Flow-controllable reversing valve convenient to adjust

Abstract

The utility model discloses a flow controllable type reversing valve convenient to adjust, and relates to the technical field of reversing valve equipment, the flow controllable type reversing valve convenient to adjust comprises a connecting valve body, a first connector, a negative pressure adjusting rod, a fifth connector and a fourth connector, the adjusting rod is installed on the left side of the connecting valve body, and the first connector is arranged on the upper surface of the adjusting rod; a second connector is arranged on the right side of the first connector, a third connector is installed at the bottom of the connecting valve body, a fourth connector is arranged on the right side of the third connector, and a fifth connector is installed on the right side of the fourth connector. The negative pressure adjusting rod is arranged on the connecting valve body, huge downward pressure can be generated at the position of the semicircular protrusion of the negative pressure adjusting rod and the connecting valve body through negative pressure suction, the negative pressure adjusting rod is adsorbed to the connecting valve body to form balance, the pure mechanical structure can ensure that equipment does not depend on electric power or other power sources, the mechanical stability is better, flow is accurately controlled, and the service life of the equipment is prolonged. And the real-time flow is convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of reversing valve equipment, in particular to a flow controllable reversing valve which is easy to adjust. Background Art

[0002] The reversing valve is a directional control valve with more than two flow forms and more than two oil ports. It is a valve that realizes the communication, cutting and reversing of hydraulic oil flow, as well as pressure unloading and sequential action control. The directional control valve relies on the relative movement of the valve core and the valve body. There are two types of rotary valves and sliding valves. According to the number of working positions where the valve core stays in the valve body, it can be divided into two-position and three-position; according to the number of oil circuits connected to the valve body, it can be divided into two-way, three-way, four-way and six-way; the ways to operate the valve core movement include manual, motorized, electric, hydraulic, electro-hydraulic and other types. However, the existing reversing valves have these shortcomings, such as:

[0003] Publication No.: CN208268473U describes a reversing valve, the device comprising: a valve body, a plurality of chambers are defined inside the valve body, and the plurality of chambers are respectively connected to respective ports; a valve core, the valve core having a valve core body and a first boss and a second boss extending radially outward from the valve core body; an electromagnetic actuator, the electromagnetic actuator being located at one end or both ends of the valve core, the valve core being able to move inside the valve body under the drive of the electromagnetic actuator, and controlling the connection or disconnection between the plurality of chambers through the first boss and the second boss; wherein the outer side surfaces of the first boss and the second boss form a first conical surface or an arc surface inclined from the first boss and the second boss toward the valve core body, and since the device adopts an electromagnetically driven valve core to control the on-off of the pipeline, it requires electric drive when in use, which is not convenient to use in devices without electric power supply, and it is difficult for electromagnetic control to throttle the valve core to control the flow rate, and it is easy to cause a sudden increase in pipeline pressure due to flow difference, causing safety problems. Utility Model Content

[0004] The purpose of the utility model is to provide an easily adjustable flow-controllable reversing valve, so as to solve the problem proposed in the above background technology that the equipment on the existing market uses an electromagnetically driven valve core to control the on-off of the pipeline, which requires electric drive when in use and is not convenient to use in equipment without power supply, and the electromagnetic control is difficult to throttle the valve core to control the flow, which may easily cause a sudden increase in pipeline pressure due to the flow difference, causing safety problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flow controllable reversing valve that is easy to adjust, comprising a connecting valve body, a first joint, a negative pressure regulating rod, a fifth joint and a fourth joint;

[0006] A negative pressure regulating rod is installed on the left side of the connecting valve body, a first joint is provided on the upper surface of the connecting valve body, a second joint is provided on the right side of the first joint, a third joint is installed on the bottom of the connecting valve body, a fourth joint is provided on the right side of the third joint, and a fifth joint is installed on the right side of the fourth joint, a spring is provided on the right side of the connecting valve body, a limiting slide rod is installed in the spring, a flow blocking plug is installed on the outer ring of the limiting slide rod, and a sealing ring is provided on the left side of the limiting slide rod, and a negative pressure regulating rod is installed on the left side of the sealing ring.

[0007] As a preferred technical solution of the utility model, the upper surface of the connecting valve body is fixedly connected to the first joint, the second joint on the right side of the first joint is fixedly connected to the upper surface of the connecting valve body, the fourth joint is fixedly connected below the center line of the bottom of the connecting valve body, the left side of the fourth joint is fixedly connected to the third joint, and the right side of the fourth joint is fixedly connected to the fifth joint;

[0008] By adopting the above technical solution, the device places multiple joints on the upper and lower sides of the connecting valve body, thereby facilitating the linear conduction of the internal fluid pressure and reducing the pressure loss.

