Molten metal stop valve

Abstract

The utility model discloses a molten metal stop valve which comprises a valve body, conveying pipes fixedly connected to the left end and the right end of the valve body, an operating rod rotationally installed at the upper end of the valve body and a heating cylinder, the heating cylinder is fixedly connected to the outer side of the valve body, and a heating device and a protective cover are installed in the heating cylinder. The protective covers are arranged at the upper end and the lower end of the conveying pipe in a sleeving mode correspondingly, the fixed cylinder is fixedly connected to the upper end of the valve body, an operation rod is arranged in the middle of the fixed cylinder in a penetrating mode, and a self-starting-preventing mechanism is arranged at the upper end of the fixed cylinder. According to the molten metal stop valve, a warning mark is arranged on the outer side of the heating cylinder, a very good warning effect can be achieved, a protective cover is arranged on the outer side of a conveying pipe in a covering mode, the conveying pipe is separated, scalding is prevented, an operation rod can be locked through the arrangement of an anti-self-starting mechanism, the operation rod is prevented from shaking in the long-term use process, and therefore the safety of the molten metal stop valve is improved. And self-starting of the operating rod is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stop valve, concretely is a kind of metal melt stop valve. BACKGROUND

[0002] Metal melt stop valve belongs to one kind of stop valve, it is used in the pipeline system of high-temperature molten salt and metal melt and can control the valve of metal melt flow, can cut off the flow of metal medium;

[0003] Such as announcement number CN206513842U, discloses a kind of metal melt stop valve, it includes a valve body, the valve body is opened with a feed inlet and a discharge outlet, the feed inlet is connected with discharge outlet by a liquid channel, the metal melt stop valve also includes the screw rod of blocking liquid channel and the adjusting handle for adjusting the movement of screw rod, the screw rod includes the body of a cone at one end, the liquid channel includes the taper hole that can be inserted into the body of a cone, a feed channel and a discharge channel, the feed channel is communicated with the taper hole below, the discharge channel is communicated with the taper hole above.The metal melt stop valve of the utility model guarantees the cleanliness of metal melt;Guarantee that metal melt cannot solidify in liquid channel, cannot block liquid channel;The discharge amount of metal melt is accurately controlled by the cooperation of screw rod and taper hole;Change the discharge direction of metal melt, prevent high-temperature metal melt from splashing out and scald personnel;And a metal melt stop valve can be repeatedly used for a long time, low in price;

[0004] However, prior art exists without setting warning sign, warning effect is poor, the temperature of conveying pipe is higher and the outside is not set with protective measures, there is greater security risk, and operating rod is not set with locking mechanism, is prone to sway even exist self-starting risk in long-term use process, for example, the problems of the above-mentioned comparative patent exist;

[0005] Therefore, we propose a kind of metal melt stop valve to solve the above problems. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of metal melt stop valve, to solve the problems in prior art proposed in the above background art, there is no warning sign, warning effect is poor, the temperature of conveying pipe is higher and the outside is not set with protective measures, there is greater security risk, and operating rod is not set with locking mechanism, is prone to sway even exist self-starting risk in long-term use process.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of metal melt stop valve, including valve body, fixedly connected in the conveying pipe of the left and right two ends of the valve body and rotationally installed in the operating rod of the upper end of the valve body;

[0008] Further include:

[0009] A heating cylinder is fixedly connected to the outer side of the valve body, and a heating device is installed in the interior of the heating cylinder, and a warning sign is arranged on the front side of the heating cylinder.

[0010] A protective cover is respectively sleeved on the upper and lower ends of the conveying pipe, and the protective cover is detachably arranged on the outer side of the conveying pipe.

[0011] A fixing cylinder is fixedly connected to the upper end of the valve body, and an operating rod is arranged in the middle of the fixing cylinder, and a self-starting prevention mechanism is arranged on the upper end of the fixing cylinder, and the self-starting prevention mechanism is used for locking the operating rod and the fixing cylinder.

[0012] Preferably, the self-starting prevention mechanism is composed of a movable plate, a fixed block, a fixed rod, a fixed sleeve, a connecting plate and a connecting rod.

