Spiral valve

Abstract

The utility model discloses a spiral valve which comprises an outer shell, an installation frame, a sealing head, a power assembly, a support and sponge. The sealing head is installed at the output end of the power assembly, the power assembly is installed in the outer shell, and the power assembly is used for pushing the sealing head to upwards seal the lower end of the gas channel or downwards pulling the sealing head to be separated from the gas channel so that the gas channel and the notch can form a gas passage; the bracket is transversely mounted in the gas channel; and the sponge is arranged in the gas channel and is arranged above the bracket. The sponge is installed in the gas channel, dust is prevented from entering the valve, the sealing head and the gas channel located below the sponge are not polluted, the sealing head and the lower end of the gas channel can be well sealed, valve failure caused by the situation that the valve is not opened and closed in place is avoided, the service life of the valve is prolonged, and gas use safety is improved; and the fuel gas cannot be polluted, and the cleanliness of the fuel gas is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of valves, and more particularly to a spiral valve. Background Technology

[0002] With the improvement of socio-economic levels and changes in lifestyles, clean energy sources such as natural gas are entering thousands of households. Currently, as the demand for gas meters continues to increase, people have higher requirements for the safety and cleanliness of gas, with gas valves playing a crucial role. If contaminants enter the valve, it can contaminate the gas or cause the valve to malfunction, creating safety hazards. Most valves on the market lack proactive measures to prevent contaminant entry; if the valve becomes contaminated, it needs to be cleaned, which is time-consuming, labor-intensive, and costly to maintain.

[0003] Therefore, it is necessary to develop a spiral valve to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to design a spiral valve to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A spiral valve, comprising:

[0007] outer shell;

[0008] Mounting bracket; the mounting bracket includes a connecting block, a channel block, and a support block connected sequentially from top to bottom, with a gas channel vertically arranged inside the channel block; multiple notches are provided at the edge of the support block; the support block is installed on top of the outer casing;

[0009] Sealing head;

[0010] Power assembly; The sealing head is installed on the output end of the power assembly, which is installed inside the housing. The power assembly is used to push the sealing head upward to close the lower end of the gas channel, or to pull the sealing head downward to disengage it from the gas channel so that the gas channel and the notch form a gas passage.

[0011] The bracket is installed horizontally within the gas channel.

[0012] Sponge; the sponge is installed inside the gas channel and placed above the support.

[0013] The beneficial effects of this utility model are as follows:

[0014] This application installs a sponge inside the gas passage to prevent dust from entering the valve. The sealing head and the gas passage located below the sponge will not be contaminated, thus ensuring a good seal between the sealing head and the lower end of the gas passage. This prevents valve failure caused by improper valve opening and closing, improves valve life and gas usage safety, and ensures that the gas is clean and will not be contaminated. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a spiral valve;

[0016] Figure 2 This is a cross-sectional view of a spiral valve;

[0017] Figure 3 This is a schematic diagram of the internal structure of the outer shell in this application;

[0018] Figure 4 This is a schematic diagram of the mating structure of the outer shell, the limiting sleeve, and the movable sleeve in this application;

[0019] Figure 5 This is a schematic diagram of the structure of the stent in this application;

[0020] Figure 6 This is a schematic diagram of the connection structure between the bracket and the nut in this application;

[0021] Figure 7 This is a schematic diagram of the installation structure of the filter screen in this application;

[0022] Figure 8 This is an exploded view of the nuts, screws, sponges, and filters in this application.

[0023] Legend: 1-Motor; 2-Drive gear; 3-Outer shell; 4-Mounting base; 5-Mounting column; 6-Internal gear ring; 7-Limiting sleeve; 8-Sealing cover; 9-Screw; 10-Moving sleeve; 11-Sealing head; 12-Mounting bracket; 13-Bracket; 14-Nut; 15-Screw; 16-Sponge; 17-Filter screen; 18-First mounting hole; 19-Flange; 20-Second mounting hole; 21-Pulling block; 22-Pulling piece; 23-First limiting strip; 24-First limiting groove; 25-Second limiting groove; 26-Second limiting strip; 27-Gas passage; 28-Connecting block; 29-Channel block; 30-Bracket block; 31-Notch. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] like Figure 1 As shown, a spiral valve includes:

[0032] Outer shell 3;

[0033] Mounting bracket 12; Mounting bracket 12 includes a connecting block 28, a channel block 29, and a support block 30 connected sequentially from top to bottom. A gas channel 27 is vertically arranged inside the channel block 29. Multiple notches 31 are provided at the edge of the support block 30. The support block 30 is installed above the outer shell 3.

[0034] Sealing head 11;

[0035] Power assembly; the sealing head 11 is installed on the output end of the power assembly, the power assembly is installed inside the housing 3, the power assembly is used to push the sealing head 11 upward to close the lower end of the gas channel 27, or pull the sealing head 11 downward to disengage from the gas channel 27 so that the gas channel 27 and the notch 31 form a gas passage.

