Automatic control valve connecting mechanism for blast furnace top pressure

Abstract

This invention discloses an automatic control valve connection mechanism for blast furnace top pressure, comprising: a pipe assembly including an interface, a connector located at the interface port, a locking member located outside the interface, and an inner tube located inside the interface; and a valve assembly including a joint disposed outside the inner tube, wherein a limit plate is provided on the outer side of the joint. This invention, through the cooperative arrangement of the connector and the locking member, allows the interface and the joint to be connected and disassembled by moving in only one direction. Furthermore, compared to flange or welded connections, it eliminates the need for external tools, improving assembly efficiency and reducing user workload.

Description

Technical Field

[0001] This invention relates to the field of automatic control valves for blast furnace top pressure, and in particular to a connection mechanism for an automatic control valve for blast furnace top pressure. Background Technology

[0002] Blast furnace smelting is the backbone of the steel industry, and the blast furnace gas pressure recovery unit (TRT) is a major energy-saving equipment in blast furnace smelting. It is usually composed of TRT stationary vanes and control valves. However, when the existing control valves are connected to the pipelines in the energy recovery unit, they are generally connected by flange structure or integral welding. This connection method is not convenient for the disassembly and maintenance of control valves, which affects the overall working efficiency of energy recovery and causes inconvenience to users. Therefore, an automatic control valve connection mechanism for blast furnace top pressure is proposed. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this section, the abstract and title of the invention. Such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0005] Therefore, the present invention aims to solve the technical problem of the inconvenience of disassembling and connecting existing control valves.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automatic control valve connection mechanism for blast furnace top pressure, comprising a pipe assembly including an interface, a connector located at the interface port, a locking member located outside the interface, and an inner pipe located inside the interface; and,

[0007] The valve assembly includes a connector disposed outside the inner tube, and a limit plate is provided on the outer side of the connector.

[0008] As a preferred embodiment of the automatic control valve connection mechanism for blast furnace top pressure of the present invention, wherein: a retaining ring is provided on the top periphery of the inner tube, a push rod is provided on the outer wall of the middle section of the inner tube, and a protruding ridge is provided on the lower edge of the inner tube;

[0009] The upper inner wall of the connector is provided with a positioning groove, and the lower inner wall of the connector is provided with a groove.

[0010] As a preferred embodiment of the automatic control valve connection mechanism for blast furnace top pressure described in this invention, the inner wall of the interface is provided with an opening that cooperates with the retaining ring, and the interface and the inner tube are movably connected.

[0011] As a preferred embodiment of the automatic control valve connection mechanism for blast furnace top pressure according to the present invention, the push rod and the positioning groove are configured to cooperate.

[0012] The protruding ridge and the groove are connected by a snap-fit ​​joint.

[0013] In a preferred embodiment of the automatic control valve connection mechanism for blast furnace top pressure described in this invention, both the positioning groove and the recess are inclined.

[0014] As a preferred embodiment of the automatic control valve connection mechanism for blast furnace top pressure of the present invention, the connecting member includes a fixing plate disposed on the outer wall of the interface, a slip ring disposed on the outer side of the fixing plate, a locking block disposed on the inner wall of the slip ring, a spring disposed on the outer side of the slip ring, and a pull plate movably connected to the end of the slip ring.

[0015] In a preferred embodiment of the automatic control valve connection mechanism for blast furnace top pressure described in this invention, the slip ring and the interface are connected by a spring to form an elastic lifting structure, and the inner diameter of the slip ring is the same as the outer diameter of the interface.

[0016] As a preferred embodiment of the automatic control valve connection mechanism for blast furnace top pressure described in this invention, the pull plate, the slip ring, and the fixing plate are all hinged connections, and the pull plate and the slip ring form a linkage structure through the fixing plate.

[0017] As a preferred embodiment of the automatic control valve connection mechanism for blast furnace top pressure of the present invention, the locking member includes a toothed ring disposed around the interface, a driven tooth disposed on the inner side of the toothed ring, a traction groove provided on the surface of the driven tooth, a balance bar disposed on the outer side of the driven tooth, an insert rod disposed at one end of the balance bar, and a locking tooth disposed at the other end of the balance bar.

[0018] As a preferred embodiment of the automatic control valve connection mechanism for blast furnace top pressure according to the present invention, the toothed ring and the driven tooth are meshed;

[0019] The traction groove is designed in a quarter-elliptical arc shape.

