CN217834821U

CN217834821U - Lifting hydraulic device capable of preventing gravity from falling

Info

Publication number: CN217834821U
Application number: CN202222185624.8U
Authority: CN
Inventors: 丁勇; 杨锐; 刘刚
Original assignee: Anhui Four Hundred Million Hydraulic Machinery Co ltd
Current assignee: Anhui Four Hundred Million Hydraulic Machinery Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-11-18
Anticipated expiration: 2032-08-19

Abstract

The utility model discloses a lifting hydraulic device for preventing gravity from self-falling, which relates to the technical field of lifting hydraulic systems and comprises a lifting hydraulic device for preventing gravity from self-falling, comprising a main body, wherein a damping device is arranged at the top end of the main body, a hydraulic device is arranged in the top of the main body, a pressure block is arranged in the main body, bearing walls are arranged at two ends of the pressure block, self-falling prevention devices are arranged in two sides of the main body, supporting legs are arranged at the bottom end of the main body, a base is arranged below the pressure block and at the lower end of the main body, and the damping device comprises a damping wheel; the self-falling prevention device comprises a sliding rail. The utility model discloses a damping device can not lead to suddenly weighing down under the action of gravity because of hydraulic system's inefficacy, even if falling prevention device's even if hydraulic means is not exerting the reaction force of gravity to the pressure block, the pressure block also can keep the take the altitude under the effort through the spring, and can not produce danger because of the gravity tenesmus of own.

Description

Lifting hydraulic device capable of preventing gravity from falling

Technical Field

The utility model relates to a lift hydraulic system technical field, concretely relates to prevent gravity from hydraulic means that goes up and down who weighs down.

Background

Hydraulic lifting is a lifting device that can be raised or lowered to a certain height by means of a hydraulic system. The hydraulic system functions to increase the force by changing the pressure. A complete hydraulic system consists of five parts, namely a power element, an actuator, a control element, an auxiliary element (attachment) and hydraulic oil. Hydraulic systems can be divided into two categories, hydraulic transmission systems and hydraulic control systems. Hydraulic drive systems have the main function of transmitting power and motion. The hydraulic control system is then required to have the hydraulic system output meet specific performance requirements (particularly dynamic performance). The following problems exist in the prior art:

1. in the existing lifting hydraulic system, the gravity of a heavy object in work and the gravity of the system are supported by the hydraulic system, the system is easily damaged when the load-bearing range of the hydraulic system is exceeded, and the sudden failure of the hydraulic system can cause the heavy object and the system to suddenly drop under the action of the gravity, so that danger is generated;

2. in the existing lifting hydraulic system, the descending speed and the ascending speed are generally in a constant speed state, but the speed is only controlled by the hydraulic system, so that the dangerous situation of cylinder explosion is easily caused when the ascending speed or the descending speed of the hydraulic system is too high, and a damping device with controllable speed is needed to assist the running speed of the hydraulic system.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a lifting hydraulic device capable of preventing gravity self-falling comprises a main body, wherein a damping device is arranged at the top end of the main body, a hydraulic device is arranged in the top of the main body, a pressure block is arranged in the main body, bearing walls are arranged at two ends of the pressure block, self-falling prevention devices are arranged in two sides of the main body, supporting legs are arranged at the bottom end of the main body, a base is arranged below the pressure block and at the lower end of the main body, and the damping device comprises a damping wheel; the self-falling prevention device comprises a sliding rail.

The utility model discloses technical scheme's further improvement lies in: the upper end of the pressure block is fixedly connected with the lower end of the hydraulic device, and the self-falling prevention devices are arranged on two sides of the bearing wall.

The utility model discloses technical scheme's further improvement lies in: the hydraulic device comprises a second hydraulic rod, and a first hydraulic rod is movably arranged in the second hydraulic rod.

