Ball-type discharge valve

Abstract

The utility model relates to a kind of ball type discharge valve.The ball type discharge valve includes discharge cylinder, metal ball, connecting rod and discharge driving element, when the working state of ball type discharge valve is in sealing state, metal ball and discharge hole rigid contact seal, avoid the influence of temperature on sealing effect, sealing effect is stable and reliable;Moreover, because the surface of metal ball has wear resistance and corrosion resistance, metal ball is not easy to wear, the probability of corrosion damage after long time use is lower, with longer service life.In addition, when ball type discharge valve is in sealing state, the gravity of metal ball is heavier, and it performs well under high pressure throttling in sealing state, which can meet the demand of precise flow control.Therefore, the above-mentioned ball type discharge valve has the advantages of stable and reliable sealing effect, precise flow control and long service life.

Description

Technical Field

[0001] This utility model relates to the field of unloading equipment technology, and in particular to a ball-type unloading valve. Background Technology

[0002] With continuous societal progress, infrastructure projects are becoming increasingly large-scale, skyscrapers are rising, bridges and tunnels are extending, and individual buildings and structures are growing in size. These building components require high stability. The mature application of grouting technology has become one of the methods for reinforcing and repairing components and addressing defects. In grouting machines, the discharge valve, as a crucial component controlling material flow and pressure regulation, ensures the continuity and stability of the grouting operation.

[0003] Traditional discharge valves typically have a discharge port on the side wall at the bottom of the cylinder, and the opening and closing of the discharge port is controlled by a pneumatic butterfly valve. However, this method of controlling the opening and closing of the discharge port with a pneumatic butterfly valve often relies on elastic seals to achieve a complete seal. Elastic seals are often greatly affected by temperature, and are prone to wear with frequent use, requiring periodic replacement. Furthermore, pneumatic butterfly valves perform poorly under high-pressure throttling, failing to meet the requirements for precise flow control, resulting in low accuracy in controlling the discharge flow rate. Utility Model Content

[0004] Therefore, it is necessary to provide a ball-type discharge valve with a long service life, high sealing reliability, and the ability to accurately control the discharge flow rate.

[0005] A ball-type discharge valve, comprising:

[0006] The unloading cylinder is a hollow structure with one end open; the bottom wall of the unloading cylinder has an unloading hole.

[0007] Metal spheres with wear-resistant and corrosion-resistant surfaces;

[0008] A connecting rod is slidably installed inside the unloading cylinder; one end of the connecting rod is fixedly connected to the metal sphere.

[0009] The unloading drive component is connected to the other end of the connecting rod in a transmission manner;

[0010] The working states include unloading state and sealing state. When switching to the unloading state, the metal ball rises along the central axis of the unloading hole under the drive of the unloading drive until the metal ball completely leaves the unloading hole. When switching to the sealing state, the metal ball descends along the central axis of the unloading hole under its own gravity and / or the drive of the unloading drive until the metal ball partially enters the unloading hole to completely seal the unloading hole.

[0011] In one embodiment, the unloading cylinder includes a cylinder body and an unloading seat; the cylinder body includes a bottom plate and a side plate arranged circumferentially along the bottom plate and connected to the bottom plate; an installation through hole is formed on the bottom plate; the unloading seat is fixed to the bottom plate and forms an unloading hole communicating with the installation through hole; when a portion of the metal sphere extends into the unloading hole, there is a gap between the metal sphere and the inner wall of the installation through hole.

[0012] In one embodiment, the discharge hole includes an inner hole section and an outer hole section connected in sequence; the inner hole section is located at one end of the outer hole section facing into the cylinder, and the diameter of the inner hole section is larger than the diameter of the outer hole section; when the metal sphere seals the discharge hole, the outer wall of the metal sphere is in sealing contact with the opening edge of the outer hole section facing into the cylinder, and there is a gap between the metal sphere and the inner wall of the inner hole section.

[0013] In one embodiment, the unloading seat has a circumferentially oriented mounting groove at the outer wall edge near one end of the cylinder; the circumferential sidewall of the mounting groove is fixedly connected to the inner wall of the mounting through hole, and the axial end face of the mounting groove abuts against and is fixedly connected to the outer wall of the base plate.