[0036] Bracket 13; Bracket 13 is installed horizontally within the gas channel 27;

[0037] Sponge 16; Sponge 16 is installed inside the gas channel 27 and placed above the support 13. In this embodiment, the sponge is formed into a cylindrical shape, and correspondingly, the gas channel is formed into a cylindrical shape.

[0038] like Figure 2 and 6 As shown in Figure 8, the spiral valve also includes a screw 15 and a nut 14. A first mounting hole 18 is provided in the middle of the sponge 16, and a second mounting hole 20 is provided in the middle of the bracket 13. A flange 19 is formed at the lower end of the nut 14. The diameter of the flange 19 is larger than the diameter of the second mounting hole 20. The nut 14 passes upward through the second mounting hole 20 and the first mounting hole 18. The flange 19 is stuck below the bracket 13. The head diameter of the screw 15 is larger than the diameter of the first mounting hole 18. The screw 15 and the nut 14 are threaded together, and the edge of the head of the screw 15 is stuck on the upper part of the sponge 16.

[0039] During installation, first pass the nut 14 through the second mounting hole 20 from bottom to top, so that the flange 19 is locked under the bracket 13. Then, insert the sponge 16, so that the first mounting hole 18 on the sponge 16 passes through the nut 14. Finally, screw the screw 15 into the nut 14. The head of the screw 15 and the bracket 13 clamp and fix the sponge 16. When replacing the sponge 16, simply lock the nut 14, remove the screw 15, and remove the sponge 16.

[0040] like Figure 2 and 7 As shown in Figure 8, the spiral valve also includes a filter screen 17, which is installed inside the gas passage 27 and positioned above the sponge 16. Adding a filter screen 17 above the sponge 16 effectively prevents larger foreign objects from entering the valve, thus protecting it.

[0041] like Figure 5 and 6 As shown, the bracket 13 includes a ring and six connecting rods. A second mounting hole 20 is located at the center of the ring. The first ends of the six connecting rods are connected to the outer wall of the ring, and the second ends are connected to the side wall of the gas channel 27. The six connecting rods are evenly distributed around the ring.

[0042] like Figure 1-4 As shown, the power assembly includes:

[0043] The outer shell 3 is divided into an upper outer shell and a lower outer shell, with the lower outer shell connected to the upper outer shell; the lower end of the mounting bracket 12 is connected to the upper outer shell.

[0044] Motor 1; Motor 1 is installed inside the lower housing;

[0045] Drive gear 2; The rotating shaft of motor 1 passes upward through the bottom of the upper outer casing and connects with drive gear 2;

[0046] The inner gear ring 6 has an upward-protruding mounting base 4 at the bottom center of the upper outer shell. The mounting base 4 has a first rotating hole at its center. A circular ring is formed in the middle of the inner gear ring 6. A gear ring is formed on the inner side of the outer wall of the inner gear ring 6. The driving gear 2 meshes with the inner gear ring 6. The circular ring is rotatably mounted on the mounting base 4. A lever 21 is provided on the top of the inner gear ring 6.

[0047] Mounting post 5; the lower end of mounting post 5 is rotatably installed in the first rotating hole;

[0048] Screw 9; a second rotating hole is provided inside the lower end of screw 9, and the upper end of mounting post 5 is installed in the second rotating hole; a lever 22 is provided on the lower end side wall of screw 9, and lever block 21 is used to move lever 22;

[0049] The movable sleeve 10 has a lower end formed into a tubular structure, and an internal thread is provided on the inner wall of the tubular structure. The tubular structure is fitted onto the screw 9, and the tubular structure and the screw 9 are threaded together. A first limiting strip 23 is vertically provided on the outer wall of the tubular structure.

[0050] Limiting sleeve 7; the limiting sleeve 7 is fitted onto the tubular structure, and a first limiting groove 24 is vertically provided on the inner wall of the limiting sleeve 7, and a first limiting strip 23 is vertically slidably installed in the first limiting groove 24; two second limiting strips 26 are vertically provided on the outer wall of the limiting sleeve 7, and correspondingly two second limiting grooves 25 are vertically provided on the inner side wall of the upper outer shell, and the two second limiting strips 26 are vertically slidably installed in the two second limiting grooves 25; the two second limiting strips 26 are arranged opposite each other on the outer wall of the limiting sleeve 7;

[0051] Sealing head 11; The upper end of the movable sleeve 10 is formed into a disc-shaped structure, and the lower end of the sealing head 11 is fitted onto the outside of the disc-shaped structure.

[0052] like Figure 2 and 3 As shown, the power assembly also includes a sealing cover 8, which is annular in shape and positioned above the limiting sleeve 7. The inner side of the sealing cover 8 contacts the outer wall of the tubular structure, while the outer side of the sealing cover 8 is positioned between the mounting bracket 12 and the upper outer casing. The sealing cover 8 prevents dust from contaminating the internal components of the outer casing 3.