[0009] As a preferred technical solution of the utility model, a lumen is provided inside the connecting valve body, and a spring is fixedly connected to the right side of the connecting valve body, a limit slide rod is slidably connected inside the spring, three flow blocking plugs are fixedly connected to the outer ring of the limit slide rod, the left side of the limit slide rod passes through the sealing ring, and the left side of the limit slide rod is pressed against the lower side of the negative pressure regulating rod;

[0010] By adopting the above technical solution, the device can achieve connectivity between various lines through three evenly installed flow control plugs, and the fixed connecting spring on the right side of the connecting valve body can ensure the balance of internal pressure and prevent the negative pressure regulating rod from deviating.

[0011] As a preferred technical solution of the utility model, the interior of the negative pressure regulating rod is hollow and divided into two sections with different thicknesses, and a semicircular protrusion is provided at the installation position of the negative pressure regulating rod connected to the valve body, the size of the upper half of the negative pressure regulating rod is half of the lower half, and the bottom of the upper half of the negative pressure regulating rod is provided with an arc surface structure that fits the semicircular protrusion connected to the valve body, and a rubber gasket is installed at the upper half of the negative pressure regulating rod and the position where it is connected to the valve body;

[0012] By adopting the above technical solution, the device can generate huge downward force at the semicircular raised position of the negative pressure regulating rod and the connecting valve body through the two-section split structure of the negative pressure regulating rod and the use of negative pressure suction, so as to adsorb the negative pressure regulating rod to the connecting valve body to form a balance.

[0013] As a preferred technical solution of the utility model, the sealing plates are fixed by bolts on both sides of the connecting valve body, and the size of the sealing plates is the same as that of the connecting valve body, and the thickness is consistent with the inner wall of the connecting valve body.

[0014] By adopting the above technical solution, the device fixes the sealing plate by bolts on both sides of the connecting valve body. The bolt fixing method can facilitate the maintenance and replacement of the connecting valve body components, and the sealing plate can be switched to a solenoid valve to provide more adjustment and power solutions, thereby improving the expandability of the equipment.

[0015] As a preferred technical solution of the utility model, the negative pressure regulating rod is fixedly connected to the side of the connection point of the connecting valve body at the bottom of the negative pressure regulating rod, and the regulating gear is connected to the baffle plate at the bottom through meshing, and the baffle plate is provided with two holes corresponding to the first joint and the second joint;

[0016] By adopting the above technical solution, the device can further limit the flow rate during operation by arranging a synchronously propelled flow-blocking slide plate above the flow-blocking plug and transmitting the flow by adjusting the gear meshing.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The device uses a two-section split structure of the negative pressure regulating rod and negative pressure suction to generate huge downward pressure at the semicircular convex position of the negative pressure regulating rod and the connecting valve body, and adsorbs the negative pressure regulating rod to the connecting valve body to form a balance. The purely mechanical structure can ensure that the equipment does not rely on electricity or other power sources, and the machine has better stability and precise control of the flow, which is convenient for adjusting the real-time flow;

[0019] 2. The equipment fixes the sealing plate by bolts on both sides of the connecting valve body. The bolt fixing method can facilitate the maintenance and replacement of the connecting valve body, and the sealing plate can be switched to a solenoid valve, providing more adjustment and power solutions, and improving the expandability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a left-side perspective structural diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from the left side;

[0022] Figure 3 This is a left-side perspective structural diagram of the utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from the right side;

[0024] Figure 5 This is a schematic diagram of the internal left-side stereoscopic structure of the utility model;

[0025] Figure 6 It is a schematic diagram of the internal three-dimensional structure of the utility model when viewed from the left side.