[0013] Preferably, the protective cover is respectively arranged on the left and right ends of the valve body, and a fixed column is fixedly connected to one end of the protective cover close to the valve body.

[0014] Preferably, the fixed column is clamped and connected to the middle of the fixed plate, and the fixed plate is respectively fixedly connected to the upper and lower ends of the outer side of the valve body, and the front and rear ends of the fixed column are respectively provided with a fixed bolt.

[0015] Preferably, the fixed bolt and the fixed plate and the fixed bolt and the fixed column are screw-connected.

[0016] Preferably, the operating rod is rotationally connected in the fixing cylinder in a vertical state, and a plurality of fixed holes for limiting are arranged at equal angles on the outer surface of the upper end of the operating rod, and the outer side of the upper end of the fixing cylinder is sleeved with a movable plate, and the left and right ends of the movable plate are respectively slidably connected with a fixed block.

[0017] Meanwhile, the fixed blocks are respectively fixedly connected to the left and right sides of the upper end of the fixing cylinder.

[0018] Preferably, the front end of the movable plate is provided with a fixed rod, and the fixed rod is fixedly connected to the front side of the upper end of the fixing cylinder, and the outer surface of the fixed rod is screw-connected with a fixed sleeve for adjusting, and the rear end of the fixed sleeve is rotationally connected with a connecting plate.

[0019] Preferably, the connecting plate is fixedly connected to the front end of the movable plate.

[0020] Preferably, the rear end of the movable plate is fixedly connected with a connecting rod for limiting, and the upper end of the connecting rod is inserted into the corresponding fixed hole.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the molten metal shut-off valve can easily and continuously heat the metal inside the valve body through the heating device set inside the heating cylinder, preventing the molten metal from solidifying in the valve body. Moreover, the warning sign set on the outside of the heating cylinder can play a good warning role. Combined with the protective cover set on the outside of the conveying pipe, the conveying pipe is separated to prevent burns. Through the setting of the anti-self-starting mechanism, the operating lever can be locked to prevent the operating lever from shaking during long-term use and avoid the operating lever from self-starting.

[0022] 1. It is equipped with a heating cylinder and a heating device. The heating device inside the heating cylinder heats the metal solution inside the valve body to prevent the metal solution from solidifying in the valve body.

[0023] 2. It is equipped with a protective cover and a fixing post. The fixing post and the fixing plate are locked together, which makes it easy to fix the protective cover to the outside of the conveying pipe, so as to isolate the conveying pipe from the outside world and prevent self-starting.

[0024] 3. An anti-self-restarting mechanism is provided. The anti-self-restarting mechanism includes a movable plate, a fixed block, a fixed rod, a fixed sleeve, a connecting plate, and a connecting rod. The anti-self-restarting mechanism facilitates locking and limiting the operation rod and the fixed cylinder to prevent the operation rod from starting on its own. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0027] Figure 3 This is an exploded view of the conveying pipe and protective cover of this utility model;

[0028] Figure 4 This is a schematic diagram of the explosion structure of the protective cover, fixing column, fixing plate and fixing bolt of this utility model;

[0029] Figure 5 This is a frontal sectional view of the present invention.

[0030] Figure 6 This is an exploded structural diagram of the valve body, heating cylinder, and heating device of this utility model;

[0031] Figure 7 This utility model Figure 1 Enlarged structural diagram at point B;

[0032] Figure 8 This is a rear view structural diagram of the movable plate, connecting rod, and operating rod of this utility model;

[0033] Figure 9 The explosion structure schematic view of the self-opening prevention mechanism is shown.

[0034] In the figure: 1, valve body; 2, conveying pipe; 3, heating cylinder; 4, heating device; 5, protective cover; 6, fixed column; 7, fixed plate; 8, fixed bolt; 9, fixed cylinder; 10, operating rod; 11, self-opening prevention mechanism; 12, movable plate; 13, fixed block; 14, fixed rod; 15, fixed sleeve; 16, connecting plate; 17, connecting rod. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0036] Please refer to Figures 1-9 , the present application provides the following technical solutions.

