Novel rubber clack check valve

Abstract

The utility model provides a novel rubber clack check valve which comprises a valve body, a circulation hole formed in the valve body, a fixing block arranged on the valve body and located on one side of the circulation hole, and a valve clack with one end rotatably arranged on the fixing block. The inclined ring plate is arranged on the valve body and located in the circulation hole, the conical ring block is arranged on the end face, close to the circulation hole, of the valve clack and used for being attached to the inclined face of the inclined ring plate, and the connecting ring block is arranged on the end face, close to the circulation hole, of the valve clack and located on the outer side of the circulation hole. The at least one annular convex block is arranged on the connecting ring block, the annular convex block is an elastic block, the conical ring block is an elastic block, and the inclined ring plate is an elastic plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a novel rubber flap check valve. BACKGROUND

[0002] Check valve is the closing piece for circular valve flap and acts by its own weight and medium pressure to block the backflow of medium, which belongs to automatic valve and is also called non-return valve, one-way valve, backflow valve or isolation valve. The valve flap movement mode is divided into lifting type and swing type. The lifting type check valve is similar to the structure of the stop valve, only lacking the valve rod driving the valve flap. The swing type check valve has a valve flap which is obliquely arranged and can rotate around the shaft, and its working principle is similar to the lifting type check valve. The check valve is often used as the bottom valve of the water pumping device to prevent the backflow of water. The check valve and the stop valve are combined to play the role of safety isolation.

[0003] However, the traditional swing type check valve only realizes the sealing by pressing the valve flap made of rubber material on the flow-through hole of the valve body, and the sealing mode is mainly realized by the surface of the valve flap contacting the valve body, so the sealing structure of the flow-through hole is less, and the sealing effect of the valve flap on the flow-through hole cannot be improved. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at the defects and deficiencies of the prior art, and provides a novel rubber flap check valve.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a novel rubber flap check valve, which comprises a valve body, a flow-through hole formed in the valve body, a fixed block arranged on one side of the flow-through hole of the valve body, a valve flap rotatably arranged at one end of the fixed block, an inclined ring plate arranged in the flow-through hole of the valve body, a conical ring block arranged on the end face of the valve flap close to the flow-through hole and used for abutting against the inclined surface of the inclined ring plate, a connecting ring block arranged on the end face of the valve flap close to the flow-through hole and located on the outer side of the flow-through hole, and at least one annular protrusion arranged on the connecting ring block, wherein the annular protrusion is an elastic block, the conical ring block is an elastic block, and the inclined ring plate is an elastic plate.

[0006] Further improvement is that the three annular protrusions are equidistantly arranged on the connecting ring block.

[0007] Further improvement is that a deformation inner cavity is formed in the annular protrusion.

[0008] Further improvement is that the annular protrusion is a rubber protrusion.

[0009] Further improvement is that the conical ring block is a rubber block.

[0010] Further improvement is that the other end of the valve disc is provided with an elastic buffer block, the elastic buffer block is away from the end of the flow-through hole, and the elastic buffer block is a rubber block.

[0011] Further improvement is that the upper end of the elastic buffer block is provided with an auxiliary inner cavity.

[0012] Further improvement is that the circumferential side of the elastic buffer block is provided with at least one annular groove.

[0013] Further improvement is that the other end of the valve disc is provided with a counterweight block, and the counterweight block is threadedly connected to the other end of the valve disc.

[0014] After the above technical scheme is adopted, the utility model has the beneficial effects that when one end of the valve disc is turned to the left around the fixed block and abuts against the position of the flow-through hole, the taper ring block and the inclined surface of the inclined ring plate are surface-fitted, so that the gap between the flow-through hole and the valve disc is sealed, and the annular protrusion on the connecting ring block is in contact with the valve body on one side of the flow-through hole, the annular protrusion is deformed to achieve the effect of secondary sealing, the sealing mode is realized through the structure of double sealing, and the sealing effect of the valve disc on the flow-through hole can be improved.

[0015] Further effect: the deformation of the annular protrusion on the connecting ring block is improved through the deformed inner cavity, so that when the valve disc is extruded by the valve body, the sealing effect is improved through the extrusion deformation of the annular protrusion.

[0016] Further effect: the annular protrusion can also slow down the damage caused by the direct impact of the valve disc on the valve body when the valve disc is turned to the left and contacted with the valve body, and can play a buffering effect on the valve disc.

[0017] Further effect: when the valve disc is turned to the right, the elastic buffer block is in contact with the inner wall of the valve body, so as to prevent the valve disc from being vibrated and damaged by the impact of the inner wall of the valve body.

[0018] Further effect: the upper end of the elastic buffer block can be more easily deformed elastically when it is in contact with the inner wall of the valve body, so as to improve the buffering effect of the elastic buffer block.

[0019] Further effect: the deformation effect of the elastic buffer block is improved through the annular groove, so that the elastic buffer block can better absorb the force generated by the impact between the valve disc and the valve body.

[0020] Further effect: the extrusion force at the valve disc and the flow-through hole is increased by the counterweight block, so as to increase the contact force between the taper ring block and the inclined ring plate, and the contact force between the annular protrusion and the valve body, and further improve the sealing effect of the valve disc on the flow-through hole; the counterweight block can be detached from the valve disc through the bolt, and the weight of the counterweight block can be replaced according to the pressure of the water flow. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative labor.

[0022] Figure 1 is a structural schematic diagram of the present application;

[0023] Figure 2 is a front view cut diagram of the valve flap in the present application;

[0024] Figure 3 is a bottom view of the valve flap in the present application;

[0025] Figure 4 is an enlarged view of A part corresponding to Figure 1 .