[0020] The beneficial effects of this invention are as follows: by using the matching of the connector and the locking component, the interface and the joint can be connected and disassembled by moving in only one direction. At the same time, compared with the flange or welding connection method of transmission, the connection and disassembly between the pipe assembly and the valve assembly can be completed without the aid of external tools, which improves the assembly efficiency between the two and reduces the workload of the user. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure of the blast furnace top pressure automatic control valve connection mechanism according to an embodiment of the present invention;

[0023] Figure 2 An exploded structural diagram of the automatic control valve connection mechanism for blast furnace top pressure according to an embodiment of the present invention;

[0024] Figure 3 A cross-sectional structural schematic diagram of the automatic control valve connection mechanism for blast furnace top pressure according to an embodiment of the present invention;

[0025] Figure 4 In one embodiment of the present invention, the blast furnace top pressure automatic control valve connection mechanism is described. Figure 3 Enlarged structural diagram at point A in the middle;

[0026] Figure 5 In one embodiment of the present invention, the blast furnace top pressure automatic control valve connection mechanism is described. Figure 3 Enlarged structural diagram at point B;

[0027] Figure 6 A schematic diagram of the connection structure between the toothed ring and the driven tooth in the automatic control valve connection mechanism for blast furnace top pressure according to an embodiment of the present invention. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0032] Example 1

[0033] Reference Figure 1 and 2 This embodiment provides a valve connection mechanism for automatic control of blast furnace top pressure.

[0034] The automatic control valve connection mechanism for blast furnace top pressure includes a pipe assembly 100 and a valve assembly 200.

[0035] Specifically, the pipe assembly 100 includes a tubular interface 101, an inner tube 104 coaxially mounted on the inner side of the interface 101, a retaining ring 104a with a T-shaped cross-section on the top periphery of the inner tube 104, a push rod 104b perpendicular to its outer side fixedly mounted in the middle section of the inner tube 104, and two protruding ribs 104c arranged in a ring along the lower edge of the inner tube 104.

[0036] The valve assembly 200 includes a connector 201 that mates with the inner tube 104. The upper inner wall of the connector 201 has a positioning groove 201a that mates with the push rod 104b. The lower inner wall of the connector 201 also has two grooves 201b that mate with the protrusion 104c.

[0037] Furthermore, the inner wall of the interface 101 is provided with an opening that cooperates with the retaining ring 104a. The retaining ring 104a is movably embedded in the opening of the inner wall of the interface 101. The retaining ring 104a can restrict the movement of the inner tube 104 in the vertical direction, while allowing the inner tube 104 to rotate relative to the interface 101 through the retaining ring 104a.

[0038] The positioning groove 201a is inclined downward in a clockwise direction. It can cooperate with the push rod 104b. That is, when the push rod 104b moves vertically downward, it can rotate clockwise under the action of the inclined surface of the positioning groove 201a, and drive the inner tube 104 to rotate clockwise synchronously, so as to facilitate the subsequent cooperation between the protrusion 104c and the groove 201b.

[0039] The protruding rib 104c and the groove 201b are both inclined downward in a clockwise direction. That is, the protruding rib 104c can be moved downward and rotated clockwise simultaneously, and rotated into the groove 201b to engage with the groove 201b, thereby completing the connection between the inner tube 104 and the connector 201.

[0040] When connecting interface 101 and connector 201, the push rod 104b can be aligned with the starting point of the positioning groove 201a first. Then, the interface 101 is moved downwards. At this time, the push rod 104b gradually enters the positioning groove 201a and rotates under the action of the inclined surface of the positioning groove 201a. This causes the entire inner tube 104 to rotate clockwise, allowing the convex rib 104c to gradually rotate into the groove 201b, completing the snap-fit ​​between the convex rib 104c and the groove 201b. At this time, the connection between interface 101 and connector 201 is completed. Through the matching settings between the push rod 104b and the positioning groove 201a, and the convex rib 104c and the groove 201b, the user only needs to press the interface 101 to directly complete the initial connection between connectors 201, which is convenient to operate.

[0041] Example 2

[0042] Reference Figure 1-4 This is the second embodiment of the present invention, which is based on the previous embodiment and differs from the previous embodiment in that:

[0043] Two sets of connectors 102 are also provided on both sides of the interface 101 port.

