A valve device

Abstract

The utility model discloses a valve device in the field of valve technology, comprising a valve body, comprising a main body, which is a straight-cylindrical structure and has a first cavity, a discharge pipe, which is arranged on the outside of the main body and has a second cavity, and the second cavity is communicated with the first cavity; a blocking plate, which is arranged at the rear end of the main body and is used to block the first cavity; a baffle, which is arranged at the front end of the main body and has an inlet, and the inlet is communicated with the first cavity; a valve plate, which is arranged in the first cavity; an adjusting component, which comprises a rotating drive member, an adjusting screw, one end of which is connected to the rotating drive member, and the other end of which passes through the blocking plate and extends into the first cavity and is rotatably connected to the valve plate, and an adjusting nut, which is arranged on the outside of the blocking plate and is threadedly connected to the adjusting screw; the utility model enables the valve plate to only perform axial displacement during movement but not circumferential rotation, so that the resistance exerted by the asphalt on it is smaller, which greatly reduces the valve opening resistance, thereby facilitating the operator to open the valve and avoiding the risk of being unable to unload.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve device. Background Art

[0002] Asphalt tank truck is a vehicle specially used for transporting liquid asphalt, usually used in road construction, repair and construction projects. Its main component is the asphalt tank body, which is equipped with insulation and heating facilities to maintain the fluidity and temperature of asphalt during transportation. To facilitate the unloading of asphalt, a DN150 unloading pipe is reserved at the tail of the tank body, and a DN150 to DN150 valve is connected externally.

[0003] However, at present, when the traditional valve used for asphalt medium unloading is opened, the valve plate not only needs to be displaced axially, but also needs to be rotated circumferentially. However, due to the strong viscosity of asphalt, the valve plate will be subject to great resistance, making it difficult to open the valve, and there is a risk of being unable to unload. Utility Model Content

[0004] The utility model aims to provide a valve device, which solves the technical problem of difficulty in opening valves in the prior art.

[0005] The utility model discloses a valve device, comprising:

[0006] Valve body, including

[0007] The main body is a straight cylindrical structure with a first cavity with two ends open.

[0008] A discharge pipe is arranged outside the main body and has a second cavity with two ends opened, and the second cavity is connected to the first cavity;

[0009] A blocking plate, disposed at the rear end of the main body, for blocking the first cavity;

[0010] A baffle, disposed at the front end of the main body, having an inlet, and the inlet is communicated with the first cavity;

[0011] A valve plate is arranged in the first cavity and can be fitted with the baffle to seal the feed inlet;

[0012] Adjustment components, including

[0013] Rotating drive element,

[0014] The adjusting screw has one end connected to the rotary drive member, and the other end passes through the blocking plate and extends into the first cavity and then is rotatably connected to the valve plate.

[0015] An adjusting nut is arranged on the outer side of the blocking plate and is threadedly connected with the adjusting screw.

[0016] The present application sets a rotational connection between the adjusting screw and the valve plate so that the valve plate only performs axial displacement during movement but does not perform circumferential rotation, so that the resistance exerted by the asphalt is smaller, thereby greatly reducing the valve opening resistance, thereby facilitating operators to open the valve and avoiding the risk of being unable to unload.

[0017] On the basis of the above technical solution, the solution of this application can also be improved as follows:

[0018] Preferably, the valve plate is in a disc-shaped structure, and has a coaxially arranged blocking portion on one side close to the baffle;

[0019] The sealing portion has a truncated cone structure, and the circumferential side surface of the sealing portion can fit with the circumferential inner wall of the feed port; by adopting this solution, the sealing portion can extend into the feed port to seal it, and its inclined surface design can keep the two in full fit, and extend the contact area, thereby improving the sealing effect of the valve plate, making the seal tighter and more reliable, and reducing the possibility of leakage.

[0020] Preferably, the first cavity is of cylindrical structure, and the outer periphery of the valve plate fits with the inner wall of the first cavity; this solution plays a role of limiting guidance and improves the stability of movement.

[0021] Preferably, the end of the adjusting screw located in the first cavity has a limiting cylinder, the diameter of the limiting cylinder is smaller than that of the adjusting screw, and the limiting cylinder is coaxially arranged with the adjusting screw;

[0022] The valve plate is provided with a limiting hole at the center thereof, which matches the limiting cylinder. The limiting cylinder is provided with a plug after passing through the limiting hole.

