Bidirectional adjustable lifting type pressure relief check valve

Abstract

The utility model provides a two-way adjustable lifting type pressure relief check valve, which belongs to the field of check valves and comprises a valve body, two valve covers and two sealing gaskets are mounted on the valve body, a first spring and a second spring are mounted on the valve body, valve cores are fixedly connected onto the first spring and the second spring, and the valve cores are fixedly connected onto the valve cover and the sealing gaskets. A supporting assembly is installed on the valve body. An adjusting assembly; the adjusting assembly comprises two connecting frames, the two connecting frames are fixedly connected to the two valve decks correspondingly, inner threaded pipes are fixedly connected to the two connecting frames correspondingly, pull rods penetrate through the two valve decks correspondingly, and the two pull rods are sleeved with a first spring and a second spring correspondingly. The two pull rods are rotationally connected to the two valve elements correspondingly. According to the bidirectional infusion device, bidirectional infusion can be carried out, the practicability and portability of the device are improved, the arc-shaped plate and the vertical frame can be used for supporting the valve body, and the working stability of the valve body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve technical field especially relates to a two -way adjustable lifting type pressure relief check valve. BACKGROUND

[0002] Lifting check valve is the medium itself flow and open, close valve clack, is used to prevent medium backflow valve, also called check valve, one -way valve, backflow valve, and back pressure valve.

[0003] The existing lifting check valve can only carry out one -way delivery, and needs to be disassembled and then installed reversely when needs to carry out reverse delivery for some special conditions, which leads to large workload of the staff, and makes the check valve lower practicality. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a two -way adjustable lifting type pressure relief check valve.

[0005] The embodiment of the utility model provides a two -way adjustable lifting type pressure relief check valve, which comprises:

[0006] A valve body is provided with two valve covers and two sealing gaskets, a first spring and a second spring are installed on the valve body, a valve core is fixedly connected to the first spring and the second spring, and a support assembly is installed on the valve body.

[0007] An adjusting assembly comprises two connecting frames, two valve covers are fixedly connected to the two connecting frames, an internally threaded pipe is fixedly connected to the two connecting frames, a pull rod is penetrated through the two valve covers, the pull rod is sleeved in the first spring and the second spring, the pull rod is rotatably connected to the two valve cores, an externally threaded pipe is fixedly connected to the side wall of the pull rod, and the externally threaded pipe is matched with the internally threaded pipe.

[0008] Further, the support assembly comprises two arc-shaped plates installed on the valve body, and a stand is fixedly connected to the arc-shaped plate.

[0009] Further, a group of bolts are penetrated through the two valve covers in a threaded mode, and the two groups of bolts are threadedly connected to the valve body.

[0010] Further, a handle is fixedly connected to the end face of the pull rod away from the valve body.

[0011] Further, the stand is provided with a protective pattern.

[0012] Furthermore, the second spring has a greater elastic force than the first spring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The user installs the valve body in the designated position and then introduces liquid into one end of the valve body. As the solution enters the valve body, the liquid pressure increases, which pushes the valve core connected to the first spring, causing the first spring to contract and the valve core to rise, thus completing the forward delivery of the solution. When reverse delivery is required, the user pulls the handle so that the external threaded tube contacts the internal threaded tube. Then, the user rotates the handle to fix the external threaded tube on the internal threaded tube, causing the valve core on the first spring to rise to the designated position. Then, reverse delivery is performed, which causes the solution to apply pressure to the valve core on the second spring, thus completing the reverse delivery. This device can perform bidirectional delivery, improving the practicality and portability of the device.

[0015] 2. After the user has installed the valve body, the arc plate and the stand can be used to support the valve body, which improves the stability of the valve body during operation. Attached Figure Description

[0016] Fig. 1 This is a three-dimensional structural diagram of a bidirectional adjustable lifting pressure relief check valve as described in an embodiment of this utility model.

[0017] Fig. 2 This is a three-dimensional sectional view of the valve body structure of a bidirectional adjustable lifting pressure relief check valve as described in this embodiment of the utility model.

[0018] Fig. 3 This is an exploded perspective view of a bidirectional adjustable lifting pressure relief check valve as described in this embodiment of the present invention.