[0044] Specifically, the connector 102 includes an L-shaped fixing plate 102a integrally disposed on the outer wall of the interface 101, and a slip ring 102b is movably installed between the fixing plate 102a and the interface 101. The inner diameter of the slip ring 102b is matched with the outer diameter of the interface 101 so that the slip ring 102b and the interface 101 fit together. A locking block 102c is also provided at the bottom of the protrusion on the inner wall of the slip ring 102b. A spring 102d for elastic support is fixedly connected to the lower part of the inner protrusion of the slip ring 102b. A pull plate 102e is movably connected to the end of the support column on the surface of the slip ring 102b.

[0045] The outer side wall of the connector 201 is symmetrically provided with limiting plates 202 that can be snapped into the connector 102.

[0046] Furthermore, the slip ring 102b can slide flexibly outside the interface 101, while being elastically supported by the spring 102d, so that the slip ring 102b can quickly return to its original position under the support of the spring 102d.

[0047] The end of the pull plate 102e is hinged to the diagonal bar at the end of the fixed plate 102a. At the same time, the middle section of the pull plate 102e is hinged to a vertical support provided on the surface of the slip ring 102b. When the slip ring 102b moves toward the pull plate 102e, the pull plate 102e can be flipped under the pushing of the support on the surface of the slip ring 102b and the limiting cooperation of the diagonal bar at the end of the fixed plate 102a. This allows the pull plate 102e to rotate around the hinge point with the diagonal bar at the end of the fixed plate 102a, and to pass smoothly through the limiting plate 202 with the slip ring 102b, so as to facilitate the subsequent use of the pull plate 102e and the limiting plate 202.

[0048] When connecting the pipe assembly 100 and the valve assembly 200, the slip ring 102b is first pushed to compress the spring 102d towards the joint 201. At this time, the pull plate 102e is pushed by the surface support of the slip ring 102b and restricted by the end inclined rod of the fixed plate 102a. It rotates outward around the hinge point with the surface support of the slip ring 102b and the end inclined rod of the fixed plate 102a until it rotates beyond the vertical projection of the limit plate 202. Then, the pipe assembly 100 and the valve assembly 200 are connected. When the pipe assembly 100 and the valve assembly 200 are fully connected... At this time, the pull plate 102e moves to the outside of the limiting plate 202, and the slip ring 102b is released. The slip ring 102b then quickly resets under the elastic support of the spring 102d, and then pulls the pull plate 102e again. This allows the pull plate 102e to rotate and reset to a horizontal state around the hinge point of its connection with the end of the inclined rod of the fixed plate 102a under the drive of the slip ring 102b. It then cooperates with the limiting plate 202, so that under the elastic pull of the spring 102d, it can tighten the connection between the pipe assembly 100 and the valve assembly 200, thereby strengthening the connection stability between the pipe assembly 100 and the valve assembly 200.

[0049] Example 3

[0050] Reference Figure 1-6 This is the third embodiment of the present invention, which is based on the previous embodiment and differs from the previous embodiment in that;

[0051] The automatic control valve connection mechanism for blast furnace top pressure also includes a locking element 103 located outside the interface 101.

[0052] Specifically, the locking component 103 includes a toothed ring 103a movably embedded in the periphery of the interface 101. The toothed ring 103a can rotate horizontally around the periphery of the interface 101 and is located above the slip ring 102b. A pair of driven teeth 103b are arranged in a ring array on the inner side of the toothed ring 103a, and each driven tooth 103b has a traction groove 103c on its surface. A balance bar 103d is also provided on the outer side of the driven teeth 103b. The middle section of the balance bar 103d is hinged to the inner wall of the interface 101, and a plug rod 103e that cooperates with the traction groove 103c is integrally connected to one end of the balance bar 103d near the driven teeth 103b. At the same time, a locking tooth 103f that can engage with the locking block 102c is fixedly provided at the other end of the balance bar 103d.

[0053] Preferably, the outer surface of the toothed ring 103a is also arranged with several anti-slip ridges in a ring to increase the friction between the user's hand and the toothed ring 103a, making it easier for the user to rotate the toothed ring 103a.

[0054] Furthermore, the driving teeth of the gear ring 103a are disposed on its inner surface, meaning that the two driven teeth 103b mesh with the gear ring 103a on its inner side. When the gear ring 103a rotates horizontally, it can synchronously drive the driven teeth 103b to rotate.