[0023] The outer circumference of the limiting cylinder is provided with an annular groove, and a limiting ring is movably sleeved in the annular groove, one side of the limiting ring is fixedly connected to the valve plate, and the other side is fixedly connected to the plug;

[0024] Among them, the limit ring is composed of multiple fan rings. By adopting this solution, the valve plate and the adjusting screw can be stably connected in rotation, and the structure has high strength, is easy to produce and assemble, is not easy to loosen or detach, and has a prolonged service life.

[0025] Preferably, it also includes

[0026] A first flange is fixedly sleeved on the front end of the main body, and the inner wall of the first flange is fixedly connected to the outer periphery of the baffle;

[0027] The second flange is fixedly sleeved on the outlet end of the discharge pipe; adopting this solution, the valve is easy to install and fix, convenient to disassemble and maintain, and has improved sealing and reduced the probability of accidental leakage.

[0028] Preferably, the rotary drive member comprises

[0029] A fulcrum nut, coaxially arranged with the adjusting screw;

[0030] U-shaped handle, including

[0031] The middle rod is perpendicular to the adjusting screw, and the center of one side is fixedly connected to the end of the adjusting screw, and the center of the other side is fixedly connected to the fulcrum nut.

[0032] Two side rods are respectively arranged at the two ends of the middle rod. The side rods are parallel to the adjusting screw and are located on the side of the middle rod away from the blocking plate. The adoption of this solution can facilitate operators to drive the adjusting screw to rotate, which saves time and effort, is simple to operate, and is easy to use, and can meet the use under various working conditions.

[0033] Preferably, the discharge pipe is a bent pipe or an arc-shaped pipe, and is deflected toward the side and rear of the main body; by adopting this solution, a disc-shaped insulation head can be matched, thereby effectively freeing up assembly space, shortening the length of the main body, making the valve body structure more compact, making it difficult for asphalt to solidify, and shortening the adjusting screw, thereby shortening the torque, reducing the force to be applied when opening the valve, and facilitating opening.

[0034] Through the above technical solution, the utility model achieves the following beneficial effects:

[0035] 1. The present application sets a rotation connection between the adjusting screw and the valve plate, so that the valve plate only performs axial displacement during movement, but does not perform circumferential rotation, so that the resistance exerted by the asphalt is small, which greatly reduces the valve opening resistance, thereby facilitating the operator to open the valve and avoiding the risk of being unable to unload;

[0036] 2. The present application allows the sealing part to extend into the feed inlet to seal it, and its inclined surface design enables the two to maintain full fit, and extends the contact area, thereby improving the sealing effect of the valve plate, making the seal tighter and more reliable, and reducing the possibility of leakage;

[0037] 3. The application provides a limit cylinder, a plug and a limit ring, so that the valve plate and the adjusting screw are firmly connected in rotation, and the structure has high strength, is easy to produce and assemble, is not easy to loosen and detach, and has a long service life;

[0038] 4. This application designs the discharge pipe to be a bent pipe or an arc-shaped pipe, and the outlet is deflected toward the side and rear of the main body, which can match the disc-shaped insulation head, thereby effectively freeing up assembly space, shortening the length of the main body, making the valve body structure more compact, making it difficult for asphalt to solidify, and shortening the adjusting screw, thereby shortening the torque, reducing the force required to open the valve, and making it easier to open. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 This is a schematic diagram of the structure of the valve device according to a specific embodiment of the utility model;

[0041] Figure 2 for Figure 1 The structure diagram of the valve device shown is from another perspective;

[0042] Figure 3 for Figure 1 A front cross-sectional view of the valve device shown;

[0043] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0044] Figure 5 for Figure 1 A schematic diagram of the structure of the first flange and the baffle in the valve device shown;

[0045] Figure 6 for Figure 1 A schematic diagram of the structure of a valve plate in the valve device shown;

[0046] Description of reference numerals:

[0047] 1. Valve body; 2. Blocking plate; 3. Baffle plate; 4. Valve plate; 5. Adjustment assembly; 6. First flange; 7. Second flange;

[0048] 11. Main body; 12. Discharge pipe; 31. Inlet; 41. Blocking part; 51. Rotary drive member; 52. Adjusting screw; 53. Adjusting nut;

[0049] 111, first cavity; 121, second cavity; 511, fulcrum nut; 512, U-shaped handle; 521, limiting cylinder; 522, plug; 523, limiting ring;

[0050] 521a, annular groove; 523a, fan ring; 512a, middle rod; 512b, side rod. DETAILED DESCRIPTION

[0051] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0052] First of all, it should be noted that in the following description, some directional words, such as "front end" and "rear end", etc., are used to clearly explain the technical solution of the utility model. They are all analogous to the normal directions of the parts in the valve device. For example, the end that docks with the discharge pipe on the tank body is the front end, and the other end is the rear end. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the utility model.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0054] In this application, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0055] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0056] Example:

[0057] like Figure 1 and Figure 2 As shown, an embodiment of the present application discloses a valve device for unloading asphalt from an asphalt liquid tank truck, and the structure includes: a valve body 1, a plugging plate 2, a baffle 3, a valve plate 4 and an adjusting assembly 5.

