Hydraulic multi-way reversing valve

Abstract

The hydraulic multi-way reversing valve comprises a main body assembly, the main body assembly comprises a valve body, a bearing rod and plugging blocks, the middle of the valve body is movably connected with the bearing rod, and the two sides and the middle of the bearing rod are fixedly connected with the plugging blocks; the sealing compensation assembly comprises a rubber ring, a mounting hole, a spring and a through hole, the mounting hole is formed in the plugging block, one side of the spring is fixedly connected to the position, behind the mounting hole, of the plugging block, the through hole is formed in the inner ring of the rubber ring in a penetrating mode, and the other end of the spring movably penetrates through the through hole in a penetrating mode. The rubber ring can deform, tight connection between the plugging block and the inner wall of the valve body can be achieved, efficient sealing performance is achieved, the spring can apply external force to the rubber ring, deformation of the rubber ring in the aging process is compensated, the sealing use effect of the rubber ring is prolonged, and the service life of the valve body is prolonged. And the sealing effect is further guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to multiway reversing valve technical field, in particular to hydraulic multiway reversing valve. BACKGROUND

[0002] Hydraulic multiway reversing valve is a kind of hydraulic element that multiple reversing valves are combined together.Its main function is to control the movement direction, speed and start, stop and other operations of multiple execution elements (such as hydraulic cylinder, hydraulic motor, etc.) in hydraulic system, and its working principle is that when the valve core is in the middle position, hydraulic oil can be unloaded or kept execution element static state through the oil way inside the valve body.When the valve core moves left or right, the communication state of oil port P (pressure oil port) and A, B oil ports (connected to different execution element oil chambers respectively) changes, and the communication state of T oil port (return oil port) and A, B oil ports also changes accordingly.If P is communicated with A, and B is communicated with T, then the execution element cavity connected with A port fills oil, and the other cavity returns oil, and the execution element starts to move in one direction;Conversely, when the valve core moves reversely, the execution element will move in the opposite direction.

[0003] In the existing multiway reversing valve, rubber pads are installed between the valve core and the valve body to maintain tightness, but the rubber pads are prone to aging and loosening after long-term use, which affects the tightness of the device, so a structure is needed to cope with the aging and loosening of the rubber pad to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing hydraulic multiway reversing valve to solve the problem of tightness of the existing multiway reversing valve, which installs rubber pads between the valve core and the valve body to maintain tightness, but the rubber pads are prone to aging and loosening after long-term use, which affects the tightness of the device.

[0005] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0006] The utility model is hydraulic multiway reversing valve, including:

[0007] Main body assembly, the main body assembly includes valve body, receiving rod and plugging block, the valve body middle part is movably connected with receiving rod, and the receiving rod two sides and middle part are fixedly connected with plugging block;

[0008] Sealing compensation assembly, the sealing compensation assembly includes rubber ring, mounting hole, spring and through hole, the mounting hole is arranged on the plugging block, the spring one side is fixedly connected at the rear part of the plugging block of mounting hole, the through hole is arranged in the inner ring of rubber ring, and the spring other end is movably inserted into the through hole.

[0009] Further, the mounting holes and the through holes are both four in number and are equidistantly arranged in the circumferential direction.

[0010] Further, the sealing compensation assembly further comprises an annular clamping groove, the outer ring of the plugging block is provided with the annular clamping groove, and the annular clamping groove movably connects the rubber ring.

[0011] Further, the thickness of the rubber ring is greater than the depth of the annular clamping groove.

[0012] Further, the force dispersion assembly comprises a mounting groove, a metal ring and a receiving hole, the side of the rubber ring is provided with the mounting groove, the mounting groove movably connects the metal ring, the receiving hole is arranged on the metal ring, and one side of the spring movably penetrates the receiving hole.

[0013] Further, the force dispersion assembly further comprises anti-skid lines, the inner and outer rings of the metal ring are provided with the anti-skid lines.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The rubber ring can be deformed, the tight connection between the plugging block and the inner wall of the valve body can be realized, and thus efficient sealing performance is realized; the spring can exert external force on the rubber ring, the deformation amount of the rubber ring during aging is compensated, the sealing use effect of the rubber ring is prolonged, and thus the sealing effect is ensured.

[0016] Based on the above beneficial effects, the metal ring can rigidly support the whole rubber ring, so that the original shape and size of the rubber ring are maintained, the deformation of the rubber ring is avoided, the external force exerted by the spring can be ensured to act on the whole rubber ring through the metal ring, and thus the rubber ring can better adhere to the sealing surface, and the reliability of the sealing is ensured. BRIEF DESCRIPTION OF DRAWINGS

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

[0018] Figure 1 It is the whole internal schematic diagram of the utility model;

[0019] Figure 2 It is the rubber ring connection schematic diagram of the utility model;

[0020] Figure 3 It is the metal ring connection schematic diagram of the utility model;

[0021] Figure 4 The internal schematic diagram of the rubber ring of the utility model.

[0022] In the drawings, the component list represented by each reference numeral is as follows:

[0023] 101, valve body; 102, receiving rod; 103, plugging block;

[0024] 201, rubber ring; 202, mounting hole; 203, spring; 204, through hole; 205, annular clamping groove;

[0025] 301, mounting groove; 302, metal ring; 303, receiving hole; 304, anti-skid pattern. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and understandable, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0027] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0028] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be described in further detail below with reference to the drawings.