[0026] The reference signs are explained as follows: valve body 1, flow-through hole 2, fixed block 3, valve flap 4, inclined ring plate 5, conical ring block 6, connecting ring block 7, annular protrusion 8, deformation inner cavity 9, elastic buffer block 10, auxiliary inner cavity 11, annular groove 12, counterweight 13, bolt 14. DETAILED DESCRIPTION

[0027] The present application will be further described in combination with the drawings and specific embodiments.

[0028] Referring to Figures 1 to 4 , the technical solution adopted in the present embodiment is: a novel rubber flap check valve, comprising a valve body 1, a flow-through hole 2 opened on the valve body 1, a fixed block 3 arranged on the valve body 1 at one side of the flow-through hole 2, a valve flap 4 rotatably arranged at one end of the fixed block 3, further comprising an inclined ring plate 5 arranged on the valve body 1 inside the flow-through hole 2, a conical ring block 6 arranged on the valve flap 4 close to the end face of the flow-through hole 2 for abutting with the inclined surface of the inclined ring plate 5, a connecting ring block 7 arranged on the valve flap 4 close to the end face of the flow-through hole 2 and outside the flow-through hole 2, at least one annular protrusion 8 arranged on the connecting ring block 7, the annular protrusion 8 being an elastic block, the conical ring block 6 being an elastic block, and the inclined ring plate 5 being an elastic plate.

[0029] The annular protrusion 8 has three, and the three annular protrusions 8 are equidistantly arranged on the connecting ring block 7.

[0030] The annular protrusion 8 is provided with a deformation inner cavity 9.

[0031] The annular protrusion 8 is a rubber protrusion.

[0032] The conical ring block 6 is a rubber block.

[0033] The other end of the valve disc 4 is provided with an elastic buffer block 10, which is away from the end of the flow-through hole 2, and the elastic buffer block 10 is a rubber block.

[0034] The upper end of the elastic buffer block 10 is provided with an auxiliary inner cavity 11.

[0035] The circumferential side of the elastic buffer block 10 is provided with at least one annular groove 12.

[0036] The other end of the valve disc 4 is provided with a counterweight block 13, which is threadedly connected to the other end of the valve disc 4 through a bolt 14.

[0037] The working principle of the utility model is: when one end of the valve disc 4 is turned to the left around the fixed block 3 and abuts at the position of the flow-through hole 2, the conical ring block 6 and the inclined surface of the inclined ring plate 5 are surface-adhered, so that the gap between the flow-through hole 2 and the valve disc 4 is sealed, and the annular protrusion 8 on the connecting ring block 7 is in contact with the valve body 1 located on one side of the flow-through hole 2, the annular protrusion 8 is deformed to achieve the effect of secondary sealing, and the sealing mode is realized through the structure of double sealing, so that the sealing effect of the valve disc 4 on the flow-through hole 2 can be improved.

[0038] The counterweight block 13 can increase the extrusion force at the valve disc 4 and the flow-through hole 2, thereby improving the contact force between the conical ring block 6 and the inclined ring plate 5, and the contact force between the annular protrusion 8 and the valve body 1, thereby improving the sealing effect of the valve disc 4 on the flow-through hole 2, and the counterweight block 13 can be detached from the valve disc 4 through the bolt 14, and the weight of the counterweight block 13 can be replaced according to the pressure of the water flow.

[0039] When the valve disc 4 is turned to the right, the elastic buffer block 10 is in contact with the inner wall of the valve body 1, so that the valve disc 4 and the inner wall of the valve body 1 are prevented from colliding and being damaged by vibration.

[0040] The utility model wants to protect the structure of the product, the model of each element is not the content protected by the utility model, and is a known technology, and as long as the elements on the market can realize the functions of the utility model, they can be selected and applied as a new rubber disc check valve. Therefore, the model and other parameters of the element are not described in detail in the utility model. The contribution of the utility model lies in the scientific combination of each element.

[0041] The basic principle and main features of the utility model and its advantages are shown and described above, and the person skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the description are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents. The utility model is not described in detail, which is the known technology of the person skilled in the art.

Claims

1. A novel rubber flap check valve, comprising a valve body, a flow hole formed on the valve body, a fixing block disposed on the valve body on one side of the flow hole, and a valve flap rotatably disposed at one end on the fixing block, characterized in that: It also includes an inclined ring plate disposed on the valve body and located inside the flow hole, a conical ring block disposed on the valve disc near the end face of the flow hole for fitting with the inclined surface of the inclined ring plate, a connecting ring block disposed on the valve disc near the end face of the flow hole and located outside the flow hole, and at least one annular protrusion disposed on the connecting ring block, wherein the annular protrusion is an elastic block, the conical ring block is an elastic block, and the inclined ring plate is an elastic plate.

2. The novel rubber flap check valve according to claim 1, characterized in that: There are three annular protrusions, which are equidistantly arranged on the connecting ring block.

3. The novel rubber flap check valve according to claim 1, characterized in that: The annular protrusion has a deformable inner cavity.

4. A novel rubber flap check valve according to claim 1, 2, or 3, characterized in that: The annular bump is a rubber protrusion.

5. A novel rubber flap check valve according to claim 1, characterized in that: The conical ring block is a rubber block.

6. The novel rubber flap check valve according to claim 1, characterized in that: An elastic buffer block is provided at the other end of the valve disc, and the elastic buffer block is a rubber block at the end away from the flow hole.

7. A novel rubber flap check valve according to claim 6, characterized in that: An auxiliary inner cavity is provided at the upper end of the elastic buffer block.

8. A novel rubber flap check valve according to claim 6, characterized in that: The elastic buffer block has at least one annular groove on its periphery.

9. A novel rubber flap check valve according to claim 1, characterized in that: A counterweight is provided at the other end of the valve disc, and the counterweight is connected to the other end of the valve disc by bolt thread.

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