Right-angle stop valve of energy accumulator

Abstract

The utility model relates to the technical field of energy accumulator stop valves, and discloses an energy accumulator right-angle stop valve which comprises a valve body, a valve plug is slidably inserted into the valve body, a cone valve rod is in threaded connection with the interior of the valve plug, a valve element is fixedly connected to the right side face of the cone valve rod, and an external pressure oil pipe is fixedly connected to the right end of the valve body. The top end of the valve body is fixedly connected with a mounting pipe, and the interior of the valve body is rotationally connected with a lead screw. According to the energy accumulator right-angle stop valve, a threaded pipe is driven to move by rotating a lead screw, a connecting plate is promoted to drive a pressing ring to move, then a valve element is reinforced, the stability and the sealing performance of the valve element are improved, a mounting ring and a valve plug are positioned through a locking nut, the stability of the valve plug is improved, and the situation that the valve plug is affected by a cone valve rod to be loosened is avoided; the overall sealing performance of the stop valve is improved, and the problems that an existing stop valve element is poor in overall sealing performance and stability are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of accumulator stop valves, in particular to a right-angle accumulator stop valve. BACKGROUND

[0002] The accumulator stop valve is a kind of hydraulic element, which is mainly used for safety flow interruption and pressure relief, and provides convenience for maintenance and replacement. The accumulator stop valve is designed with small operating torque and reliable sealing, and has three types of straight-through type, right-angle type and three-way type threaded connection according to different connection modes.

[0003] The existing patent (publication number: CN 212106932U) discloses an accumulator stop valve, which provides a set of stop valves for the accumulator of a hydraulic system. The accumulator stop valve adopts a new cone valve structure, and a guide rod is arranged at the cone surface end of the cone valve. When the square head cone valve rod exposed on the left side is rotated counterclockwise, the cone valve supplies oil to the accumulator, and when the square head cone valve rod is rotated clockwise, the cone valve is closed to cut off the pressure oil source. The accumulator stop valve has the advantages of simple overall structure, convenient manufacturing, installation and maintenance, non-space occupation, lightness, flexibility, safety and reliability.

[0004] The above-mentioned stop valve only relies on a single threaded structure to control the opening and closing of the conical valve core, and the stability is low. Once the cone valve rod is loose, the sealing effect of the valve core will be affected, and the rotation of the cone valve rod may also cause the loosening of the valve plug, reducing the overall sealing performance of the stop valve. Practical new type content

[0005] In view of the defects of the prior art, the application provides a right-angle accumulator stop valve, which has the advantages of being capable of reinforcing the valve core of the cone valve rod, improving the stability and sealing performance of the valve core, improving the stability of the valve plug, avoiding the loosening of the valve plug caused by the influence of the cone valve rod, and reducing the overall sealing performance of the stop valve. The problem of the prior art that the stop valve only relies on a single threaded structure to control the opening and closing of the conical valve core, and the stability is low. Once the cone valve rod is loose, the sealing effect of the valve core will be affected, and the rotation of the cone valve rod may also cause the loosening of the valve plug, reducing the overall sealing performance of the stop valve.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a right-angle accumulator stop valve, comprising a valve body, a valve plug slidably inserted into the valve body, a cone valve rod threadedly connected to the inside of the valve plug, a valve core fixedly connected to the right side of the cone valve rod, an external pressure oil pipe fixedly connected to the right end of the valve body, an installation pipe fixedly connected to the top end of the valve body, a lead screw rotatably connected to the inside of the valve body, a threaded pipe threadedly connected to the outer circumferential surface of the lead screw, a connecting plate fixedly connected to the outer circumferential surface of the threaded pipe, and a pressure ring fixedly connected to the top end of the connecting plate.

[0007] Through the above scheme, since the stop valve only relies on a single threaded structure to control the opening and closing of the tapered valve core, the stability is low, and once the tapered valve rod is loose, the sealing effect of the valve core will be affected, and the rotation of the tapered valve rod may also cause the loosening of the valve plug, reducing the overall sealing performance of the stop valve, the threaded pipe is moved by rotating the lead screw, the connecting plate is driven to move the compression ring, and then the valve core is reinforced, the stability and sealing performance of the valve core are improved, the mounting ring and the valve plug are positioned by the locking nut, the stability of the valve plug is improved, the influence of the tapered valve rod on the loosening of the valve plug is avoided, and the overall sealing performance of the stop valve is improved.