[0037] Embodiment 1: In order to solve the problem of poor warning effect caused by not setting warning signs in the prior art, therefore, the technical scheme is as follows: a metal melt stop valve is provided with a valve body 1, a conveying pipe 2, a heating cylinder 3 and a heating device 4, the left and right ends of the valve body 1 are fixedly connected with the conveying pipe 2, the heating cylinder 3 is fixedly connected to the outside of the valve body 1, and the heating device 4 is installed in the inside of the heating cylinder 3, and the front side of the heating cylinder 3 is provided with a warning sign, as shown in Figure 1 , Figure 5 and Figure 6 , the heating device 4 in the inside of the heating cylinder 3 can heat the metal solution in the inside of the valve body 1, prevent the metal solution from solidifying in the valve body 1, and the outside of the heating cylinder 3 is provided with a warning sign, which can play a good warning effect.

[0038] Embodiment 2: In order to solve the problem that the temperature of the conveying pipe 2 is high and no protective measures are arranged on the outside in the prior art, there is a great safety hazard, therefore, the embodiment solves the problem through the following technical scheme, a molten metal stop valve is provided with a protective cover 5, a fixed column 6, a fixed plate 7 and a fixed bolt 8, the protective cover 5 is sleeved on the upper and lower ends of the conveying pipe 2 respectively, and the protective cover 5 forms a detachable structure on the outside of the conveying pipe 2, the protective cover 5 is arranged on the left and right ends of the valve body 1 respectively, and one end of the protective cover 5 close to the valve body 1 is fixedly connected with the fixed column 6, the fixed column 6 is clamped and connected in the middle of the fixed plate 7, and the fixed plate 7 is fixedly connected on the upper and lower ends of the outer side of the valve body 1 respectively, the front and rear ends of the fixed column 6 are provided with the fixed bolt 8, and the fixed bolt 8 and the fixed plate 7 and the fixed bolt 8 and the fixed column 6 are screw-connected, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the protective cover 5 is sleeved on the outside of the conveying pipe 2, at the same time, the protective cover 5 drives the clamped connection between the fixed column 6 and the fixed plate 7, then the fixed bolt 8 is rotated to limit the fixed plate 7 and the fixed column 6, and then the protective cover 5 is fixed on the outside of the conveying pipe 2, through the arrangement of the protective cover 5, the conveying pipe 2 can be separated, and scalding caused by contacting the conveying pipe 2 is prevented.