[0026] In the figure: 1, connecting valve body; 2, first joint; 3, negative pressure regulating rod; 4, fifth joint; 5, limiting slide rod; 6, third joint; 7, spring; 8, choke plug; 9, sealing ring; 10, second joint; 11, fourth joint; 12, adjusting gear; 13, choke slide plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-6 , the technical solution of the utility model: a flow controllable reversing valve that is easy to adjust, including a connecting valve body 1, a first joint 2, a negative pressure regulating rod 3, a fifth joint 4, a limit slide bar 5, a third joint 6, a spring 7, a choke 8, a sealing ring 9, a second joint 10, a fourth joint 11, an adjusting gear 12, and a choke slide 13;

[0029] A negative pressure regulating rod 3 is installed on the left side of the connecting valve body 1, a first joint 2 is arranged on the upper surface of the connecting valve body 1, a second joint 10 is arranged on the right side of the first joint 2, the upper surface of the connecting valve body 1 is fixedly connected to the first joint 2, the second joint 10 on the right side of the first joint 2 is fixedly connected to the upper surface of the connecting valve body 1, a fourth joint 11 is fixedly connected below the center line of the bottom of the connecting valve body 1, the third joint 6 is fixedly connected to the left side of the fourth joint 11, and the fifth joint 4 is fixedly connected to the right side of the fourth joint 11. The device places a plurality of joints on the upper and lower sides of the connecting valve body 1 respectively, so as to facilitate the linear conduction of the internal fluid pressure and reduce the pressure loss. A third joint 6 is installed at the bottom of the connecting valve body 1, a fourth joint 11 is arranged on the right side of the third joint 6, and the inside of the connecting valve body 1 A lumen is opened, and a spring 7 is fixedly connected to the right side of the connecting valve body 1, a limiting slide rod 5 is slidably connected inside the spring 7, three choke plugs 8 are fixedly connected to the outer ring of the limiting slide rod 5, a sealing ring 9 passes through the left side of the limiting slide rod 5, and the left side of the limiting slide rod 5 is pressed against the lower side of the negative pressure regulating rod 3. The device can achieve communication between various lines through three evenly installed choke plugs 8, and the spring 7 is fixedly connected to the right side of the connecting valve body 1 to ensure the balance of internal pressure and prevent the negative pressure regulating rod 3 from deviating, and a fifth joint 4 is installed on the right side of the fourth joint 11, a spring 7 is arranged on the right side of the connecting valve body 1, a limiting slide rod 5 is installed in the spring 7, a choke plug 8 is installed on the outer ring of the limiting slide rod 5, and a sealing ring 9 is arranged on the left side of the limiting slide rod 5. A negative pressure regulating rod 3 is installed on the left side of 9. The interior of the negative pressure regulating rod 3 is hollow and divided into two sections with different thicknesses. A semicircular protrusion is set on the installation position of the negative pressure regulating rod 3 connected to the valve body 1. The size of the upper half of the negative pressure regulating rod 3 is half of the lower half, and the bottom of the upper half of the negative pressure regulating rod 3 is set to an arc structure that fits the semicircular protrusion connected to the valve body 1, and a rubber gasket is installed on the upper half of the negative pressure regulating rod 3 and the position where the valve body 1 is connected. The device uses a two-section split structure of the negative pressure regulating rod 3 and uses negative pressure suction to generate huge downward pressure at the semicircular protrusion position where the negative pressure regulating rod 3 is connected to the valve body 1, so that the negative pressure regulating rod 3 is adsorbed on the connection valve body 1 to form a balance, and the sealing plates are fixed with bolts on both sides of the connecting valve body 1. The size of the sealing plates is The connecting valve body 1 has the same thickness as the inner wall of the connecting valve body 1. The device fixes the sealing plate by bolts on both sides of the connecting valve body 1. The bolt fixing method can facilitate the maintenance and replacement of components of the connecting valve body 1, and the sealing plate can be switched to a solenoid valve to provide more adjustment and power solutions, thereby improving the expandability of the equipment. The negative pressure adjustment rod 3 is fixedly connected to the side of the connection with the connecting valve body 1 below, and the adjusting gear 12 is connected to the flow-blocking plate 13 by meshing below the adjusting gear 12. The flow-blocking plate 13 has two holes corresponding to the first joint 2 and the second joint 10. The device further limits the flow rate during operation by arranging a synchronously propelled flow-blocking plate 13 above the flow-blocking plug 8 and transmitting the flow by meshing the adjusting gear 12.

