cover, a limiting column is further arranged on the protection cover, and a sliding rail space is formed by the limiting column and the protection cover. The connecting device comprises a fixing shaft and a shaft sleeve connected to the fixing shaft in a sleeving mode. Gaskets and fixing nuts are arranged at the two ends of the fixing shaft in a matched mode for fixing. The device is simple in structure and convenient to mount, the oil cylinder of the supporting leg of the fire-fighting robot can be protected, hard objects such as broken stones and disintegrating slag are prevented from splashing and falling off to damage the oil cylinder in the operation process, and it can be guaranteed that the supporting leg of the robot is not clamped by foreign matter during scaling.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of oil cylinder protection, and particularly relates to a fire-fighting robot supporting leg oil cylinder protection device. BACKGROUND

[0002] When the fire-fighting robot is working, four supporting legs need to be opened, and the oil cylinder is in an extended state, so that the oil cylinder is completely exposed, and when the robot is working, the broken stones and broken slag will fall and splash, causing damage to the oil cylinder, or the oil cylinder cannot be normally retracted after being stuck, so that the equipment cannot be normally used.

[0003] The Chinese utility model patent with the publication number CN203996153U discloses a tire type excavator lower vehicle supporting leg oil cylinder protection device, which comprises a supporting leg arm, a supporting leg oil cylinder and a supporting leg body, the supporting leg body is connected with the supporting leg arm through the supporting leg oil cylinder, a locking device and a protection device are arranged, one end of the protection device is fixed to the upper end of the supporting leg oil cylinder through the locking device, and the other end of the protection device is inserted into the inside of the supporting leg body, and the gap between the protection device and the oil cylinder body is less than 10mm. The protection strength is enhanced. However, the protection device is a flat plate, and can only perform partial protection, and the protection range is limited. UTILITY MODEL CONTENT

[0004] In order to solve the above problems, the utility model aims at providing a robot supporting leg oil cylinder protection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a fire-fighting robot supporting leg oil cylinder protection device, which comprises a protection cover, a connecting device arranged on the protection cover, a limiting column arranged on the protection cover, and a sliding rail space formed by the limiting column and the protection cover.

[0006] Preferably, the connecting device comprises a fixed shaft, a shaft sleeve sleeved on the fixed shaft, and a gasket and a fixed nut matched with the two ends of the fixed shaft for fixation.

[0007] Preferably, the protection cover is formed into a semi-enclosing structure by three plate pieces, comprises two symmetrical side plates, a back plate connecting the two side plates, the back plate is formed by two parallelogram integrated bending structures, and the bending positions are obtuse angles.

[0008] Preferably, two recessed grooves are formed in one end of the back plate, a shaft sleeve is arranged in the middle of the two recessed grooves, and the two ends of the fixed shaft are arranged at the opening positions of the recessed grooves.

[0009] Preferably, limiting columns are arranged on the inner end faces of the two side plates.

[0010] Compared with the prior art, the device has the following advantages: simple structure, convenient installation, and full-range protection of the oil cylinder of the fire-fighting robot supporting leg, preventing hard objects such as stones and slag from splashing and falling to damage the oil cylinder during operation, and ensuring that the robot supporting leg is not stuck by foreign matters during extension and retraction. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0012] Figure 1 is a schematic diagram of the oil cylinder protection device in the present application;

[0013] Figure 2 is a schematic diagram of the oil cylinder installation supporting leg in the present application;

[0014] Figure 3 is a partial schematic diagram of the installation supporting leg in the present application Figure 1 ;

[0015] Figure 4 is an enlarged view of A in Figure 3 ;

[0016] Figure 5 is a partial schematic diagram of the installation supporting leg in the present application Figure 2 ;

[0017] Figure 6 is an enlarged view of B of Figure 5 ;

[0018] Figure 7 is a schematic diagram of the supporting leg extension in the present application;

[0019] Figure 8 is a schematic diagram of the supporting leg retraction in the present application;

[0020] In the drawings, 1 is a protective cover; 2 is a shaft sleeve; 3 is a limiting column; 4 is a gasket; 5 is a fixed shaft; 6 is a fixed nut; 7 is an oil cylinder; and 8 is a supporting leg. DETAILED DESCRIPTION

[0021] The present application will be further described below in conjunction with the drawings and specific embodiments, but it should not be understood that the scope of the subject matter described in the present application is limited to the following embodiments. Any modifications, replacements and changes made according to the ordinary technical knowledge and conventional means in the art without departing from the technical concept of the present application are included in the scope of the present application.