The utility model discloses technical scheme's further improvement lies in: the inside winding of damping wheel has the connecting band, the middle part of damping wheel is provided with the friction axle, the lower extreme fixed mounting of damping wheel has the support frame, the one end that the damping wheel was kept away from to the connecting band is provided with the tie point, tie point lower extreme fixedly connected with atress piece.

The utility model discloses technical scheme's further improvement lies in: the damping device comprises damping wheels, a connecting belt, a stress block and a damping device, wherein the damping wheels are movably connected with each other through the connecting belt, the connecting belt is fixedly connected with the stress block through a connecting point, the damping device is fixedly installed at the top end of a main body through a supporting frame, and the stress block is fixedly installed on a pressure block.

The utility model discloses technical scheme's further improvement lies in: the top of slide rail is provided with the stopper, the surperficial sliding connection of slide rail has the slider, the lower extreme of slider and the surface cover at the slide rail are equipped with the spring, the one end fixedly connected with connecting block of slider, the one end and the pressure piece fixed connection of slider are kept away from to the connecting block, the spout has been seted up to the inside of bearing wall, the connecting block joint is in the inside of spout.

The utility model discloses technical scheme's further improvement lies in: the pressure block is fixedly connected with the sliding block through a connecting block, the pressure block is movably mounted in the sliding groove through the connecting block, and the pressure block is movably mounted on the sliding rail through the sliding block.

Owing to adopted above-mentioned technical scheme, the utility model discloses relative prior art, the technological progress who gains is:

1. the utility model provides a prevent gravity from drop lift hydraulic means, be connected with the connecting band between damping device's the damping wheel, and the axis is the friction axis in the damping wheel, it is bigger to rotate the resistance, keep rotating at the uniform velocity easily, the end-to-end connection of connecting band is being atred the piece, the atress piece is installed on the pressure piece, through connecting band swing joint between pressure piece and the damping wheel, the pressure piece rises and all will receive damping device's effort with the decline, only can keep at the uniform velocity and lower fast state, and can not lead to dropping suddenly because of hydraulic system's inefficacy under the action of gravity.

2. The utility model provides a prevent gravity from falling lift hydraulic means, anti-falling device's pressure piece passes through connecting block movable mounting in the spout, and the pressure piece passes through slider movable mounting on the slide rail, and the below of slider is provided with the spring, rises to fixed position when the pressure piece drives at hydraulic means, even if hydraulic means is not exerting the reaction force of gravity to the pressure piece, the pressure piece also can keep the take the altitude under the effort through the spring, and can not produce danger because of the gravity tenesmus of own.

3. The utility model provides a prevent gravity from falling lift hydraulic means, the upper end of pressure piece and hydraulic means's lower extreme fixed connection can realize the rising and the decline of pressure piece through hydraulic means.

Drawings

Fig. 1 is a schematic structural view of a lifting hydraulic system for preventing gravity self-dropping of the present invention;

fig. 2 is a schematic structural view of the damping device of the present invention;

fig. 3 is a schematic structural view of the hydraulic apparatus of the present invention;

fig. 4 is a schematic view of a partial structure of the self-dropping prevention device of the present invention.

In the figure: 1. a main body; 2. a damping device; 3. a hydraulic device; 4. a pressure block; 5. a base; 6. a self-dropping prevention device; 7. supporting legs; 8. a bearing wall; 21. a damping wheel; 22. a connecting belt; 23. a friction shaft; 24. A support frame; 25. a connection point; 26. a stress block; 31. a first hydraulic lever; 32. a second hydraulic rod; 61. a limiting block; 62. a slide rail; 63. a slider; 64. a spring; 65. a chute; 66. and (4) connecting the blocks.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in fig. 1-4, the utility model provides a lifting hydraulic device capable of preventing gravity from falling.