[0008] Further, the valve core is tapered, and the valve core is matched with the valve body through a tapered groove formed in the valve body.

[0009] Through the above scheme, the stop valve is controlled by the valve core to be turned on and off, so that the pressure oil flows or is cut off.

[0010] Further, the left side of the valve body is fixedly connected with equidistantly arranged mounting rods, the outer circumferential surface of the valve plug is fixedly sleeved with a mounting ring, the mounting ring is slidably connected with the mounting rods through the mounting holes formed in the mounting ring, and the outer circumferential surface of each mounting rod is threadedly connected with a nut.

[0011] Through the above scheme, the mounting ring and the valve plug are positioned by the locking nut, the stability of the valve plug is improved, the influence of the tapered valve rod on the loosening of the valve plug is avoided, and the overall sealing performance of the stop valve is improved.

[0012] Further, the outer circumferential surface of the valve plug is provided with a first sealing ring, the left side of the first sealing ring is in contact with the right side of the mounting ring, and the right side of the valve plug is provided with a second sealing ring, and the right side of the second sealing ring is in contact with the inside of the valve body.

[0013] Through the above scheme, the valve plug is double-sealed by the first sealing ring and the second sealing ring, and the sealing effect between the valve plug and the valve body is improved.

[0014] Further, the inside of the valve plug is threadedly connected with a first sealing pipe, and the left side of the first sealing pipe is fixedly connected with a third sealing ring.

[0015] Through the above scheme, the valve plug and the tapered valve rod are sealed by the first sealing pipe and the third sealing ring, and the sealing effect of the valve plug is improved.

[0016] Further, the inside of the valve body is threadedly connected with two second sealing pipes, and the fourth sealing ring is arranged on the side close to the two second sealing pipes.

[0017] Through the above scheme, the lead screw is sealed by the second sealing pipe and the fourth sealing ring, and the sealing effect of the valve body is improved.

[0018] Further, the outer circumferential surface of the lead screw is sleeved with two limiting rings, and the outer circumferential surface of each limiting ring is rotationally connected with the inner wall of the valve body.

[0019] Through the above scheme, the lead screw is limited, the lead screw is prevented from sliding deviation, and the stability of the movement of the lead screw is improved.

[0020] Further, the inner wall of the valve body is fixedly connected with a cross rod, and the inner part of the connecting plate is slidingly connected with the outer circumferential surface of the cross rod.

[0021] Through the above scheme, the threaded pipe is limited, and the threaded pipe is prevented from rotating with the lead screw, so that the threaded pipe always moves horizontally.

[0022] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0023] The accumulator right-angle stop valve moves the threaded pipe by rotating the lead screw, moves the connecting plate by the threaded pipe, further reinforces the valve core, improves the stability and sealing performance of the valve core, positions the mounting ring and the valve plug by the locking nut, improves the stability of the valve plug, avoids loosening of the valve plug affected by the cone valve rod, improves the overall sealing performance of the stop valve, and solves the problems of poor sealing performance and stability of the valve core and the overall sealing performance of the existing stop valve. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole three-dimensional structure diagram of the present application;

[0025] Figure 2 It is a whole sectional structure diagram of the present application;

[0026] Figure 3 It is a sectional front view structure diagram of the present application;

[0027] Figure 4 It is a valve plug structure diagram of the present application.

[0028] In the figure:

[0029] 1, valve body; 2, valve plug; 3, cone valve rod; 4, valve core; 5, external pressure oil pipe; 6, mounting pipe; 7, lead screw; 8, threaded pipe; 9, connecting plate; 10, compression ring; 11, first sealing ring; 12, second sealing ring; 13, mounting rod; 14, mounting ring; 15, nut; 16, first sealing pipe; 17, third sealing ring; 18, limiting ring; 19, second sealing pipe; 20, fourth sealing ring; 21, cross rod. DETAILED DESCRIPTION

[0030] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , the right side of the valve core 4 is fixedly connected with the valve stem 3, the right end of the valve body 1 is fixedly connected with the external pressure oil pipe 5, the top end of the valve body 1 is fixedly connected with the mounting pipe 6, the inside of the valve body 1 is rotationally connected with the lead screw 7, the outer circumference of the lead screw 7 is threadedly connected with the threaded pipe 8, the outer circumference of the threaded pipe 8 is fixedly connected with the connecting plate 9, and the top end of the connecting plate 9 is fixedly connected with the pressure ring 10.