[0014] In one embodiment, the discharge cylinder further includes a funnel-shaped guide plate; the large end of the guide plate is fixedly connected to the inner wall of the side plate; the small end of the guide plate is fixedly connected to the inner wall of the bottom plate; and the discharge hole is located inside the guide plate.

[0015] In one embodiment, the inner wall of the unloading cylinder is provided with a guide mounting seat; the guide mounting seat is provided with a guide sliding hole coaxially arranged with the unloading hole; the connecting rod is slidably inserted into the guide sliding hole.

[0016] In one embodiment, the unloading drive is a one-way motion cylinder; the one-way motion cylinder is installed at the end of the unloading cylinder away from the unloading hole and is located outside the unloading cylinder; the one-way motion cylinder is used to drive the connecting rod to drive the metal ball to rise along the central axis of the unloading hole.

[0017] In one embodiment, the piston rod of the one-way motion cylinder is connected to the end of the connecting rod away from the metal sphere via a flexible rope.

[0018] In one embodiment, a drive component mounting bracket is installed at the end of the unloading cylinder away from the unloading hole; the one-way motion cylinder is mounted on the drive component mounting bracket.

[0019] In one embodiment, the outer wall of the unloading cylinder at one end with the unloading hole is provided with a plurality of mounting parts spaced apart along the circumference of the unloading cylinder.

[0020] The aforementioned ball-type discharge valve, when in a sealed state, features a rigid seal between the metal ball and the discharge port, preventing the seal from being affected by temperature and ensuring a stable and reliable seal. Furthermore, the wear-resistant and corrosion-resistant surface of the metal ball reduces wear and the probability of corrosion damage after prolonged use, resulting in a long service life. Additionally, the weight of the metal ball in the sealed state provides good performance under high-pressure throttling, meeting the requirements for precise flow control. Therefore, the aforementioned ball-type discharge valve offers advantages such as stable and reliable sealing, precise flow control, and a long service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the ball discharge valve in a preferred embodiment of the present invention;

[0022] Figure 2 for Figure 1 A cross-sectional view (AA) of the ball discharge valve shown.

[0023] Figure 3 for Figure 1 The BB cross-sectional view of the ball discharge valve shown;

[0024] Figure 4 for Figure 1 The diagram shows the structural structure of the cylinder in the ball-type discharge valve.

[0025] Figure 5 for Figure 1 The diagram shows the structure of the discharge seat in the ball discharge valve.

[0026] The reference numerals in the attached figures are: 100, ball discharge valve; 110, discharge cylinder; 111, discharge hole; 1111, inner hole section; 1112, outer hole section; 112, cylinder body; 1121, bottom plate; 1122, side plate; 1123, mounting through hole; 113, discharge seat; 1131, mounting groove; 114, guide plate; 115, guide mounting seat; 120, metal ball; 130, connecting rod; 140, discharge drive component; 150, flexible rope; 160, drive component fixing frame; 170, mounting part. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] When describing positional relationships, unless otherwise specified, when an element is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements. It is also understood that when an element is referred to as being "between" two elements, it may be the only one between the two elements, or there may be one or more intermediate elements.

[0030] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0031] Appendix Figure 1 The diagram illustrates the structure of a ball-type discharge valve according to one embodiment of the present invention. For ease of explanation, the accompanying drawings only show structures relevant to embodiments of the present invention.

[0032] Please see Figures 1 to 3 In a preferred embodiment of the present invention, the ball discharge valve 100 includes a discharge cylinder 110, a metal ball 120, a connecting rod 130, and a discharge drive component 140.

[0033] The unloading cylinder 110 is a hollow structure with one open end. A discharge hole 111 is formed in the bottom wall of the unloading cylinder 110. Therefore, the discharge hole 111 is located at the bottom of the unloading cylinder 110. The surface of the metal sphere 120 is wear-resistant and corrosion-resistant. The wear-resistant and corrosion-resistant properties of the metal sphere 120 can be achieved by making the entire metal sphere 120 from a wear-resistant and corrosion-resistant metal material, or by forming a wear-resistant and corrosion-resistant coating on the surface of the metal sphere 120.

[0034] The connecting rod 130 is slidably mounted inside the unloading cylinder 110. One end of the connecting rod 130 is fixedly connected to the metal ball 120. The unloading drive component 140 is drively connected to the other end of the connecting rod 130.