[0029] Please refer to Figures 1-4 The embodiment is a hydraulic multi-way reversing valve, which comprises:

[0030] The main body assembly comprises a valve body 101, a receiving rod 102 and a plugging block 103, the receiving rod 102 is movably connected to the middle part of the valve body 101, and the plugging block 103 is fixedly connected to both sides and the middle part of the receiving rod 102.

[0031] The receiving rod 102 is used for connecting the plugging block 103, and the plugging block 103 is used for controlling the opening and closing of the flow port on the valve body 101.

[0032] The sealing compensation assembly comprises a rubber ring 201, a mounting hole 202, a spring 203 and a through hole 204, the mounting hole 202 is formed on the plugging block 103, one side of the spring 203 is fixedly connected to the rear part of the plugging block 103 at the mounting hole 202, the through hole 204 is formed through the inner ring of the rubber ring 201, and the other end of the spring 203 is movably inserted into the through hole 204.

[0033] The rubber ring 201 plays a sealing role, the installation hole 202 is provided, and one side connection of the spring 203 is ensured, the through hole 204 is provided, and the other side of the spring 203 is stably connected with the rubber ring 201, and the spring 203 plays a role of compensating the deformation amount.

[0034] The installation hole 202 and the through hole 204 are both four, and are equidistantly arranged in the circumferential direction;

[0035] The number of the installation hole 202 and the through hole 204 ensures the installation of the plurality of springs 203.

[0036] The sealing compensation assembly further comprises an annular clamping groove 205, and the annular clamping groove 205 is arranged on the outer circle of the blocking block 103 and movably connected with the rubber ring 201.

[0037] The annular clamping groove 205 ensures the connection of the rubber ring 201 with the blocking block 103.

[0038] The thickness of the rubber ring 201 is greater than the depth of the annular clamping groove 205.

[0039] The size of the above-mentioned components ensures that the rubber ring 201 protrudes from the surface of the blocking block 103, and further ensures that the rubber ring 201 smoothly plays a sealing role.

[0040] Further comprising a force dispersion assembly, the force dispersion assembly comprises an installation groove 301, a metal ring 302 and a receiving hole 303, the installation groove 301 is arranged on the side of the rubber ring 201, the metal ring 302 is movably connected in the installation groove 301, the receiving hole 303 is arranged on the metal ring 302, and one side of the spring 203 movably penetrates the receiving hole 303.

[0041] The installation groove 301 ensures the installation of the metal ring 302, and the metal ring 302 ensures the prevention of deformation of the rubber ring 201.

[0042] The force dispersion assembly further comprises an anti-skid line 304, and the anti-skid line 304 is arranged on the inner and outer circles of the metal ring 302.

[0043] The arrangement of the anti-skid line 304 can increase the connection firmness between the metal ring 302 and the rubber ring 201, and avoid the sliding of the metal ring 302 in the rubber ring 201.

[0044] Working principle: when the blocking block 103 moves in the valve body 101, the rubber ring 201 is deformed and compressed due to the protrusion of the rubber ring 201 from the surface of the blocking block 103, so that the sealing effect is realized, and the spring 203 on one side will exert an external force on the metal ring 302, and the metal ring 302 will transmit the force to the rubber ring 201. In this step, the deformation amount of the rubber ring 201 during aging can be compensated, thereby prolonging the sealing use effect of the rubber ring 201, and further ensuring the sealing effect, and the metal ring 302 can rigidly support the whole rubber ring 201, so that the original shape and size are maintained, and the rubber ring 201 is prevented from deforming, thereby helping the rubber ring 201 to better fit the sealing surface and ensuring the reliability of the sealing.

[0045] In the description of the present application, it should be further pointed out that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and does not limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. Hydraulic multi-way reversing valve, characterized in that: include: A main body component, the main body component comprising a valve body (101), a receiving rod (102) and a blocking block (103), wherein the middle portion of the valve body (101) is movably connected to the receiving rod (102), and both sides and the middle portion of the receiving rod (102) are fixedly connected to the blocking block (103); A sealing compensation component comprises a rubber ring (201), a mounting hole (202), a spring (203) and a through hole (204); the mounting hole (202) is provided on the blocking block (103); one side of the spring (203) is fixedly connected to the blocking block (103) at the rear of the mounting hole (202); the inner ring of the rubber ring (201) penetrates the through hole (204); and the other end of the spring (203) is movably inserted into the through hole (204).

2. The hydraulic multi-way reversing valve according to claim 1, characterized in that: The number of the mounting holes (202) and the through holes (204) are both four, and they are all opened at equal distances in the circumferential direction.

3. The hydraulic multi-way reversing valve according to claim 1, characterized in that: The sealing compensation component further comprises an annular groove (205), the outer ring of the blocking block (103) is provided with an annular groove (205), and the annular groove (205) is movably connected to the rubber ring (201).

4. The hydraulic multi-way reversing valve according to claim 1, characterized in that: The thickness of the rubber ring (201) is greater than the depth of the annular groove (205).

5. The hydraulic multi-way reversing valve according to claim 1, characterized in that: The force dispersing assembly further comprises a force dispersing assembly, the force dispersing assembly comprising a mounting groove (301), a metal ring (302) and a receiving hole (303), the mounting groove (301) being provided on the side of the rubber ring (201), the metal ring (302) being movably connected in the mounting groove (301), the receiving hole (303) being provided on the metal ring (302), and one side of the spring (203) being movably inserted into the receiving hole (303).

6. The hydraulic multi-way reversing valve according to claim 5, characterized in that: The force dispersing component further comprises anti-slip grooves (304), and the inner and outer rings of the metal ring (302) are both provided with anti-slip grooves (304).

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