[0032] Please refer to Figure 2 and Figure 3 , the valve core 4 is conical, the valve core 4 is fitted with the valve body 1 through the conical groove formed in the inside of the valve body 1, the on-off valve is controlled by the valve core 4, and the pressure oil is circulated or blocked.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 , the left side of the valve body 1 is fixedly connected with the equidistantly arranged mounting rods 13, the outer circumference of the valve plug 2 is fixedly sleeved with the mounting ring 14, the mounting ring 14 is slidably connected with the mounting rods 13 through the mounting holes formed in the inside, the outer circumference of each mounting rod 13 is threadedly connected with the nut 15, the mounting ring 14 and the valve plug 2 are positioned by the locking nut 15, the stability of the valve plug 2 is improved, the valve plug 2 is prevented from loosening due to the influence of the valve stem 3, and the overall sealing performance of the stop valve is improved.

[0034] Please refer to Figure 2 and Figure 3 , the outer circumference of the valve plug 2 is provided with the first sealing ring 11, the left side of the first sealing ring 11 is in contact with the right side of the mounting ring 14, the right side of the valve plug 2 is provided with the second sealing ring 12, the right side of the second sealing ring 12 is in contact with the inside of the valve body 1, the valve plug 2 is double-sealed by the first sealing ring 11 and the second sealing ring 12, and the sealing effect between the valve plug 2 and the valve body 1 is improved.

[0035] Please refer to Figure 4The first sealing pipe 16 is in threaded connection with the inside of the valve plug 2, and the third sealing ring 17 is fixedly connected to the left side of the first sealing pipe 16, so that the valve plug 2 and the taper valve rod 3 are sealed by the first sealing pipe 16 and the third sealing ring 17, and the sealing effect of the valve plug 2 is improved.

[0036] Please refer to Figure 2 and Figure 3 The two second sealing pipes 19 are in threaded connection with the inside of the valve body 1, and the fourth sealing ring 20 is arranged on the side close to the second sealing pipe 19, so that the screw rod 7 is sealed by the second sealing pipe 19 and the fourth sealing ring 20, and the sealing effect of the valve body 1 is improved.

[0037] Please refer to Figure 2 and Figure 3 The two limiting rings 18 are fixedly sleeved on the outer circumferential surface of the screw rod 7, and the outer circumferential surface of each limiting ring 18 is in rotational connection with the inside of the valve body 1, so that the screw rod 7 is limited, the screw rod 7 is prevented from sliding and deviating, and the stability of the movement of the screw rod 7 is improved.

[0038] Please refer to Figure 2 and Figure 3 The horizontal rod 21 is fixedly connected to the inner wall of the valve body 1, and the inside of the connecting plate 9 is in sliding connection with the outer circumferential surface of the horizontal rod 21, so that the threaded pipe 8 is limited, the threaded pipe 8 is prevented from rotating with the screw rod 7, and the threaded pipe 8 is always moved horizontally.

[0039] The straight angle stop valve of the energy accumulator in the embodiment is moved by rotating the screw rod 7 to drive the threaded pipe 8, the connecting plate 9 is moved to drive the compression ring 10, the valve core 4 is further reinforced, the stability and the sealing property of the valve core 4 are improved, the installation ring 14 and the valve plug 2 are positioned by the locking nut 15, the stability of the valve plug 2 is improved, the valve plug 2 is prevented from loosening due to the influence of the taper valve rod 3, the sealing property of the whole stop valve is improved, and the problems of poor sealing property and stability of the valve core 4 of the existing stop valve are solved.

[0040] It should be noted that the outer circumferential surfaces of the taper valve rod 3 and the screw rod 7 are provided with hand wheels of different shapes, so that the taper valve rod 3 and the screw rod 7 are conveniently rotated and controlled by the hand wheels, the convenience of the user is provided, and the convenience of the operation of the stop valve is improved.