[0035] The ball discharge valve 100 operates in two states: a discharge state and a sealing state. When the ball discharge valve 100 switches to the discharge state, the metal ball 120 rises along the central axis of the discharge hole 111 under the drive of the discharge drive 140 until the metal ball 120 completely leaves the discharge hole 111. When the ball discharge valve 100 switches to the sealing state, the metal ball 120 descends along the central axis of the discharge hole 111 under its own gravity and / or the drive of the discharge drive 140 until the metal ball 120 partially enters the discharge hole 111 to completely seal the discharge hole 111.

[0036] In actual use, when it is necessary to switch the working state of the ball-type discharge valve 100 to the discharge state to facilitate discharge, the discharge drive component 140 drives the connecting rod 130 to drive the metal ball 120 to rise along the central axis of the discharge hole 111 until the metal ball 120 completely leaves the discharge hole 111, thereby opening the discharge hole 111 and facilitating subsequent discharge. When it is necessary to switch the working state of the ball-type discharge valve 100 to the sealing state to facilitate material throttling, under the action of the metal ball 120's own gravity and / or the driving action of the discharge drive component 140, the metal ball 120 descends along the central axis of the discharge hole 111 and partially falls into the discharge hole 111 to completely seal the discharge hole 111 and achieve material throttling.

[0037] The aforementioned ball-type discharge valve 100, when in a sealed state, features a rigid seal between the metal ball 120 and the discharge port 111, preventing the sealing effect from being affected by temperature and ensuring a stable and reliable seal. Furthermore, due to the wear-resistant and corrosion-resistant surface of the metal ball 120, it is not easily worn and has a low probability of corrosion damage after prolonged use, resulting in a long service life. Additionally, when the ball-type discharge valve 100 is in a sealed state, the weight of the metal ball 120 provides good performance under high-pressure throttling, meeting the requirements for precise flow control. Therefore, the aforementioned ball-type discharge valve 100 offers advantages such as stable and reliable sealing, precise flow control, and a long service life.

[0038] Please refer to the following: Figure 4In some embodiments, the unloading cylinder 110 includes a cylinder body 112 and an unloading seat 113. The cylinder body 112 includes a bottom plate 1121 and a side plate 1122 arranged circumferentially along and connected to the bottom plate 1121. A mounting through hole 1123 is provided on the bottom plate 1121. The unloading seat 113 is fixed to the bottom plate 1121 and forms an unloading hole 111 communicating with the mounting through hole 1123. When a portion of the metal sphere 120 extends into the unloading hole 111, there is a gap between the metal sphere 120 and the inner wall of the mounting through hole 1123. The bottom plate 1121 can be a plate of circular, rectangular, triangular, or other shapes, and correspondingly, the cylinder body 112 is a cylindrical structure of circular, rectangular, triangular, or other shapes. Therefore, the unloading seat 113 and the cylinder 112 are formed separately to facilitate the precision machining of the unloading hole 111, so as to balance the high machining accuracy of the unloading hole 111 and the high machining ease of the unloading cylinder 110.

[0039] Please refer to the following: Figure 5 Furthermore, in some embodiments, the discharge port 111 includes an inner bore section 1111 and an outer bore section 1112 connected in sequence. The inner bore section 1111 is located at the end of the outer bore section 1112 facing into the cylinder 112, and the diameter of the inner bore section 1111 is larger than the diameter of the outer bore section 1112. When the metal sphere 120 seals the discharge port 111, the outer wall of the metal sphere 120 is in sealing contact with the opening edge of the outer bore section 1112 facing into the cylinder 112, and there is a gap between the metal sphere 120 and the inner wall of the inner bore section 1111.

[0040] Thus, the discharge hole 111 is a stepped hole, and the diameter of the inner hole section 1111 is set to be larger to ensure that the metal ball 120 can be accurately sealed on the inner hole section 1111, avoiding the situation where the metal ball 120 is deviated during the descent and fails to fall into the discharge hole 111, thereby achieving accurate sealing of the discharge hole 111 and further improving the sealing reliability of the ball discharge valve 100.

