Special-structure balance control lock for oil cylinder

Abstract

The utility model discloses a special-structure balance control lock for an oil cylinder, which belongs to the technical field of balance control locks and comprises a valve body, a first circular boss and a second circular boss. The hydraulic cylinder is composed of a balance valve, a hydraulic control one-way valve, a two-way lock and a valve body, the balance valve and the hydraulic control one-way valve form a set for a first hydraulic cylinder on one side, the two-way lock is used for a second hydraulic cylinder on the other side, and round bosses on the two sides of the valve body have the internal oil channel communication function and can also be fixedly installed; the second circular boss is welded with the second hydraulic cylinder, high machining precision requirements are not needed, complex processes are not needed, meanwhile, leakage points can be reduced, the structural size is smaller, the hydraulic cylinder is more suitable for being used by special oil cylinders, and the overall design of the hydraulic cylinder is accurate in balance, reliable in control and capable of bearing unstable loads or working under extreme conditions. And the stability and the safety of the oil cylinder are ensured by only depending on self sealing and oil path control of the oil cylinder.

Description

TECHNICAL FIELD

[0001] The utility model relates to balance control lock technical field, more specifically, relate to a special structure balance control lock for oil cylinder. BACKGROUND

[0002] The special structure balance control lock for oil cylinder is an important device specially designed to ensure the balance and stability of the oil cylinder during movement, and is particularly suitable for application scenarios requiring high precision and high reliability, such as engineering machinery, hoisting equipment, medical equipment, etc.

[0003] Based on the above, the present inventors found that the existing oil cylinder balance control lock is mostly connected by pipes or connected by plate sealing rings. The pipe connection has the following problems: dispersed structure, large space occupation in the hydraulic system, pipe intersection, numerous joints, inconvenient assembly and disassembly, difficult maintenance, easy oil leakage and air entry at the pipe joint, easy vibration and noise, and high risk of load loss if pipe explosion occurs. The plate connection has the following problems: each oil port is arranged on the same installation plane and has a connecting screw hole, high requirements for the valve body smoothness and flatness, and easy oil leakage. Therefore, in view of the above problems, the existing structure is improved to provide a special structure balance control lock for oil cylinder, so as to achieve more practical value. SUMMARY

[0004] 1. Technical problem to be solved

[0005] In view of the problems in the prior art, the purpose of the utility model is to provide a special structure balance control lock for oil cylinder, which can effectively avoid the safety hazards caused by hydraulic pipe explosion, reduce the leakage points, and has smaller structure size, and is more suitable for special oil cylinder use.

[0006] 2. Technical scheme

[0007] To solve the above problems, the utility model adopts the following technical scheme.

[0008] A special structure balance control lock for oil cylinder, comprising a valve body, a circular boss one and a circular boss two, the circular boss one and the circular boss two are respectively installed on the upper and lower parts of the valve body, the side surface of the valve body is fixedly connected with a mounting plate, the inner side of the mounting plate is provided with a magnetic suction port, the magnetic suction port is magnetically connected with a anti-bump seat one and a anti-bump seat two on one side, the side of the valve body away from the anti-bump seat two is installed with a bidirectional lock, the bidirectional lock is provided with a hydraulic control check valve on one side, the side of the valve body away from the anti-bump seat one is installed with a balance valve, the side of the anti-bump seat one is fixedly connected with a buckle, the upper and lower parts of the buckle are respectively provided with rubber pads one and two.

[0009] Further, the inside of the valve body is provided with a complex oil passage, and the circular boss one and the circular boss two are symmetrically arranged on the upper and lower parts of the valve body.

[0010] Further, the circular boss one and the circular boss two are respectively welded with the external hydraulic cylinder one and the hydraulic cylinder two.

[0011] Further, the anti-knock seat one and the anti-knock seat two are consistent in structure, and a magnet is arranged at the connection between the anti-knock seat one and the anti-knock seat two and the magnetic suction port.

[0012] Further, the mounting plate is provided with two groups, and the inner side of each group of mounting plates is provided with a plurality of groups of magnetic suction ports which are equidistantly distributed.