[0053] Working principle: During operation, the motor 1 starts and drives the drive gear 2 to rotate. The drive gear 2 drives the internal gear ring 6 to rotate around the mounting base 4. The rotation of the internal gear ring 6 drives the lever 21 to rotate. The rotation of the lever 21 drives the lever 22 to rotate (when the sealing head 11 moves up and down, the lever 21 drives the two sides of the lever 22 respectively). The rotation of the lever 22 drives the screw 9 to rotate. Because the outer wall of the moving sleeve 10 and the limiting sleeve 7, and the limiting sleeve 7 and the outer shell 3 are all vertically sliding and circumferentially limiting, when the screw 9 rotates, the moving sleeve 10, which is threaded with the screw 9, moves vertically. The vertical movement of the moving sleeve 10 drives the sealing head 11 to move vertically. When the sealing head 11 moves upward to the lower end of the gas channel 27, the valve is closed. When the sealing head 11 moves downward and disengages from the gas channel 27, the valve is opened.

[0054] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A screw valve, characterized in that include: outer shell; Mounting bracket; the mounting bracket includes a connecting block, a channel block, and a support block connected sequentially from top to bottom, with a gas channel vertically arranged inside the channel block; multiple notches are provided at the edge of the support block; the support block is installed on top of the outer casing; Sealing head; Power assembly; The sealing head is installed on the output end of the power assembly, which is installed inside the housing. The power assembly is used to push the sealing head upward to close the lower end of the gas channel, or to pull the sealing head downward to disengage it from the gas channel, so that the gas channel and the notch form a gas passage. The bracket is installed horizontally within the gas channel. Sponge; the sponge is installed inside the gas channel and placed above the support.

2. A screw valve according to claim 1, wherein The spiral valve also includes a screw and a nut. A first mounting hole is provided in the middle of the sponge, and a second mounting hole is provided in the middle of the bracket. A flange is formed at the lower end of the nut. The diameter of the flange is larger than the diameter of the second mounting hole. The nut passes upward through the second mounting hole and the first mounting hole. The flange is positioned below the bracket. The diameter of the screw head is larger than the diameter of the first mounting hole. The screw and nut are threaded together, and the edge of the screw head is positioned to block the upper part of the sponge.

3. A screw valve according to claim 1, wherein The spiral valve also includes a filter screen, which is installed inside the gas passage and positioned above the sponge.

4. A screw valve according to claim 2, wherein The bracket includes a ring and multiple connecting rods. The center of the ring is a second mounting hole. The first end of the multiple connecting rods is connected to the outer wall of the ring, and the second end of the multiple connecting rods is connected to the side wall of the gas channel.

5. A screw valve according to claim 1, wherein The power components include: The outer casing is divided into an upper outer casing and a lower outer casing, with the lower outer casing connected to the upper outer casing; the lower end of the mounting bracket is connected to the upper outer casing. The motor is installed inside the lower housing. Drive gear; the motor's rotating shaft passes upward through the bottom of the upper housing and connects with the drive gear; Internal gear ring; a mounting base is provided with an upward protrusion at the bottom center of the upper outer shell, and a first rotating hole is provided at the center of the mounting base. A circular column is formed in the middle of the internal gear ring, and a gear ring is formed on the inner side of the outer wall of the internal gear ring. The driving gear meshes with the internal gear ring, and the circular column is rotatably mounted on the mounting base; a lever is provided at the top of the internal gear ring. Mounting column; the lower end of the mounting column is rotatably installed in the first rotating hole; Screw; a second rotating hole is provided inside the lower end of the screw, and the upper end of the mounting post is installed in the second rotating hole; a lever is provided on the side wall of the lower end of the screw, and a lever block is used to move the lever; The movable sleeve has a tubular structure at its lower end, and an internal thread is provided on the inner wall of the tubular structure. The tubular structure is fitted onto the screw rod, and the tubular structure and the screw rod are threaded together. A first limiting strip is vertically provided on the outer wall of the tubular structure. A limiting sleeve is fitted onto a tubular structure, and a first limiting groove is vertically provided on the inner wall of the limiting sleeve. A first limiting strip is vertically slidably installed in the first limiting groove. Multiple second limiting strips are vertically provided on the outer wall of the limiting sleeve, and correspondingly, multiple second limiting grooves are vertically provided on the inner side wall of the upper outer shell. The multiple second limiting strips are vertically slidably installed in the multiple second limiting grooves. Sealing head; the upper end of the movable sleeve is formed into a disc-shaped structure, and the lower end of the sealing head is fitted onto the outside of the disc-shaped structure.

6. A screw valve according to claim 5, wherein The power assembly further comprises a sealing cover which is annular, is arranged above the limiting sleeve, and has an inner side in contact with the outer wall of the tubular structure and an outer side between the connecting portion of the mounting rack and the upper outer shell.

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