[0058] The valve body 1 includes a main body 11 and a discharge pipe 12, which are preferably integrally formed to ensure a sealing effect, but are not limited thereto and may also be bolted and are not limited thereto.

[0059] Specifically, the main body 11 is a straight cylindrical structure, having a first cavity 111 with openings at both ends; the discharge pipe 12 is arranged outside the main body 11, having a second cavity 121 with openings at both ends, and the second cavity 121 is connected to the first cavity 111.

[0060] The plugging plate 2 is arranged at the rear end of the main body 11 to seal the first cavity 111. The shape and size of the plugging plate 2 match the rear end face of the main body 11, and the two are welded and fixed, which has high regularity, good sealing effect, and saves materials.

[0061] The baffle 3 is arranged at the front end of the main body 11, and has an inlet 31, and the inlet 31 is communicated with the first cavity 111. The shape and size of the baffle 3 match the front end surface of the main body 11, it has high regularity, good sealing effect, and saves manufacturing materials; the inlet 31 is a circular structure and is coaxially arranged with the first cavity 111, which improves the sealing effect.

[0062] The valve plate 4 is arranged in the first cavity 111 and can fit with the baffle plate 3 to block the feed inlet 31 .

[0063] The adjustment assembly 5 includes a rotary drive member 51 , an adjustment screw 52 and an adjustment nut 53 .

[0064] Specifically, the rotary drive member 51 makes it convenient for the operator to drive the adjusting screw 52 to rotate, thereby reducing labor intensity and improving operating effects; one end of the adjusting screw 52 is connected to the rotary drive member 51, and the other end passes through the blocking plate 2 and extends into the first cavity 111 and is rotatably connected to the valve plate 4, so as to drive the valve plate 4 to move. The adjusting screw 52 is coaxially arranged with the valve plate 4 to ensure uniform stress distribution and improve structural strength; the adjusting nut 53 is arranged on the outside of the blocking plate 2 and is threadedly connected to the adjusting screw 52; the adjusting nut 53 is welded to the center of the outer side of the blocking plate 2, which improves the structural stability and ensures that the adjusting screw 52 can be in the center of the first cavity 111.

[0065] During installation, the front end of the main body 11 of the valve body 1 is connected to the discharge pipe 12 reserved at the rear of the tank body, and then the outlet end of the discharge pipe 12 of the valve body 1 is connected to the discharge pipeline.

[0066] When opening the valve, the operator uses the rotary drive member 51 to drive the adjusting screw 52 to rotate, and the adjusting screw 52 and the adjusting nut 53 rotate relative to each other, thereby gradually withdrawing from the first cavity 111, thereby driving the valve plate 4 and the baffle 3 to separate, so that the valve plate 4 no longer blocks the feed inlet 31, so that the asphalt in the tank body can enter the first cavity 111 through the feed inlet 31, and then enter the second cavity 121 connected thereto, and finally enter the discharge pipe.

[0067] By setting the adjusting screw 52 and the valve plate 4 to be rotationally connected, the valve plate 4 only performs axial displacement during movement without circumferential rotation, so that the resistance applied by the asphalt is smaller, which greatly reduces the valve opening resistance, making it easier for operators to open the valve and avoiding the risk of being unable to unload.

[0068] In some embodiments, Figures 3-4 As shown, in order to improve the valve sealing effect, the valve plate 4 is designed to have a disc-shaped structure, and a coaxially arranged sealing portion 41 is provided on the side close to the baffle 3; the sealing portion 41 is a truncated cone-shaped structure, and the circumferential side surface of the sealing portion 41 can fit with the circumferential inner wall of the feed inlet 31.

[0069] Through the above-mentioned design of the valve plate 4 and the feed port 31, the sealing portion 41 can extend into the feed port 31 to seal it. Its inclined surface design can ensure that it is fully fitted and extend the contact area, thereby improving the sealing effect of the valve plate, making the seal tighter and more reliable and reducing the possibility of leakage.

