Valve for exhaust passage

Abstract

The present application relates to a valve, which solves the problem of complex structure. The valve comprises a body and a valve plate, the body is provided with an exhaust port, the valve plate is arranged on the body for opening or closing the exhaust port, characterized in that the body is provided with a mounting channel, the valve further comprises an operating rod and a clamping block, one end of the operating rod is arranged outside the body, the other end of the operating rod penetrates through the mounting channel and drives the clamping block to move, the clamping block has an initial position for making the valve in an active state and a clamping position for making the valve in a fixed state, when the clamping block moves from the initial position to the clamping position, at least part of the projection of the clamping block in the vertical direction is located outside the body.

Description

TECHNICAL FIELD

[0001] The present application relates to a valve for exhaust duct. BACKGROUND

[0002] The valve comprises a valve body, a valve core and a valve plate, the valve core is installed on the valve body, the valve plate is installed on the valve core, the valve core has an exhaust port, the valve plate moves relative to the valve core to open or close the exhaust port, when the valve plate does not close the exhaust port, the smoke in the user's residence is discharged into the exhaust duct through the exhaust port. However, the existing valve structure is complex. SUMMARY

[0003] The problem to be solved by the present application is to provide a valve for exhaust duct.

[0004] To solve the above problems, the present application provides the following technical scheme:

[0005] The valve comprises a body and a valve plate, the body is provided with an exhaust port, the valve plate is arranged on the body to open or close the exhaust port, characterized in that the body is provided with a mounting channel, the valve further comprises an operating rod and a clamping block, one end of the operating rod is arranged outside the body, the other end of the operating rod penetrates the mounting channel and drives the clamping block to move, the clamping block has an initial position for making the valve in an active state and a clamping position for making the valve in a fixed state, when the clamping block moves from the initial position to the clamping position, at least part of the projection of the clamping block in the vertical direction is located outside the body.

[0006] Further, the valve further comprises a connecting mechanism arranged on the inner side of the body, the operating rod is connected with the connecting mechanism after penetrating the mounting channel, and the clamping block is movably arranged on the connecting mechanism.

[0007] Further, the clamping block is provided with a blocking portion, when the clamping block moves from the initial position to the clamping position relative to the connecting mechanism, the blocking portion abuts against the connecting mechanism.

[0008] Further, the clamping block is rotatably connected with the connecting mechanism, and the clamping block is located below the connection between the clamping block and the connecting mechanism and is provided with a blocking surface abutting against the connecting mechanism, the blocking surface is the blocking portion.

[0009] Further, the connecting mechanism comprises a connecting plate, one end of the connecting plate is provided with a first flange bent to the left, the operating rod is connected with the first flange, the other end of the connecting plate is provided with a second flange bent to the right, and the clamping block is movably arranged on the second flange.

[0010] Further, the valve further comprises a limiting device, and the limiting device is provided with a limiting channel for limiting the circumferential movement range of the connecting mechanism.

[0011] Further, the operating rod is a screw, which is in threaded connection with the body and the connecting mechanism.

[0012] Further, the valve further comprises an annular accommodating cavity, which is arranged at the position of the body between the exhaust port and the clamping block.

[0013] Further, the valve further comprises a sealing ring, which is arranged at least partially in the accommodating cavity and has an installation gap with the clamping block.

[0014] Further, the body comprises a valve body and a valve core with the exhaust port, the valve body comprises a decorative panel and a protective plate arranged at the lateral side of the decorative panel, at least part of the installation channel is arranged on the decorative panel, the protective plate is provided with a step, the step comprises an upper step surface connected with the decorative panel, a lower step surface and a connecting surface for connecting the upper step surface and the lower step surface, and the connecting surface and the lower step surface enclose the accommodating cavity.

[0015] Further, the valve further comprises a temperature sensing device and an automatic locking mechanism, the automatic locking mechanism is movably arranged on the body and abuts against the valve sheet, the body defines the position of the valve sheet relative to the body through the temperature sensing device, and after the temperature sensing device works, the automatic locking mechanism pushes the valve sheet to close the exhaust port.

