Novel clamping sleeve type one-way valve body structure

Abstract

The utility model discloses a novel clamping sleeve type one-way valve body structure, and belongs to the technical field of one-way valves. According to the clamping sleeve type one-way valve body, the non-return steel ball structure of a traditional one-way valve is changed, the non-return conical surface is designed on the backflow preventing body and can be tightly attached to a sealing inclined table on a fluid channel, and the good sealing effect is achieved; meanwhile, the spring guide rod is improved to the backflow prevention body from the valve seat, so that the main body of the flow-limiting valve core is T-shaped, and the spring guide rod is limited by the spring, so that the movement of the backflow prevention body is more stable, and the non-return sealing effect can be quickly realized; meanwhile, the guiding arc-shaped protrusion is designed at the bottom of the backflow preventing body, the guiding effect of moving the fluid towards the side edge can be achieved, the fluid can rapidly burst through the backflow preventing body when reaching the specified pressure, and the one-way valve has good stability when working.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves, in particular to a novel sleeve-type one-way valve body structure. Background Art

[0002] A one-way valve is a valve that allows fluid to flow only through the inlet, but prevents the outlet medium from flowing back. It is also called a check valve or non-return valve. Among them, a sleeve-type one-way valve is a one-way valve structure that can be quickly connected to a fluid pipeline. It has locking nuts at both ends of the valve body, and the connection between the two pipelines is achieved by the cooperation of the sleeve ring at the end and the locking nut. The internal structure of existing sleeve-type one-way valves is relatively simple and conventional, and most of them are mainly composed of a valve seat, a spring, and an anti-backflow steel ball. Although it has a low cost, it does not provide a good anti-return effect in some fluid pipeline applications that require high one-way sealing.

[0003] To this end, we have improved the internal structure of the ferrule-type one-way valve, changing the traditional steel ball structure and replacing it with a non-return cone with a taper and a guide arc-shaped protrusion, so that it has a better anti-backflow effect when checking the fluid. Utility Model Content

[0004] The purpose of the utility model is to provide a novel sleeve-type one-way valve body structure to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A new type of sleeve-type one-way valve body structure includes a valve body, in which a first fluid channel, a second fluid channel and a third fluid channel are sequentially arranged, the top of the second fluid channel is threadedly connected to a regulating valve seat, and a plurality of side overflow grooves are evenly arranged on the side wall of the regulating valve seat, an anti-backflow fluid is arranged at the bottom of the second fluid channel, a non-return cone surface is arranged on the side wall of the anti-backflow fluid, a sealing ramp that fits the non-return cone surface is arranged at the top of the first fluid channel, a guiding arc-shaped protrusion is arranged at the lower end of the anti-backflow fluid, and a spring is arranged between the regulating valve seat and the anti-backflow fluid.

[0007] As a further preferred solution of the present invention: a spring guide rod is provided at the upper end of the anti-backflow fluid, and the spring is sleeved on the spring guide rod.

[0008] As a further preferred solution of the present invention: a cross regulating hole is provided at the upper end of the regulating valve seat.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] The valve body of the ferrule-type one-way valve changes the non-return steel ball structure of the traditional one-way valve. By designing a non-return cone on the anti-backflow fluid, it can fit tightly with the sealing ramp on the fluid channel to achieve a good sealing effect. At the same time, the spring guide rod is improved from the valve seat to the anti-backflow fluid, so that the main body of the flow limiting valve core is T-shaped. Under the limit of the spring, the spring guide rod makes the movement of the anti-backflow fluid more stable, and can quickly achieve a non-return sealing effect. At the same time, by designing a guide arc-shaped protrusion at the bottom of the anti-backflow fluid, it can guide the fluid to move sideways, so that when the fluid reaches the specified pressure, it can quickly flush the anti-backflow fluid, so that the one-way valve has good stability when working. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic cross-sectional view of the valve body structure of the new sleeve-type one-way valve of the utility model;

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the valve body of the new sleeve-type one-way valve of the utility model when the internal valve core is ignored;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the valve core inside the valve body structure of the new sleeve-type one-way valve of the utility model;

[0014] Figure 4 This is a schematic diagram of the main structure of the valve core inside the valve body structure of the new sleeve-type one-way valve of the utility model;

[0015] Figure 5 It is a three-dimensional structural diagram of the valve body structure of the new sleeve-type one-way valve of the utility model.