In this embodiment, including main part 1, the top of main part 1 is provided with damping device 2, be provided with hydraulic means 3 in the top of main part 1, the inside of main part 1 is provided with pressure block 4, the both ends of pressure block 4 are provided with bearing wall 8, be provided with in the both sides of main part 1 and prevent falling device 6 certainly, the bottom of main part 1 is provided with supporting leg 7, the below of pressure block 4 and be provided with base 5 at the lower extreme of main part 1, the upper end of pressure block 4 and hydraulic means 3's lower extreme fixed connection, prevent falling device 6 certainly and set up the both sides at bearing wall 8, hydraulic means 3 is including second hydraulic stem 32, the inside movable mounting of second hydraulic stem 32 has first hydraulic stem 31.

In this embodiment, the upper end of the pressure block 4 is fixedly connected to the lower end of the hydraulic device 3, and the pressure block 4 can be raised and lowered by the hydraulic device 3.

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the utility model provides a technical solution: preferably, damping device 2 is including damping wheel 21, the inside winding of damping wheel 21 has connecting band 22, the middle part of damping wheel 21 is provided with friction shaft 23, damping wheel 21's lower extreme fixed mounting has support frame 24, the one end that damping wheel 21 was kept away from to connecting band 22 is provided with tie point 25, tie point 25 lower extreme fixedly connected with atress piece 26, damping wheel 21's quantity is two, through connecting band 22 swing joint between the damping wheel 21, connecting band 22 passes through tie point 25 and atress piece 26 fixed connection, damping device 2 passes through support frame 24 fixed mounting on the top of main part 1, atress piece 26 fixed mounting is on pressure piece 4.

In this embodiment, a connecting band 22 is connected between damping wheels 21 of the damping device 2, and an inner central axis of the damping wheel 21 is a friction shaft 23, so that the resistance to rotation is larger, and the constant-speed rotation is easy to maintain, a stress block 26 is connected to the end of the connecting band 22, the stress block 26 is installed on the pressure block 4, the pressure block 4 and the damping wheel 21 are movably connected through the connecting band 22, the pressure block 4 rises and falls under the action of the damping device 2, and only the constant-speed and low-speed states can be maintained, and sudden falling caused by the failure of a hydraulic system under the action of gravity is avoided.

Example 3

As shown in fig. 1-4, on the basis of embodiment 1, the utility model provides a technical solution: preferably, prevent device 6 from weighing down including slide rail 62, slide rail 62's top is provided with stopper 61, slide rail 62's sliding surface connection has slider 63, slider 63's lower extreme and the surface cover at slide rail 62 are equipped with spring 64, slider 63's one end fixedly connected with connecting block 66, slider 63's one end and 4 fixed connection of pressure piece are kept away from to connecting block 66, spout 65 has been seted up to bearing wall 8's inside, connecting block 66 joint is in spout 65's inside, pressure piece 4 passes through connecting block 66 and slider 63 fixed connection, pressure piece 4 passes through connecting block 66 movable mounting in spout 65, pressure piece 4 passes through slider 63 movable mounting on slide rail 62.

In this embodiment, the pressure block 4 of the anti-falling device 6 is movably mounted in the sliding groove 65 through the connecting block 66, the pressure block 4 is movably mounted on the sliding rail 62 through the sliding block 63, and the spring 64 is arranged below the sliding block 63, when the pressure block 4 is driven by the hydraulic device 3 to rise to the fixed position, even if the hydraulic device 3 does not apply a reaction force of gravity to the pressure block 4, the pressure block 4 can be kept at a certain height by the action force of the spring 64, and no danger is generated due to the gravity falling of the pressure block 4.

The working principle of the anti-gravity self-falling hydraulic lifting system is described in detail below.