[0041] Furthermore, in some embodiments, the outer wall edge of the unloading seat 113 near the inner end of the cylinder 112 is provided with a mounting groove 1131 along the circumferential direction. The circumferential sidewall of the mounting groove 1131 is fixedly connected to the inner wall of the mounting through hole 1123, and the axial end face of the mounting groove 1131 abuts against and is fixedly connected to the outer wall of the base plate 1121. In this way, when it is necessary to fix the unloading seat 113 on the cylinder 112, the end of the unloading seat 113 with the mounting groove 1131 can be directly inserted into the mounting through hole 1123, ensuring that the axial end face of the unloading groove contacts the outer wall of the base plate 1121, eliminating the need for aligning the unloading seat 113, improving processing efficiency, and also helping to improve the positional accuracy of the unloading seat 113 on the cylinder 112.

[0042] Furthermore, in some embodiments, the unloading cylinder 110 further includes a funnel-shaped guide ramp 114. The larger end of the guide ramp 114 is fixedly connected to the inner wall of the side plate 1122. The smaller end of the guide ramp 114 is fixedly connected to the inner wall of the bottom plate 1121. The unloading hole 111 is located inside the guide ramp 114. In this way, a slope is formed between the inner wall of the side plate 1122 and the inner wall of the bottom plate 1121 to facilitate the flow of material in the cylinder 112 to the unloading hole 111, which not only makes the unloading process smoother, but also reduces the occurrence of material stagnation in the cylinder 112 during the unloading process.

[0043] In some embodiments, a guide mounting seat 115 is provided on the inner wall of the unloading cylinder 110. The guide mounting seat 115 has a guide sliding hole (not shown) coaxially arranged with the unloading hole 111. The connecting rod 130 slidably passes through the guide sliding hole. The guide mounting seat 115 facilitates the installation of the connecting rod 130 within the unloading cylinder 110. Simultaneously, the guide sliding hole guides the upward and downward paths of the connecting rod 130, enabling the metal sphere 120 to accurately seal the unloading hole 111, further improving sealing accuracy and reliability.

[0044] Specifically, there are multiple guide mounting seats 115. These multiple guide mounting seats 115 are spaced apart axially along the discharge hole 111 and are coaxially arranged with the multiple guide sliding holes. The arrangement of multiple guide mounting seats 115 provides multi-point support for the connecting rod 130, making the rising and falling movements of the connecting rod 130 smoother and preventing swaying. This further ensures that the metal ball 120 can fall stably and accurately onto the discharge hole 111, and further improves the sealing accuracy and reliability of the ball discharge valve 100.

[0045] In some embodiments, the unloading drive 140 is a one-way cylinder. The one-way cylinder is installed at the end of the unloading cylinder 110 away from the unloading hole 111 and is located outside the unloading cylinder 110. The one-way cylinder is used to drive the connecting rod 130 to move the metal ball 120 upward along the central axis of the unloading hole 111.

[0046] When the ball discharge valve 100 switches to the discharge state, the one-way motion cylinder drives the connecting rod 130 to raise the metal ball 120, completely separating it from the discharge hole 111, thus opening the discharge hole 111 and facilitating the discharge process. When the ball discharge valve 100 switches to the sealing state, the metal ball 120 falls under its own gravity, partially entering the discharge hole 111, completely sealing the discharge hole 111 and achieving material throttling. Therefore, by setting the discharge drive component 140 as a one-way motion cylinder, the descent of the metal ball 120 does not require power, thereby achieving energy saving and consumption reduction.

[0047] Furthermore, in some embodiments, the piston rod of the one-way motion cylinder is connected to the end of the connecting rod 130 away from the metal ball 120 via a flexible rope 150. The flexible rope 150 allows for a flexible connection between the piston rod of the one-way motion cylinder and the connecting rod 130. During the installation of the one-way motion cylinder and the connecting rod 130, even if there are instances where they cannot be perfectly coaxial due to machining errors, the connection between the piston rod of the one-way motion cylinder and the connecting rod 130 can be completed quickly. Furthermore, with the help of the guide slide hole, even if the piston rod of the one-way motion cylinder and the connecting rod 130 are not perfectly aligned, it can be ensured that the metal ball 120 can perfectly fall onto the discharge hole 111.

[0048] Furthermore, in some embodiments, a drive component mounting bracket 160 is installed at the end of the unloading cylinder 110 away from the unloading hole 111. The one-way motion cylinder is mounted on the drive component mounting bracket 160. The installation of the drive component mounting bracket 160 makes it easier to install the one-way motion cylinder at the end of the unloading cylinder 110 away from the unloading hole 111, and also avoids the cylinder body of the one-way motion cylinder from entering the unloading cylinder 110 and affecting the service life of the one-way motion cylinder.