[0070] Based on the above scheme, if Figures 3-4 As shown, the first cavity 111 is a cylindrical structure, and the outer periphery of the valve plate 4 fits with the inner wall of the first cavity 111 .

[0071] When the valve is opened, the valve plate 4 can slide along the inner wall of the first cavity 111, thereby playing a role of limiting guidance and improving the stability of movement.

[0072] In some embodiments, Figure 1 and Figures 3 to 5 As shown, in order to improve the connection stability of the valve plate 4, the end of the adjusting screw 52 located in the first cavity 111 is provided with a limiting cylinder 521, the diameter of the limiting cylinder 521 is smaller than that of the adjusting screw 52, ​​and the limiting cylinder 521 is coaxially arranged with the adjusting screw 52; a limiting hole 42 adapted to the limiting cylinder 521 is provided in the center of the valve plate 4, and a plug 522 is provided after the limiting cylinder 521 passes through the limiting hole 42; an annular groove 521a is provided on the outer periphery of the limiting cylinder 521, and a limiting ring 523 is movably provided in the annular groove 521a, and one side of the limiting ring 523 is fixedly connected to the valve plate 4, and the other side is fixedly connected to the plug 522.

[0073] Among them, the limiting ring 523 is composed of multiple sector rings 523a; in this embodiment, it is composed of two sector rings 523a, but it is not limited to this, and it can also be three or more, without specific limitation.

[0074] During installation, firstly, the valve plate 4 is movably mounted on the limiting cylinder 521 through the limiting hole 42, and then a plurality of fan rings 523a are assembled into a limiting ring 523 in the annular groove 521a, and then the limiting ring 523 and the valve plate 4 are welded and fixed, and then a plug 522 is mounted on the end of the limiting cylinder 521, and the plug 522 and the limiting ring 523 are welded to ensure the stability of the structure of the limiting ring 523.

[0075] Through the above design, the valve plate 4 and the adjusting screw 52 can be stably connected in rotation, and the structure has high strength, is easy to produce and assemble, is not easy to loosen or detach, and has a prolonged service life.

[0076] In some embodiments, Figures 1 to 3 As shown, in order to facilitate installation and fixation, it also includes

[0077] The first flange 6 is fixedly sleeved on the front end of the main body 11, and the inner wall of the first flange 6 is fixedly connected to the outer periphery of the baffle 3;

[0078] The second flange 7 is fixedly sleeved on the outlet end of the discharge pipe 12 .

[0079] Preferably, the first flange 6 and the baffle 3 are integrally formed, thereby facilitating assembly and production and improving manufacturing efficiency.

[0080] The first flange 6 and the second flange 7 are provided to facilitate installation and fixation of the valve, facilitate disassembly and maintenance, improve sealing performance, and reduce the probability of accidental leakage.

[0081] In some embodiments, Figure 2 As shown, the rotary drive member 51 is further designed to include a fulcrum nut 511 and a U-shaped handle 512 .

[0082] Specifically, the fulcrum nut 511 is coaxially arranged with the adjusting screw 52 to avoid eccentric movement during driving; the U-shaped handle 512 includes a middle rod 512a and two side rods 512b;

[0083] Among them, the middle rod 512a is perpendicular to the adjusting screw 52, ​​and the center of one side is fixedly connected to the end of the adjusting screw 52, ​​and the center of the other side is fixedly connected to the fulcrum nut 511, and the two side rods 512b are respectively arranged at both ends of the middle rod 512a, and the side rods 512b are parallel to the adjusting screw 52 and are located on the side of the middle rod 512a away from the blocking plate 2.

[0084] When driving, the operator can manually open it through the U-shaped handle 512, or place the tilting rod on the two side rods 512b to achieve force opening; and when the vehicle has a box at the rear that is inconvenient to operate, the sleeve can be put on the fulcrum nut 511 to achieve force opening.

[0085] The above-mentioned design of the rotary drive member 51 can facilitate the operator to drive the adjusting screw 52 to rotate, which saves time and effort, is simple to operate, and is easy to use, and can meet the use under various working conditions.

[0086] In some embodiments, Figures 1-2As shown, the discharge pipe 12 is a bent pipe or an arc-shaped pipe, and is deflected toward the side and rear of the main body 11; the outlet of the discharge pipe 12 is 60° toward the side and rear of the main body 11, but is not limited to this and is not limited to this.