[0022] With reference to Figure 1 , the oil cylinder protection device is installed between the frame and the support leg 8 to protect the support leg oil cylinder 7. With reference to Figure 2 , the support leg oil cylinder protection device is composed of a protective cover 1, a shaft sleeve 2, a limiting column 3, a gasket 4, a fixing shaft 5, and a fixing nut 6. The connecting device includes the fixing shaft 5, the shaft sleeve 2 sleeved on the fixing shaft 5, and the gasket 4 and the fixing nut 6 matched at both ends of the fixing shaft 5 for fixation. The protective cover 1 is formed by three plate pieces and has a semi-enclosed structure, including two symmetrical side plates and a back plate connecting the two side plates. The back plate is composed of two parallelogram integrated bending parts, and the bending parts are obtuse angles. Two recessed openings are formed at one end of the back plate, and the shaft sleeve 2 is installed in the middle of the two recessed openings, and the two ends of the fixing shaft 5 are arranged at the opening of the recessed opening. The inner end faces of the two side plates are both provided with the limiting column 3.

[0023] Principle description: with reference to Figures 2-6 , the support leg oil cylinder protection device is fixed at the frame through the fixing shaft 5 penetrating the shaft sleeve 2 and the gasket 4 and fixed by the fixing nut 6. When installing, the limiting column 3 is installed along the bottom of the support leg top plate, and the support leg top plate is ensured to be located between the limiting column 3 and the protective cover 1 to form a simple sliding rail, so that the oil cylinder protection device can freely move along with the support leg 8 to extend and retract, and the support leg oil cylinder 7 can be effectively protected.

[0024] Action description:

[0025] Support leg unfolding: the support leg oil cylinder 7 is operated to extend, and the support leg 8 gradually unfolds under the action of the oil cylinder thrust. At this time, the oil cylinder protection cover and the support leg 8 are in sliding constraint, so that the oil cylinder protection cover slides on the support leg top plate, and the protection cover can rotate around the fixed end of the frame. The protection cover can always effectively protect the oil cylinder during the entire unfolding process, as shown in FIG. 7.

[0026] Support leg retraction: the support leg oil cylinder 7 is operated to retract, and the support leg 8 gradually retracts under the action of the oil cylinder tension. At this time, the oil cylinder protection cover 1 and the support leg are in sliding constraint, so that the oil cylinder protection cover 1 slides on the support leg top plate, and the protection cover 1 can rotate around the fixed end of the frame. The protection cover can always effectively protect the oil cylinder during the entire retraction process, as shown in FIG. 8. Figure 8

[0027] The device has a simple structure and is easy to install, can realize the protection of the support leg oil cylinder of the fire-fighting robot, prevent hard objects such as gravel and slag from splashing and falling to damage the oil cylinder during operation, and also can ensure that the robot support leg is not stuck by foreign matters when it is zoomed in and out.

[0028] ​The above has carried out the detailed introduction to the protection device for the robot supporting leg oil cylinder provided by the utility model, the structure and working principle of the utility model are described by applying specific examples in this paper, and the above embodiment is only used for helping to understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the utility model claims.

Claims

1. A fire-fighting robot outrigger cylinder protection device, characterized in that: The utility model relates to a protective cover (1), connecting device is arranged on protective cover (1), and limiting post (3) is further arranged on protective cover, and limiting post (3) and protective cover (1) constitute slide rail space.

2. The fire-fighting robot leg oil cylinder protection device according to claim 1, characterized in that: The connecting device comprises a fixed shaft (5), a shaft sleeve (2) sleeved on the fixed shaft (5), and a gasket (4) and a fixed nut (6) matched at both ends of the fixed shaft (5) for fixation.

3. The fire-fighting robot leg oil cylinder protection device according to claim 1, characterized in that: The protective cover (1) is formed by three plate pieces and is a half-enclosing structure, comprising two symmetrical side plates and a back plate connecting the two side plates, the back plate is formed by two parallelogram integrated bending structures, and the bending part is an obtuse angle.

4. The fire-fighting robot leg oil cylinder protection device according to claim 3, characterized in that: Two recessed openings are formed at one end of the back plate, the shaft sleeve (2) is installed in the middle of the two recessed openings, and the two ends of the fixed shaft (5) are arranged at the opening of the recessed opening.

5. The fire-fighting robot leg oil cylinder protection device according to claim 3, characterized in that: The inner end face of the two side plates is provided with a limiting post (3).

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