[0030] Working principle: When using this easy-to-adjust flow-controllable reversing valve, first connect the pipeline to each interface, select the power mode according to the actual scenario, when external power is not required or cannot be connected, it can be adjusted through the negative pressure adjustment rod 3. When the negative pressure adjustment rod 3 is on the left, the third joint 6 is closed, and the first joint 2 is connected to the fourth joint 11, and the second joint 10 is connected to the fifth joint 4. The upper part of the negative pressure adjustment rod 3 will shrink with the lower part under the action of the internal cylinder to fix the rubber pad at the bottom of the upper part and the protruding position of the connecting valve body 1 by friction. When switching is required, pull the negative pressure adjustment rod 3 to the right by hand. During the pulling process The upper part of the medium negative pressure regulating rod 3 will form downward pressure under the action of the internal cylinder, and stable friction will be formed between the rubber pad at the bottom of the upper part of the negative pressure regulating rod 3 and the connecting valve body 1, and the negative pressure regulating rod 3 will press against the left side of the limiting slide bar 5, moving the choke plug 8 to the right and compressing the spring 7 at the same time, and the adjusting gear 12 at the fixed position of the negative pressure regulating rod 3 and the connecting valve body 1 will drive the choke slide plate 13 to the right, control the opening of the first joint 2 and the second joint 10, and limit the flow, and when the negative pressure regulating rod 3 is on the right side, the first joint 2 is connected to the third joint 6, the second joint 10 is connected to the fourth joint 11, and the fifth joint 4 is closed.

[0031] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow controllable reversing valve that is easy to adjust, comprising a connecting valve body (1), a first joint (2), a negative pressure regulating rod (3), a fifth joint (4) and a fourth joint (11), characterized in that: A negative pressure regulating rod (3) is installed on the left side of the connecting valve body (1); a first joint (2) is provided on the upper surface of the connecting valve body (1); a second joint (10) is provided on the right side of the first joint (2); a third joint (6) is installed on the bottom of the connecting valve body (1); a fourth joint (11) is provided on the right side of the third joint (6); and a fifth joint (4) is installed on the right side of the fourth joint (11); a spring (7) is provided on the right side of the connecting valve body (1); a limit slide rod (5) is installed in the spring (7); a flow blocking plug (8) is installed on the outer ring of the limit slide rod (5); a sealing ring (9) is provided on the left side of the limit slide rod (5); a negative pressure regulating rod (3) is installed on the left side of the sealing ring (9); an adjusting gear (12) is installed below the negative pressure regulating rod (3); and a flow blocking slide plate (13) is provided below the adjusting gear (12).

2. The flow controllable reversing valve according to claim 1 is characterized in that: The upper surface of the connecting valve body (1) is fixedly connected to the first joint (2); the second joint (10) on the right side of the first joint (2) is fixedly connected to the upper surface of the connecting valve body (1); the fourth joint (11) is fixedly connected below the bottom center line of the connecting valve body (1); the left side of the fourth joint (11) is fixedly connected to the third joint (6); and the right side of the fourth joint (11) is fixedly connected to the fifth joint (4).

3. The flow controllable reversing valve according to claim 2 is characterized in that: A tubular cavity is provided inside the connecting valve body (1), and a connecting spring (7) is fixedly connected to the right side of the connecting valve body (1). A limiting slide bar (5) is slidably connected inside the spring (7). The outer ring of the limiting slide bar (5) is fixedly connected to three flow blocking plugs (8). The left side of the limiting slide bar (5) passes through a sealing ring (9), and the left side of the limiting slide bar (5) is pressed against the lower side of the negative pressure regulating rod (3).

4. The flow controllable reversing valve according to claim 3 is characterized in that: The interior of the negative pressure regulating rod (3) is a negative pressure vacuum chamber divided into two sections of different thicknesses, and a semicircular protrusion is provided at the installation position of the negative pressure regulating rod (3) connected to the valve body (1), the size of the upper half of the negative pressure regulating rod (3) is half of the lower half, and the bottom of the upper half of the negative pressure regulating rod (3) is provided with an arc surface structure that fits the semicircular protrusion connected to the valve body (1), and a rubber gasket is installed at the upper half of the negative pressure regulating rod (3) and the position where it is connected to the valve body (1).

5. The flow controllable reversing valve according to claim 1 is characterized in that: The sealing plates are fixed by bolts on both sides of the connecting valve body (1); the size of the sealing plates is the same as that of the connecting valve body (1) and the thickness is consistent with the inner wall of the connecting valve body (1).

6. The flow controllable reversing valve according to claim 1, characterized in that: The negative pressure regulating rod (3) is fixedly connected to the side of the connection point with the connecting valve body (1) at the bottom thereof, and the regulating gear (12) is connected to the flow-blocking plate (13) at the bottom thereof by meshing, and the flow-blocking plate (13) is provided with two holes corresponding to the first joint (2) and the second joint (10).

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