[0087] It should be noted that the conventional valve body 1 is an L-shaped structure, that is, the main body 11 and the discharge pipe 12 are both straight pipes with perpendicular axes. Since the outer insulation head of most tank trucks is in a disc shape, in order to avoid interference between the second flange 7 of the valve and the insulation head, the main body 11 in the conventional design is relatively long as a whole, resulting in a problem of a loose structure, which makes it easy for asphalt to solidify in the first cavity 111, and will cause the adjusting screw 52 to increase by an equal amount, making the adjusting screw 52 have a longer torque and difficult to open, resulting in a poor overall use effect.

[0088] By designing the discharge pipe 12 to be a bent pipe or an arc-shaped pipe, and the outlet is deflected toward the side and rear of the main body 11, it can match the dish-shaped insulation head, thereby effectively freeing up assembly space, shortening the length of the main body 11, making the valve body 1 more compact, making it difficult for asphalt to solidify, and shortening the adjusting screw 52, ​​thereby shortening the torque, reducing the force to be applied when opening the valve, and facilitating opening.

[0089] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0090] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A valve device, characterized in that: include: Valve body (1), including The main body (11) is a straight cylindrical structure, having a first cavity (111) with openings at both ends. A discharge pipe (12) is arranged outside the main body (11), and has a second cavity (121) with openings at both ends, and the second cavity (121) is connected to the first cavity (111); A blocking plate (2), arranged at the rear end of the main body (11), and used for blocking the first cavity (111); A baffle (3) is arranged at the front end of the main body (11), and has an inlet (31), and the inlet (31) is communicated with the first cavity (111); a valve plate (4), arranged in the first cavity (111), capable of being fitted with the baffle plate (3) to seal the feed inlet (31); The regulating assembly (5) comprises A rotating drive member (51), An adjusting screw (52) has one end connected to the rotating drive member (51) and the other end passing through the blocking plate (2) and extending into the first cavity (111) and then being rotationally connected to the valve plate (4); an adjusting nut (53) is arranged on the outside of the blocking plate (2) and is threadedly connected to the adjusting screw (52).

2. The valve device according to claim 1, characterized in that The valve plate (4) is in a disc-shaped structure, and has a coaxially arranged blocking portion (41) on a side close to the baffle (3); The blocking portion (41) is of a truncated cone structure, and the circumferential side surface of the blocking portion (41) is capable of fitting with the circumferential inner wall of the feed opening (31).

3. The valve device according to claim 2, characterized in that The first cavity (111) is of a cylindrical structure, and the outer periphery of the valve plate (4) fits in contact with the inner wall of the first cavity (111).

4. The valve device according to claim 1, characterized in that The end of the adjusting screw (52) located in the first cavity (111) is provided with a limiting cylinder (521), the diameter of the limiting cylinder (521) is smaller than that of the adjusting screw (52), and the limiting cylinder (521) is coaxially arranged with the adjusting screw (52); A limiting hole (42) adapted to the limiting cylinder (521) is provided at the center of the valve plate (4); the limiting cylinder (521) is provided with a plug (522) after passing through the limiting hole (42); The outer circumference of the limiting cylinder (521) is provided with an annular groove (521a), and a limiting ring (523) is movably sleeved in the annular groove (521a); ​​one side of the limiting ring (523) is fixedly connected to the valve plate (4), and the other side is fixedly connected to the plug (522); Wherein, the limiting ring (523) is composed of a plurality of sector rings (523a) assembled together.

5. The valve device according to claim 1, characterized in that Also includes A first flange (6) is fixedly sleeved on the front end of the main body (11), and the inner wall of the first flange (6) is fixedly connected to the outer periphery of the baffle (3); The second flange (7) is fixedly sleeved on the outlet end of the discharge pipe (12).

6. The valve device according to claim 1, characterized in that The rotary drive member (51) comprises A fulcrum nut (511) is coaxially arranged with the adjusting screw (52); U-shaped handle (512), including The middle rod (512a) is perpendicular to the adjusting screw (52), and the center of one side is fixedly connected to the end of the adjusting screw (52), and the center of the other side is fixedly connected to the fulcrum nut (511). Two side rods (512b) are respectively arranged at two ends of the middle rod (512a); the side rods (512b) are parallel to the adjusting screw rod (52) and are located on a side of the middle rod (512a) away from the blocking plate (2).

7. The valve device according to claim 1, characterized in that The discharge pipe (12) is a bent pipe or an arc-shaped pipe, and is deflected toward the side and rear of the main body (11).

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