[0013] Further, the hydraulic control check valve is used for the rod cavity of the hydraulic cylinder one, the balance valve is used for the rodless cavity of the hydraulic cylinder one, and the bidirectional lock is used for the other side hydraulic cylinder two.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The scheme is composed of a balance valve, a hydraulic control check valve, a bidirectional lock and a valve body, the balance valve and the hydraulic control check valve are used for one side hydraulic cylinder one, the bidirectional lock is used for the other side hydraulic cylinder two, the circular boss on the two sides of the valve body has the internal oil passage communication function and can be used for fixed installation, the circular boss one is welded with the hydraulic cylinder one, and the circular boss two is welded with the hydraulic cylinder two, so that high machining precision requirement is not needed, complex process is not needed, leakage points can be reduced, the structure size is smaller, and the scheme is more suitable for special cylinder use, the overall design of the cylinder is accurate in balance, reliable in control, can bear unstable load or work under extreme conditions, and the stability and safety of the cylinder can be ensured by only relying on the sealing and oil passage control of the cylinder itself. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic view of the utility model;

[0018] Figure 2 It is a schematic view of the balance control lock of the utility model;

[0019] Figure 3 It is a plan view of the utility model;

[0020] Figure 4 It is a top view of the utility model.

[0021] Explanation of reference numerals in the drawing:

[0022] 1, valve body; 2, round boss one; 3, round boss two; 4, anti knock seat one; 5, anti knock seat two; 6, mounting plate; 7, magnetic suction port; 8, two-way lock; 9, hydraulic control check valve; 10, balance valve; 11, rubber pad one; 12, buckle; 13, rubber pad two. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Embodiment:

[0025] Please refer to Figures 1-4 A special structure balance control lock for oil cylinder, comprising a valve body 1, a round boss one 2 and a round boss two 3, the round boss one 2 and the round boss two 3 are used for welding with an external hydraulic cylinder one and a hydraulic cylinder two respectively, the round boss one 2 and the round boss two 3 are installed on the upper and lower parts of the valve body 1 respectively, the side surface of the valve body 1 is fixedly connected with a mounting plate 6 respectively, the inner side of the mounting plate 6 is provided with a magnetic suction port 7, the mounting plate 6 and the magnetic suction port 7 are used for installing an anti knock seat one 4 and an anti knock seat two 5 respectively, one side of the magnetic suction port 7 is magnetically connected with the anti knock seat one 4 and the anti knock seat two 5 respectively, the anti knock seat one 4 and the anti knock seat two 5 are used for preventing the valve body 1 from being knocked, one side of the valve body 1 away from the anti knock seat two 5 is installed with a two-way lock 8, the single valve core has the function of the two-way lock 8, the structure is compact, can stabilize and protect the load, and has fast response, one side of the two-way lock 8 is provided with a hydraulic control check valve 9, the hydraulic lock can effectively maintain pressure and prevent leakage, one side of the valve body 1 away from the anti knock seat one 4 is installed with a balance valve 10, the balance valve 10 is used for the rodless cavity of the hydraulic cylinder one, by setting the balance valve 10, the over-speed drop of the working mechanism under the load can be prevented, when the system suddenly loses pressure, the function of the hydraulic lock is played, the heavy object is kept stationary, and the out-of-control phenomenon is avoided, at the same time, one side of the anti knock seat one 4 is fixedly connected with a buckle 12, the upper and lower parts of the buckle 12 are provided with a rubber pad one 11 and a rubber pad two 13 respectively.

[0026] Please refer to Figure 1 and Figure 2 The inside of the valve body 1 is provided with a complex oil passage, the round boss one 2 and the round boss two 3 are symmetrically arranged on the upper and lower parts of the valve body 1, and the complex oil passage can be used for realizing the flow direction control of hydraulic oil.

[0027] Please refer to Figure 1 and Figure 2, the circular boss one 2 and the circular boss two 3 are welded with the external hydraulic cylinder one and the hydraulic cylinder two respectively, by setting the circular boss one 2 and the circular boss two 3, both of which have the oil channel communication function and can be used as fixed installation, the circular boss one 2 is welded with the hydraulic cylinder one, and the circular boss two 3 is welded with the hydraulic cylinder two.

[0028] Referring to Figure 1 and Figure 2 , the anti-bump seat one 4 and the anti-bump seat two 5 have the same structure, and a magnet is installed at the connection between the anti-bump seat one 4 and the anti-bump seat two 5 and the magnetic suction port 7, the magnet is magnetically connected with the magnetic suction port 7, and the magnet and the magnetic suction port 7 can quickly disassemble the anti-bump seat one 4 and the anti-bump seat two 5.

[0029] Referring to Figure 1 and Figure 2 , the mounting plate 6 is provided with two groups, and each group of the mounting plate 6 is provided with a plurality of groups of equidistantly distributed magnetic suction ports 7, and the magnetic suction ports 7 can be used to install the anti-bump seat one 4 and the anti-bump seat two 5.

