Tubular flow equalizing valve

Abstract

The tubular flow equalizing valve comprises a valve body, a flow converging opening is formed in one side of the valve body, and a first flow dividing opening and a second flow dividing opening are formed in the other side of the valve body; valve elements are symmetrically installed in the valve body, and the opposite ends of the two valve elements are connected through a connecting rod. The outer side of the connecting rod is further sleeved with a first spring connected with the two valve elements. A throttling gasket is installed at the inner end, close to the connecting rod, of the valve element, and a throttling hole is formed in the throttling gasket. A spring seat is further installed in the valve element, and a second spring is installed between the spring seat and the outer end of the valve element. The two valve elements are connected through the connecting rod, the first spring and the second spring are arranged on the inner sides and the outer sides of the valve elements respectively to balance oil power on the two sides of the valve elements, oil is evenly distributed or collected, and stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a tubular flow equalizing valve. Background Art

[0002] The flow equalizing valve is one of the main valve types in the hydraulic system. It belongs to the flow dividing and collecting valve, and can also be called a synchronous valve. It is an independent hydraulic device product that integrates the functions of a liquid flow dividing valve and a flow collecting valve. The synchronization of the flow dividing and collecting valve is speed synchronization, that is, when two cylinders or multiple cylinders can bear different loads respectively, the flow dividing and collecting valve can be automatically adjusted through the sensitive components of the internal pressure and flow.

[0003] However, in actual use, the flow equalizing valve generally pushes the two valve cores to both sides through the power of oil inlet to achieve flow diversion or flow collection, but the synchronization stability between the two valve cores is not high, resulting in unstable flow synchronization at the final diversion port, affecting the use of hydraulic components. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a tubular flow balancing valve, which can ensure the synchronization stability of the valve body during flow balancing and reduce synchronization errors.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0006] A tubular flow equalizing valve comprises a valve body, one side of the valve body is provided with a confluence port, and the other side of the valve body is provided with a first diversion port and a second diversion port; valve cores are symmetrically installed in the valve body, and the opposite ends of the two valve cores are connected by a connecting rod; the outer side of the connecting rod is also provided with a first spring connected to the two valve cores respectively; a throttling gasket is installed at the inner end of the valve core close to the connecting rod, and a throttling hole is provided on the throttling gasket; a spring seat is also installed inside the valve core, and a second spring is installed between the spring seat and the outer end of the valve core.

[0007] In the above-mentioned tubular flow equalizing valve, the end of the valve core is slidably assembled with the connecting rod and is limited by a limiting nut.

[0008] The above-mentioned tubular flow equalizing valve has an oil hole connected to the confluence port at the inner end of the valve core, and an oil delivery hole connected to the first diversion port and the second diversion port at the middle of the valve core.

[0009] In the above-mentioned tubular flow equalizing valve, the ends of the valve body are respectively provided with end covers for sealing, and an O-ring for sealing is provided between the end cover and the valve body.

[0010] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model is as follows.

[0011] The utility model provides a tubular flow equalizing valve, which connects two valve cores through a connecting rod, and respectively arranges a first spring and a second spring on the inner side and the outer side of the valve core to balance the oil power on both sides of the valve core, thereby achieving uniform flow distribution or collection of the oil and high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the specific structure of the utility model;

[0013] Figure 2 yes Figure 1 FF section view.

[0014] Wherein: 1. valve body, 2. valve core, 3. spring seat, 4. throttling gasket, 5. connecting rod, 6. limit nut, 7. first spring, 8. second spring, 9. end cover, 10. O-ring, 11. oil hole, 12. throttling hole, 13. confluence port, 14. first diversion port, 15. second diversion port. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Tube type equalizing valve, such as Figure 1 to Figure 2 As shown, it includes a valve body 1, a confluence port 13 is opened on one side of the valve body 1, and a first diversion port 14 and a second diversion port 15 are opened on the other side. A valve core 2 is symmetrically installed in the valve body 1, and end covers 9 for sealing are respectively arranged at the ends of the valve body 1, and an O-ring 10 for sealing is arranged between the end cover 9 and the valve body 1.