[0019] In the above attached figures: 1 valve body, 2 valve cover, 3 first spring, 4 valve core, 5 sealing gasket, 6 second spring, 7 connecting bracket, 8 internal threaded pipe, 9 pull rod, 10 external threaded pipe, 11 arc plate, 12 upright, 13 bolt, 14 handle. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figs. 1-3 As shown in the figure, this utility model embodiment proposes a bidirectional adjustable lifting pressure relief check valve, comprising:

[0022] The valve body 1 is provided with two valve covers 2 and two sealing pads 5, the two valve covers 2 are respectively provided with a group of bolts 13, the two groups of bolts 13 are respectively connected to the valve body 1, the valve body 1 is provided with a first spring 3 and a second spring 6, the first spring 3 and the second spring 6 are respectively fixedly connected with a valve core 4, and the valve body 1 is provided with a supporting assembly;

[0023] The adjusting assembly comprises two connecting frames 7, the two connecting frames 7 are respectively fixedly connected to the two valve covers 2, the two connecting frames 7 are respectively fixedly connected with an internally-threaded pipe 8, the two valve covers 2 are respectively penetrated by a pull rod 9, the two pull rods 9 are respectively sleeved in the first spring 3 and the second spring 6, the second spring 6 has a greater elastic force, the elastic force of the second spring 6 is greater than that of the first spring 3, the two pull rods 9 are respectively rotationally connected to the two valve cores 4, the two pull rods 9 are respectively fixedly connected with an externally-threaded pipe 10, the two externally-threaded pipes 10 are matched with the two internally-threaded pipes 8, and the two pull rods 9 are respectively fixedly connected with a handle 14, so that the user can conveniently rotate and pull the pull rod 9, and the portability of the device is improved.

[0024] The supporting assembly comprises two arc-shaped plates 11 connected to the valve body 1, the two arc-shaped plates 11 are respectively fixedly connected with a stand 12, the two stands 12 are respectively provided with a protective pattern, the friction between the stands 12 and the ground is improved, and the stability of the device is improved.

[0025] The detailed working process of the utility model is as follows:

[0026] The user first installs the valve body 1 at the designated position, then supports the valve body 1 by using the arc-shaped plate 11 and the stand 12, improves the stability of the work of the valve body 1, then pours liquid into one end of the valve body 1, the solution enters the valve body 1, as the solution in the valve body 1 increases, the solution pressure increases, the solution can push the valve core 4 connected to the first spring 3, the valve core 4 is subjected to an upward thrust, the first spring 3 contracts, so that the valve core 4 rises, then the solution is discharged from the other end of the valve body 1, that is, the forward delivery of the solution is completed, when the delivery is stopped, the pressure of the solution on the valve core 4 decreases, under the action of the first spring 3 and the gravity of the valve core 4, the valve core 4 can block the valve body 1, realizing the sealing of the valve body 1, when reverse delivery is needed, the user pulls the handle 14, the handle 14 drives the pull rod 9 to rise, which can pull the valve core 4 upwards, so that the outer threaded pipe 10 on the side wall of the pull rod 9 contacts the inner threaded pipe 8, then the user rotates the handle 14, so that the outer threaded pipe 10 is screwed on the inner threaded pipe 8, so that the first spring 3 is contracted, the valve core 4 on the first spring 3 rises to the designated position, then the pull rod 9 in the second spring 6 is rotated, so that the second spring 6 resets, so that the valve core 4 on the second spring 6 seals the valve body 1, then reverse infusion is carried out, so that the solution presses the valve core 4 on the second spring 6, which is the same as the forward infusion, so that the bidirectional infusion of the lifting check valve is realized, improving the practicability and portability of the device.

[0027] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application, which should be covered by the claims of the present application.

Claims

1. A bidirectional adjustable lift pressure relief check valve characterized by, Include: Valve body (1), two valve covers (2) and two sealing pads (5) are installed on the valve body (1), the first spring (3) and the second spring (6) are installed on the valve body (1), the valve core (4) is fixedly connected on the first spring (3) and the second spring (6), the support assembly is installed on the valve body (1); Adjusting assembly; the adjusting assembly comprises two connecting frames (7), two connecting frames (7) are fixedly connected on two valve covers (2), two inner threaded pipes (8) are fixedly connected on two connecting frames (7), two pull rods (9) are penetrated on two valve covers (2), two pull rods (9) are respectively sleeved in the first spring (3) and the second spring (6), two pull rods (9) are respectively rotatably connected on two valve cores (4), two outer threaded pipes (10) are fixedly connected on the side wall of two pull rods (9), two outer threaded pipes (10) are matched with two inner threaded pipes (8) respectively.

2. A bidirectional adjustable pressure relief check valve according to claim 1, wherein, Wherein: The support assembly comprises two arc-shaped plates (11) installed on the valve body (1), and the two arc-shaped plates (11) are fixedly connected with the stand (12).

3. A bidirectional adjustable pressure relief check valve according to claim 1, wherein, Wherein: Two valve covers (2) are penetrated by a group of bolts (13), and two groups of bolts (13) are threadedly connected on the valve body (1).

4. The bidirectional adjustable pressure-lifting check valve of claim 1, wherein, Wherein: The end face of two pull rods (9) away from the valve body (1) is fixedly connected with the handle (14).

5. A bidirectional adjustable pressure-lift check valve according to claim 2, wherein, Wherein: Two stands (12) are provided with protective lines.

6. A bidirectional adjustable pressure-lifting check valve according to claim 1, wherein Wherein: The second spring (6) has greater elasticity, and the elasticity of the second spring (6) is greater than that of the first spring (3).

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