[0041] The working principle of the above embodiment is as follows:

[0042] The external accumulator can be installed through the installation pipe 6, when it is needed to close the stop valve, rotating the tapered valve rod 3 drives the valve core 4 to move forward, which makes the valve core 4 move into the tapered groove in the valve body 1, and the pressure oil is blocked, then rotating the lead screw 7 drives the threaded pipe 8 to move, the threaded pipe 8 drives the pressure ring 10 to move through the connecting plate 9, the valve core 4 is pressed by the pressure ring 10, which tightens the valve core 4, and the sealing performance and stability of the valve core 4 are improved, and the pressure oil leakage is avoided, when it is needed to open the stop valve, rotating the lead screw 7 drives the threaded pipe 8 to move back, the threaded pipe 8 drives the pressure ring 10 to move back through the connecting plate 9, the restriction of the pressure ring 10 on the valve core 4 is cancelled, then rotating the tapered valve rod 3 drives the valve core 4 to move back, which makes the valve core 4 move out of the tapered groove in the valve body 1, the equidistantly arranged installation rod 13 and the nut 15 can uniformly position the valve plug 2, avoid the loosening of the valve plug 2 affected by the tapered valve rod 3, improve the stability of the valve plug 2, and further improve the sealing performance and stability of the stop valve as a whole, when it is needed to disassemble and maintain the valve plug 2, the nut 15 can be sequentially taken off from the installation rod 13, the positioning restriction of the nut 15 on the installation ring 14 and the valve plug 2 is cancelled, then the valve plug 2 can be taken off from the valve body 1 for maintenance.

[0043] It should be noted that the relative terms, such as first and second, and the like, are used herein solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0044] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An accumulator right angle stop valve comprising a valve body (1), characterized in that: The inside of the valve body (1) is slidingly inserted with a valve plug (2), the inside of the valve plug (2) is threadedly connected with a taper valve rod (3), the right side of the taper valve rod (3) is fixedly connected with a valve core (4), the right end of the valve body (1) is fixedly connected with an external pressure oil pipe (5), the top end of the valve body (1) is fixedly connected with a mounting pipe (6), the inside of the valve body (1) is rotatably connected with a lead screw (7), the outer circumferential surface of the lead screw (7) is threadedly connected with a threaded pipe (8), the outer circumferential surface of the threaded pipe (8) is fixedly connected with a connecting plate (9), and the top end of the connecting plate (9) is fixedly connected with a compression ring (10).

2. An accumulator right angle stop valve according to claim 1, characterized in that: The valve core (4) is conical, and the valve core (4) is fitted with the valve body (1) through a conical groove formed in the inside of the valve body (1).

3. An accumulator right angle stop valve according to claim 1, characterized in that: The left side of the valve body (1) is fixedly connected with equidistantly arranged mounting rods (13), the outer circumferential surface of the valve plug (2) is fixedly sleeved with a mounting ring (14), the mounting ring (14) is slidingly connected with the mounting rods (13) through the mounting holes formed in the inside, and the outer circumferential surface of each mounting rod (13) is threadedly connected with a nut (15).

4. An accumulator right angle stop valve according to claim 3, characterized in that: The outer circumferential surface of the valve plug (2) is provided with a first sealing ring (11), the left side of the first sealing ring (11) is in contact with the right side of the mounting ring (14), the right side of the valve plug (2) is provided with a second sealing ring (12), and the right side of the second sealing ring (12) is in contact with the inside of the valve body (1).

5. An accumulator right angle stop valve as defined in claim 1 wherein: The inside of the valve plug (2) is threadedly connected with a first sealing pipe (16), and the left side of the first sealing pipe (16) is fixedly connected with a third sealing ring (17).

6. An accumulator right angle stop valve according to claim 1, characterized in that: The inside of the valve body (1) is threadedly connected with two second sealing pipes (19), and the side close to each other of the two second sealing pipes (19) is provided with a fourth sealing ring (20).

7. An accumulator right angle stop valve as defined in claim 1 wherein: The outer circumferential surface of the lead screw (7) is fixedly sleeved with two limiting rings (18), and the outer circumferential surface of each limiting ring (18) is rotatably connected with the inside of the valve body (1).

8. The right angle stop valve for an accumulator of claim 1, wherein: The inner wall of the valve body (1) is fixedly connected with a cross rod (21), and the inside of the connecting plate (9) is slidingly connected with the outer circumferential surface of the cross rod (21).

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