As shown in fig. 1-4, the upper end of the pressure block 4 is fixedly connected with the lower end of the hydraulic device 3, the pressure block 4 can rise and fall through the hydraulic device 3, the connecting belt 22 is connected between the damping wheels 21 of the damping device 2, the inner center shaft of the damping wheel 21 is the friction shaft 23, the resistance is higher when the damping wheels 21 rotate, and the constant-speed rotation is easy to maintain, the end of the connecting belt 22 is connected with the stress block 26, the stress block 26 is installed on the pressure block 4, the pressure block 4 is movably connected with the damping wheels 21 through the connecting belt 22, the pressure block 4 rises and falls under the action of the damping device 2, and can only maintain the constant-speed and low-speed states, and cannot suddenly fall under the action of gravity due to the failure of the hydraulic system, the pressure block 4 of the anti-falling device 6 is movably installed in the chute 65 through the connecting block 66, the pressure block 4 is movably installed on the sliding rail 62 through the sliding block 63, the spring 64 is arranged below the sliding block 63, when the pressure block 4 is driven by the hydraulic device 3 to rise to the fixed position, even if the hydraulic device 3 does not exert the reaction force of gravity on the pressure block 4, the pressure block 4 can also maintain a certain height and can not fall due to the action of gravity, and the danger cannot be generated by the gravity.

The present invention has been described in general terms, but it will be apparent to those skilled in the art that modifications and improvements can be made based on the present invention. Therefore, modifications or improvements without departing from the spirit of the invention are within the scope of the invention.

Claims

1. The utility model provides a prevent gravity from drop lift hydraulic means, includes main part (1), its characterized in that: the damping device comprises a main body (1), a damping device (2) is arranged at the top end of the main body (1), a hydraulic device (3) is arranged in the top of the main body (1), a pressure block (4) is arranged in the main body (1), bearing walls (8) are arranged at two ends of the pressure block (4), self-falling prevention devices (6) are arranged in two sides of the main body (1), supporting legs (7) are arranged at the bottom end of the main body (1), a base (5) is arranged below the pressure block (4) and at the lower end of the main body (1), and the damping device (2) comprises a damping wheel (21); the self-falling prevention device (6) comprises a sliding rail (62).

2. The lifting hydraulic device capable of preventing gravity self-falling as claimed in claim 1, characterized in that: the upper end of the pressure block (4) is fixedly connected with the lower end of the hydraulic device (3), and the self-dropping prevention devices (6) are arranged on two sides of the bearing wall (8).

3. The lifting hydraulic device capable of preventing gravity self-falling as claimed in claim 1, characterized in that: the hydraulic device (3) comprises a second hydraulic rod (32), and a first hydraulic rod (31) is movably arranged in the second hydraulic rod (32).

4. The lifting hydraulic device capable of preventing gravity self-falling according to claim 1, characterized in that: the inside winding of damping wheel (21) has connecting band (22), the middle part of damping wheel (21) is provided with friction axle (23), the lower extreme fixed mounting of damping wheel (21) has support frame (24), the one end that damping wheel (21) were kept away from in connecting band (22) is provided with tie point (25), tie point (25) lower extreme fixedly connected with atress piece (26).

5. The lifting hydraulic device capable of preventing gravity self-falling as claimed in claim 4, characterized in that: the quantity of damping wheel (21) is two, through connecting band (22) swing joint between damping wheel (21), connecting band (22) are through tie point (25) and atress piece (26) fixed connection, damping device (2) are through the top of support frame (24) fixed mounting in main part (1), atress piece (26) fixed mounting is on pressure piece (4).

6. The lifting hydraulic device capable of preventing gravity self-falling as claimed in claim 1, characterized in that: the top of slide rail (62) is provided with stopper (61), the surperficial sliding connection of slide rail (62) has slider (63), the lower extreme of slider (63) and the surface cover at slide rail (62) are equipped with spring (64), the one end fixedly connected with connecting block (66) of slider (63), the one end and the pressure piece (4) fixed connection of slider (63) are kept away from in connecting block (66), spout (65) have been seted up to the inside of bearing wall (8), connecting block (66) joint is in the inside of spout (65).

7. The lifting hydraulic device capable of preventing gravity self-falling as claimed in claim 6, characterized in that: pressure block (4) pass through connecting block (66) and slider (63) fixed connection, pressure block (4) pass through connecting block (66) movable mounting in spout (65), pressure block (4) pass through slider (63) movable mounting on slide rail (62).