[0016] In the figure: 1. Valve body; 2. First fluid channel; 3. Second fluid channel; 4. Third fluid channel; 5. Anti-backflow fluid; 6. Check cone; 7. Guide arc protrusion; 8. Spring guide rod; 9. Spring; 10. Adjusting valve seat; 11. Cross adjustment hole; 12. Side overflow groove; 13. Sealing ramp. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0018] See also Figure 1-3This embodiment provides a novel sleeve-type one-way valve body structure, including a valve body 1, in which a first fluid channel 2, a second fluid channel 3 and a third fluid channel 4 are sequentially arranged. The above structure is a conventional universal sleeve-type valve body structure familiar to those skilled in the art, such as Figure 5 As shown, threads should also be provided at the upper and lower ends of the valve body 1 for cooperating with the locking nut to lock the pipeline. This is an existing common structure and will not be described in detail. In this application, a regulating valve seat 10 is threadedly connected to the top of the second fluid channel 3. In order to adjust the regulating valve seat 10, a cross regulating hole 11 is provided at the upper end of the regulating valve seat 10. A plurality of side overflow grooves 12 are evenly provided on the side wall of the regulating valve seat 10. Preferably, in this application, as shown in FIG. Figure 3 As shown, two side overflow grooves 12 are symmetrically arranged to enable the fluid to flow from the second fluid channel 3 into the third fluid channel 4; the design of the side overflow groove 12 changes the form of opening a through hole in the center or on the side of the traditional valve seat. This design can cooperate with the anti-backflow fluid 5 to ensure the stability of the fluid flow and play a pressure stabilizing role, while also avoiding the problem of too fast fluid backflow, so that the anti-backflow fluid 5 can be closed and sealed in time; at the same time, it only needs to groove the side wall, which is easy to process, reduces production costs, and improves practical performance.

[0019] Reference Figure 1-4 As shown, the anti-backflow fluid 5 is disposed at the bottom of the second fluid channel 3, with a non-return cone 6 provided on the sidewall of the anti-backflow fluid 5. A sealing ramp 13 is provided at the top of the first fluid channel 2, which is in contact with the non-return cone 6. A guiding arc-shaped protrusion 7 is provided at the lower end of the anti-backflow fluid 5, and a spring 9 is provided between the regulating valve seat 10 and the anti-backflow fluid 5. At the same time, to ensure the stability of the movement of the anti-backflow fluid 5, a spring guide rod 8 is provided at the upper end of the anti-backflow fluid 5, and the spring 9 is sleeved on the spring guide rod 8. In actual operation, the lower end of the non-return cone 6 and the guiding arc-shaped protrusion 7 are always located within the first fluid channel 2, ensuring the stability of the anti-backflow fluid 5 during its up and down movement. When the anti-backflow fluid 5 is preventing backflow, its non-return cone 6 can quickly press against the sealing ramp 13, quickly achieving a sealed anti-backflow seal.

[0020] It should be noted that in actual applications, the sleeve-type one-way valve body needs to be matched with the sleeve ring and the locking nut to achieve installation with the pipeline. This is a routine operation familiar to technical personnel in this field and will not be further elaborated in this application.

[0021] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and technical features of the present application. For those skilled in the art, solutions or features that belong to the prior art or common knowledge will not be described in detail in the above embodiments.

[0022] In addition, the technical solutions of the present application are not limited to the above-mentioned embodiments. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A novel sleeve-type one-way valve body structure, comprising a valve body (1), wherein a first fluid channel (2), a second fluid channel (3) and a third fluid channel (4) are sequentially provided in the valve body (1), and characterized in that: The top of the second fluid channel (3) is threadedly connected to a regulating valve seat (10), and a plurality of side overflow grooves (12) are evenly provided on the side wall of the regulating valve seat (10). The bottom of the second fluid channel (3) is provided with an anti-backflow fluid (5), and the side wall of the anti-backflow fluid (5) is provided with a non-return cone surface (6). The top of the first fluid channel (2) is provided with a sealing ramp (13) that fits with the non-return cone surface (6), and the lower end of the anti-backflow fluid (5) is provided with a guiding arc-shaped protrusion (7). A spring (9) is provided between the regulating valve seat (10) and the anti-backflow fluid (5).

2. The novel sleeve-type one-way valve body structure according to claim 1 is characterized in that: A spring guide rod (8) is provided at the upper end of the anti-backflow fluid (5), and a spring (9) is sleeved on the spring guide rod (8).

3. The novel sleeve-type one-way valve body structure according to claim 1 is characterized in that: A cross regulating hole (11) is provided at the upper end of the regulating valve seat (10).

Images