[0017] The opposite ends of the two valve cores 2 are connected by a connecting rod 5 , and the ends of the valve core 2 are slidably fitted with the connecting rod 5 and are limited by a limiting nut 6 .

[0018] A first spring 7 connected to the two valve cores 2 is also mounted on the outside of the connecting rod 5 to balance the impact of the liquid flow on the valve core 2 and ensure the stability of the valve core.

[0019] The inner end of the valve core 2 is also provided with an oil through hole 11 communicating with the confluence port 13 , and the middle of the valve core 2 is provided with an oil delivery hole communicating with the first diversion port 14 and the second diversion port 15 .

[0020] A throttling gasket 4 is installed at the inner end of the valve core 2 close to the connecting rod 5. The throttling gasket 4 is provided with a throttling hole 12, which can effectively control the oil flow rate.

[0021] A spring seat 3 is also installed inside the valve core 2, and a second spring 8 is installed between the spring seat 3 and the outer end of the valve core 2, which can make the valve core 2 in a floating state, so as to balance the oil power on both sides and maintain the flow balance performance.

[0022] The operation mode of the utility model is as follows:

[0023] When diversion is required, first, the oil is sent into the valve body 1 from the confluence port 13. At this time, the oil will enter the valve core 2 through the oil ports 11 at the ends of the valve core 2 on both sides, and the flow rate will be regulated through the throttle hole 12. Finally, along Figure 2 The arrow in the middle indicates the direction of flow out from the first diversion port 14 and the second diversion port 15 .

[0024] When the flow needs to be collected, the oil is sent into the valve body from the first branch port 14 and the second branch port 15 respectively. Figure 2 The water flows in the opposite direction of the middle arrow and merges at the confluence port 13 .

[0025] After the oil flows into the valve body, the connecting rod connects the two valve cores, and the pressure at both ends of the valve core is balanced through the cooperation between the first spring 7 and the second spring 8. When the load pressure at the first diversion port is too large, the valve core as a whole will shift to the right, and the flow rate of the first diversion port will gradually increase, while the flow rate of the second diversion port will decrease until the flow rates at the first diversion port 14 and the second diversion port 15 are the same.

[0026] The first spring and the second spring drive the valve core to move and adjust so that the flow between the first branch port 14 and the second branch port 15 is not affected by the load size, thereby achieving synchronous control of the two actuators.

[0027] The utility model provides a tubular flow equalizing valve, which connects two valve cores through a connecting rod, and respectively arranges a first spring and a second spring on the inner side and the outer side of the valve core to balance the oil power on both sides of the valve core, thereby achieving uniform flow distribution or collection of the oil and high stability.

Claims

1. A tubular flow equalizing valve, comprising a valve body (1), wherein one side of the valve body (1) is provided with a converging port (13), and the other side of the valve body (1) is provided with a first flow diversion port (14) and a second flow diversion port (15); the characteristics are: The valve body (1) is symmetrically mounted with valve cores (2), and the opposite ends of the two valve cores (2) are connected via a connecting rod (5); the outer side of the connecting rod (5) is also provided with a first spring (7) connected to the two valve cores (2) respectively; the inner end of the valve core (2) close to the connecting rod (5) is mounted with a throttling gasket (4), and a throttling hole (12) is provided on the throttling gasket (4); the inner side of the valve core (2) is also equipped with a spring seat (3), and a second spring (8) is mounted between the spring seat (3) and the outer end of the valve core (2).

2. The tubular flow equalizing valve according to claim 1, characterized in that: The end of the valve core (2) is slidably fitted to the connecting rod (5) and is limited in position by a limiting nut (6).

3. The tubular flow equalizing valve according to claim 1, characterized in that: The inner end of the valve core (2) is also provided with an oil passage hole (11) communicating with the confluence port (13), and the middle of the valve core (2) is provided with an oil delivery hole communicating with the first diversion port (14) and the second diversion port (15).

4. The tubular flow equalizing valve according to claim 1, characterized in that: The ends of the valve body (1) are respectively provided with end covers (9) for sealing, and an O-ring (10) for sealing is provided between the end cover (9) and the valve body (1).

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