[0039] Embodiment 3: In order to solve the problem that the operating rod 10 does not arrange a locking mechanism, and is prone to shaking or even self-starting during long-term use in the prior art, therefore, the embodiment solves the problem through the following technical scheme, a molten metal stop valve is provided with a fixed cylinder 9, an operating rod 10 and a self-starting prevention mechanism 11, the fixed cylinder 9 is fixedly connected on the upper end of the valve body 1, the middle part of the fixed cylinder 9 is provided with the operating rod 10, the upper end of the fixed cylinder 9 is provided with the self-starting prevention mechanism 11, and the self-starting prevention mechanism 11 is used for locking the operating rod 10 and the fixed cylinder 9, the self-starting prevention mechanism 11 is composed of a movable plate 12, a fixed block 13, a fixed rod 14, a fixed sleeve 15, a connecting plate 16 and a connecting rod 17, the operating rod 10 is rotationally connected in the fixed cylinder 9 in a vertical state, and a plurality of fixed holes for limiting are arranged on the outer surface of the upper end of the operating rod 10 at equal angles, the movable plate 12 is sleeved on the outer side of the upper end of the fixed cylinder 9, and the left and right ends of the movable plate 12 are slidably connected with the fixed block 13, the fixed block 13 is fixedly connected on the left and right sides of the upper end of the fixed cylinder 9 respectively, the front end of the movable plate 12 is provided with the fixed rod 14, and the fixed rod 14 is fixedly connected on the front side of the upper end of the fixed cylinder 9, the outer surface of the fixed rod 14 is screw-connected with the fixed sleeve 15 for adjusting, the rear end of the fixed sleeve 15 is rotationally connected with the connecting plate 16, the connecting plate 16 is fixedly connected on the front end of the movable plate 12, the rear end of the movable plate 12 is fixedly connected with the connecting rod 17 for limiting, and the upper end of the connecting rod 17 is inserted into the fixed hole in the corresponding position, as shown in Figure 7 、 Figure 8 andFigure 8 When the operating lever 10 is rotated to the end, the fixed sleeve 15 threaded on the outer surface of the fixed rod 14 is rotated, and the fixed sleeve 15 is rotated with the connecting plate 16, the connecting plate 16 pushes the movable plate 12 to move outside the fixed cylinder 9, and then pushes the movable plate 12 to slide with the fixed block 13, the movable plate 12 drives the connecting rod 17 to be inserted into the fixed hole in the corresponding position, and then the operating lever 10 and the fixed cylinder 9 are locked, the operating lever 10 is prevented from shaking in the long-term use process, and the operating lever 10 is prevented from being self-started.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A molten metal shut-off valve, comprising a valve body (1), a delivery pipe (2) fixedly connected to the left and right ends of the valve body (1), and an operating rod (10) rotatably mounted on the upper end of the valve body (1); Its features are, Also includes: Heating cylinder (3), the heating cylinder (3) is fixedly connected to the outside of valve body (1), and a heating device (4) is installed inside the heating cylinder (3). A warning sign is provided on the front side of the heating cylinder (3). The protective cover (5) is respectively fitted on the upper and lower ends of the conveying pipe (2), and the protective cover (5) forms a detachable structure on the outside of the conveying pipe (2); A fixed cylinder (9) is fixedly connected to the upper end of the valve body (1), and an operating rod (10) is provided through the middle of the fixed cylinder (9). An anti-self-starting mechanism (11) is provided at the upper end of the fixed cylinder (9), and the anti-self-starting mechanism (11) is used to lock the operating rod (10) and the fixed cylinder (9). The anti-self-starting mechanism (11) consists of a movable plate (12), a fixed block (13), a fixed rod (14), a fixed sleeve (15), a connecting plate (16), and a connecting rod (17).

2. The molten metal shut-off valve according to claim 1, characterized in that: The protective cover (5) is respectively attached to the left and right ends of the valve body (1), and a fixing post (6) is fixedly connected to the end of the protective cover (5) near the valve body (1).

3. A molten metal shut-off valve according to claim 2, characterized in that: The fixing post (6) is engaged with the middle part of the fixing plate (7), and the fixing plate (7) is fixedly connected to the upper and lower ends of the outer side of the valve body (1). Fixing bolts (8) are provided at both the front and rear ends of the fixing post (6).

4. A molten metal shut-off valve according to claim 3, characterized in that: The fixing bolt (8) and the fixing plate (7) and the fixing bolt (8) and the fixing column (6) are all threaded connections.

5. A molten metal shut-off valve according to claim 1, characterized in that: The operating rod (10) is rotatably connected in the vertical fixed cylinder (9), and multiple sets of fixed holes for limiting are opened at equal angles on the outer surface of the upper end of the operating rod (10). A movable plate (12) is sleeved on the outer side of the upper end of the fixed cylinder (9), and fixed blocks (13) are slidably connected to both the left and right ends of the movable plate (12). Meanwhile, the fixing blocks (13) are fixedly connected to the left and right sides of the upper end of the fixing cylinder (9).

6. A molten metal shut-off valve according to claim 5, characterized in that: A fixing rod (14) is provided through the front end of the movable plate (12), and the fixing rod (14) is fixedly connected to the front side of the upper end of the fixing cylinder (9). A fixing sleeve (15) for adjustment is threadedly connected to the outer surface of the fixing rod (14), and a connecting plate (16) is rotatably connected to the rear end of the fixing sleeve (15).

7. A molten metal shut-off valve according to claim 6, characterized in that: The connecting plate (16) is fixedly connected to the front end of the movable plate (12).

8. A molten metal shut-off valve according to claim 6, characterized in that: The rear end of the movable plate (12) is fixedly connected to a connecting rod (17) for limiting position, and the upper end of the connecting rod (17) is inserted into a fixing hole at the corresponding position.

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