[0055] The traction groove 103c is set in a quarter-elliptical arc shape, and the insertion rod 103e is located inside the traction groove 103c. When the toothed ring 103a drives the driven tooth 103b to rotate, the traction groove 103c can move synchronously with the rotation of the driven tooth 103b. At this time, the contact point between the traction groove 103c and the insertion rod 103e changes, so that the insertion rod 103e can drive the balance bar 103d to rotate as the angle of the traction groove 103c is adjusted, thereby controlling the connection relationship between the locking tooth 103f and the locking block 102c.

[0056] When the user needs to separate the pipe assembly 100 from the valve assembly 200, since the locking tooth 103f and the locking block 102c are in a locked and limited state, the user must first rotate the toothed ring 103a clockwise. The toothed ring 103a drives the driven tooth 103b to rotate clockwise synchronously, thereby causing the balance bar 103d to rotate under the cooperation of the insert rod 103e and the traction groove 103c. This causes one end of the locking tooth 103f of the balance bar 103d to move down and disengage from the locking block 102c, thus releasing the limiting position of the slip ring 102b. In addition, the user can push the slip ring 102b downward to separate the pull plate 102e from the limit plate 202, thereby pulling the valve assembly 200 out of the pipe assembly 100. Through the cooperation of the connector 102 and the locking member 103, the interface 101 and the joint 201 only need to move in one direction to complete the connection and disassembly. At the same time, compared with the flange or welding connection method of transmission, the connection and disassembly between the pipe assembly 100 and the valve assembly 200 can be completed without the aid of external tools, which improves the assembly efficiency between the two and reduces the workload of the user.

[0057] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0058] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0059] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A blast furnace top pressure automatic control valve connection mechanism, characterized by: include, A pipe assembly (100) includes an interface (101), a connector (102) located at the port of the interface (101), a locking member (103) located outside the interface (101), and an inner tube (104) located inside the interface (101); and, The valve assembly (200) includes a connector (201) disposed outside the inner tube (104), and a limit plate (202) is provided on the outer side of the connector (201). A retaining ring (104a) is provided on the top periphery of the inner tube (104), a push rod (104b) is provided on the outer wall of the middle section of the inner tube (104), and a protruding ridge (104c) is provided on the lower edge of the inner tube (104). The upper inner wall of the connector (201) is provided with a positioning groove (201a), and the lower inner wall of the connector (201) is provided with a groove (201b). The inner wall of the interface (101) is provided with an opening that cooperates with the retaining ring (104a), and the interface (101) and the inner tube (104) are connected in a movable manner; Both the positioning groove (201a) and the recess (201b) are inclined.

2. The automatic control valve connection mechanism for the top pressure of a blast furnace according to claim 1, characterized in that: The push rod (104b) and the positioning groove (201a) are configured to fit together; The protruding ridge (104c) and the groove (201b) are connected by a snap-fit.

3. The automatic control valve connection mechanism for the top pressure of a blast furnace according to claim 2, characterized in that: The connector (102) includes a fixing plate (102a) disposed on the outer wall of the interface (101), a slip ring (102b) disposed on the outer side of the fixing plate (102a), a locking block (102c) disposed on the inner wall of the slip ring (102b), a spring (102d) disposed on the outer side of the slip ring (102b), and a pull plate (102e) movably connected to the end of the slip ring (102b).

4. The automatic control valve connection mechanism for the top pressure of a blast furnace according to claim 3, characterized in that: The slip ring (102b) and the interface (101) form an elastic lifting structure through the spring (102d), and the inner diameter of the slip ring (102b) is the same as the outer diameter of the interface (101).

5. The automatic control valve connection mechanism for the top pressure of a blast furnace according to claim 4, characterized in that: The pull plate (102e), slip ring (102b), and fixing plate (102a) are all hinged. The pull plate (102e) and slip ring (102b) form a linkage structure through the fixing plate (102a).

6. The automatic control valve connection mechanism for the top pressure of a blast furnace according to claim 5, characterized in that: The locking member (103) includes a toothed ring (103a) disposed around the interface (101). The inner side of the toothed ring (103a) is provided with a driven tooth (103b). The surface of the driven tooth (103b) is provided with a traction groove (103c). The outer side of the driven tooth (103b) is provided with a balance bar (103d). One end of the balance bar (103d) is provided with a plug (103e), and the other end of the balance bar (103d) is provided with a locking tooth (103f).

7. The automatic control valve connection mechanism for the top pressure of a blast furnace according to claim 6, characterized in that: The toothed ring (103a) and the driven tooth (103b) are meshed together; The traction groove (103c) is set in a quarter-elliptical arc shape.

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