[0030] Referring to Figure 3 and Figure 4 , the hydraulic control one-way valve 9 is used for the rod cavity of the hydraulic cylinder one, the hydraulic lock can effectively maintain pressure and prevent leakage, the balance valve 10 is used for the rodless cavity of the hydraulic cylinder one, the balance valve 10 can prevent the working mechanism from producing overspeed drop under load, when the system suddenly loses pressure, the hydraulic lock plays a role, so that the heavy object remains stationary, avoiding the out-of-control phenomenon, at the same time, when the load pressure exceeds the set value, the overflow function of the balance valve 10 will be opened to prevent the hydraulic actuator from being damaged by overpressure, and the bidirectional lock 8 is used for the other side of the hydraulic cylinder two, the single valve core has the function of the bidirectional lock 8, the structure is compact, can stabilize and protect the load, and responds quickly.

[0031] In use: the balance safety lock is composed of the balance valve 10, the hydraulic control one-way valve 9, the bidirectional lock 8 and the valve body 1, the balance valve 10 and the hydraulic control one-way valve 9 are used for one side of the hydraulic cylinder one, the bidirectional lock 8 is used for the other side of the hydraulic cylinder two, the two circular bosses of the valve body 1 have the internal oil channel communication function and can be used as fixed installation, the circular boss one 2 is welded with the hydraulic cylinder one, and the circular boss two 3 is welded with the hydraulic cylinder two, without high machining precision requirement and complex process, while reducing the leakage point, the size is smaller, more suitable for special oil cylinder use, the overall design of the oil cylinder is balanced accurately, reliable control, can bear unstable load or work in extreme conditions, and simply rely on the sealing and oil way control of the oil cylinder itself to ensure its stability and safety.

[0032] Finally should be explained is: in the description of the utility model, it is to be explained that, the term "vertical", "upper", "lower", "horizontal" and so on indicate the position relation or location relation is based on the position relation or location relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation structure and operation, therefore can not be understood as the limitation of the utility model.

[0033] In the description of the utility model, it is to be explained that, unless otherwise explicitly provided and limited, the term "set", "installation", "connected", "connection" should be broad understanding, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the above-mentioned terms in the utility model can be understood according to the specific meaning in the utility model.

[0034] The above is only the preferred specific embodiment of the utility model; but the protection scope of the utility model is not limited to this. Any skilled in the art within the technical range disclosed by the utility model, according to the technical scheme of the utility model and its improvement concept, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A special structure balance control lock for use on a hydraulic cylinder, comprising a valve body (1), a first circular boss (2) and a second circular boss (3), wherein the first circular boss (2) and the second circular boss (3) are respectively installed on the upper and lower parts of the valve body (1), characterized in that: Mounting plates (6) are fixedly connected to the sides of the valve body (1). Magnetic suction ports (7) are provided on the inner side of each mounting plate (6). Anti-collision seat 1 (4) and anti-collision seat 2 (5) are magnetically connected to one side of each magnetic suction port (7). A two-way lock (8) is installed on the side of the valve body (1) away from anti-collision seat 2 (5). A hydraulic control check valve (9) is provided on one side of the two-way lock (8). A balance valve (10) is installed on the side of the valve body (1) away from anti-collision seat 1 (4). A handle (12) is fixedly connected to one side of anti-collision seat 1 (4). Rubber pad 1 (11) and rubber pad 2 (13) are provided on the upper and lower parts of the handle (12).

2. A special structure balance control lock for use on a hydraulic cylinder according to claim 1, characterized in that: The valve body (1) has a complex oil passage inside, and the first circular boss (2) and the second circular boss (3) are symmetrically arranged on the upper and lower parts of the valve body (1).

3. A special structure balance control lock for use on a hydraulic cylinder according to claim 1, characterized in that: The circular boss one (2) and the circular boss two (3) are respectively welded to the external hydraulic cylinder one and the hydraulic cylinder two.

4. A special structure balance control lock for use on a hydraulic cylinder according to claim 1, characterized in that: The anti-collision seat one (4) and anti-collision seat two (5) have the same structure, and magnets are installed at the connection between anti-collision seat one (4) and anti-collision seat two (5) and magnetic suction port (7), and the magnets are magnetically connected to magnetic suction port (7).

5. A special structure balance control lock for use on a hydraulic cylinder according to claim 1, characterized in that: The mounting plate (6) is provided in two sets, and each set of mounting plates (6) has multiple sets of magnetic suction ports (7) that are evenly distributed on the inner side.

6. A special structure balance control lock for use on a hydraulic cylinder according to claim 3, characterized in that: The hydraulic control check valve (9) is used in the rod chamber of the hydraulic cylinder, the balance valve (10) is used in the rodless chamber of the hydraulic cylinder, and the two-way lock (8) is used in the other hydraulic cylinder.

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