[0049] Of course, in other embodiments, the one-way motion cylinder can also be directly mounted on the unloading cylinder 110, or have other structures that are different from the unloading cylinder 110 and the aforementioned drive component fixing frame 160.

[0050] In some embodiments, the outer wall of the discharge cylinder 110, which has a discharge hole 111, is provided with a plurality of mounting portions 170 spaced apart along the circumference of the discharge cylinder 110. The mounting portions 170 are provided to facilitate the installation of the discharge cylinder 110 on other equipment, thereby improving the installation convenience of the ball discharge valve 100.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A ball-type discharge valve, characterized in that, include: The unloading cylinder is a hollow structure with one end open; the bottom wall of the unloading cylinder has an unloading hole. Metal spheres with wear-resistant and corrosion-resistant surfaces; A connecting rod is slidably installed inside the unloading cylinder; one end of the connecting rod is fixedly connected to the metal sphere. The unloading drive component is connected to the other end of the connecting rod in a transmission manner; The working states include unloading state and sealing state; when switching to the unloading state, the metal ball rises along the central axis of the unloading hole under the drive of the unloading drive until the metal ball completely leaves the unloading hole; When switching to the sealed state, the metal ball descends along the central axis of the discharge hole under its own gravity and / or the driving action of the discharge drive component until the metal ball partially enters the discharge hole to completely seal the discharge hole.

2. The ball-type discharge valve according to claim 1, characterized in that, The unloading cylinder includes a cylinder body and an unloading seat; the cylinder body includes a bottom plate and a side plate arranged circumferentially along the bottom plate and connected to the bottom plate; an installation through hole is provided on the bottom plate; the unloading seat is fixed on the bottom plate and forms an unloading hole communicating with the installation through hole; when a portion of the metal sphere extends into the unloading hole, there is a gap between the metal sphere and the inner wall of the installation through hole.

3. The ball-type discharge valve according to claim 2, characterized in that, The discharge hole includes an inner hole section and an outer hole section connected in sequence; the inner hole section is located at one end of the outer hole section facing into the cylinder, and the diameter of the inner hole section is larger than the diameter of the outer hole section; when the metal sphere seals the discharge hole, the outer wall of the metal sphere is in sealing contact with the opening edge of the outer hole section facing into the cylinder, and there is a gap between the metal sphere and the inner wall of the inner hole section.

4. The ball-type discharge valve according to claim 2, characterized in that, The unloading seat has a mounting groove along its circumferential direction on the outer wall edge near one end of the cylinder; the circumferential sidewall of the mounting groove is fixedly connected to the inner wall of the mounting through hole, and the axial end face of the mounting groove abuts against and is fixedly connected to the outer wall of the base plate.

5. The ball-type discharge valve according to claim 2, characterized in that, The unloading cylinder also includes a funnel-shaped guide plate; the large end of the guide plate is fixedly connected to the inner wall of the side plate; the small end of the guide plate is fixedly connected to the inner wall of the bottom plate; and the unloading hole is located inside the guide plate.

6. The ball-type discharge valve according to claim 1, characterized in that, The inner wall of the unloading cylinder is provided with a guide mounting seat; the guide mounting seat is provided with a guide sliding hole coaxially arranged with the unloading hole; the connecting rod is slidably inserted into the guide sliding hole.

7. The ball-type discharge valve according to claim 1, characterized in that, The unloading drive component is a one-way motion cylinder; the one-way motion cylinder is installed at the end of the unloading cylinder away from the unloading hole and is located outside the unloading cylinder; the one-way motion cylinder is used to drive the connecting rod to drive the metal ball to rise along the central axis of the unloading hole.

8. The ball-type discharge valve according to claim 7, characterized in that, The piston rod of the one-way motion cylinder is connected to the end of the connecting rod away from the metal sphere via a flexible rope.

9. The ball-type discharge valve according to claim 7, characterized in that, A drive component mounting bracket is installed at the end of the unloading cylinder away from the unloading hole; the one-way motion cylinder is mounted on the drive component mounting bracket.

10. The ball-type discharge valve according to claim 1, characterized in that, The unloading cylinder has multiple mounting parts spaced apart along the circumference of the outer wall at one end of the unloading hole.

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