[0016] Advantages of the present application:

[0017] In the present application, the clamping block has an initial position for making the valve in an active state and a clamping position for making the valve in a fixed state, and when the clamping block moves from the initial position to the clamping position, at least part of the projection of the clamping block in the vertical direction is located outside the body. In this way, the contact area of the clamping block and the exhaust passage is increased to improve the connection strength between the valve and the exhaust passage. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the first perspective view of the valve in the preferred embodiment of the present application (when the exhaust port is opened);

[0019] Figure 2 is the second perspective view of the valve in the preferred embodiment of the present application (when the exhaust port is opened);

[0020] Figure 3 is the top view of the operating rod, the connecting plate and the clamping block in the preferred embodiment of the present application;

[0021] Figure 4 is the perspective view of the valve body and the automatic locking mechanism in the preferred embodiment of the present application;

[0022] Figure 5is a perspective view of the automatic locking mechanism in the preferred embodiment of the present application;

[0023] Figure 6 is a perspective view of the support device in the preferred embodiment of the present application;

[0024] Figure 7 is a third perspective view of the valve (with the exhaust port open) in the preferred embodiment of the present application;

[0025] Figure 8 is Figure 7 is a partial enlarged view of A in FIG. 6;

[0026] Figure 9 is a fourth perspective view of the valve (with the exhaust port closed) in the preferred embodiment of the present application;

[0027] Figure 10 is a top view of the valve core in the preferred embodiment of the present application;

[0028] Figure 11 is a perspective view of the valve body in the preferred embodiment of the present application;

[0029] Figure 12 is a top view of the valve in the preferred embodiment of the present application;

[0030] Figure 13 is a front view of the clamping block in the preferred embodiment of the present application. DETAILED DESCRIPTION

[0031] The technical solutions of the embodiments of the present application are explained and described below in combination with the drawings of the embodiments of the present application. However, the following embodiments are only preferred embodiments of the present application, and not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0032] Referring to Figure 1 and Figure 2 , the valve comprises a body 1 having an exhaust port 1211 and a valve piece 2 arranged on the body 1 for opening or closing the exhaust port 1211.

[0033] Referring to Figure 2 , Figure 4 and Figure 10The body 1 of the embodiment comprises a valve body 11 and a valve core 12 with an exhaust port 1211, the valve core 12 is detachably mounted on the valve body 11, specifically: the valve body 11 is provided with a stepped hole 111, the stepped hole 111 comprises an upper stepped surface, a lower stepped surface and a connecting surface for connecting the upper stepped surface and the lower stepped surface, the outer wall of the valve core 12 is provided with an annular rib 122, when the valve core 12 is inserted into the stepped hole 111 and the annular rib 122 abuts against the connecting surface on the stepped hole 111, the upper stepped surface and the annular rib 122 are integrally connected by welding. In this way, the valve core 12 and the valve body 11 are integrally connected by welding to enhance the connection strength between the valve core 12 and the valve body 11. In other embodiments of the application, the valve core and the valve body are threadedly connected, or the valve core and the valve body are interference fit, or the valve core and the valve body are connected by a sealing ring.

[0034] With reference to Figure 2 The valve core 12 of the embodiment is provided with a smoke exhaust passage 121, and the exhaust port 1211 is arranged at the open end of the smoke exhaust passage 121. In other embodiments, the exhaust port can be arranged on the smoke exhaust passage of the body.

[0035] With reference to Figure 2 、 Figure 11 and Figure 12 Unlike the prior art, the body 1 of the embodiment is provided with a mounting passage 113, the valve further comprises an operating rod 6 and a clamping block 7, one end of the operating rod 6 is arranged outside the body 1, the other end of the operating rod 6 penetrates the mounting passage 113 and drives the clamping block 7 to move, the clamping block 7 has an initial position for making the valve active and a clamping position for making the valve fixed, when the clamping block 7 moves from the initial position to the clamping position, at least part of the projection of the clamping block 7 in the vertical direction is located outside the body 1.

[0036] With reference to Figure 3 The valve of the embodiment further comprises a connecting mechanism arranged inside the body 1, the operating rod 6 is connected with the connecting mechanism after penetrating the mounting passage 113, and the clamping block 7 is movably arranged on the connecting mechanism, specifically: the connecting mechanism comprises a connecting plate 8, one end of the connecting plate 8 is provided with a first flange 82 bent to the left, the operating rod 6 is connected with the first flange 82, the other end of the connecting plate 8 is provided with a second flange 83 bent to the right, and the clamping block 7 is movably arranged on the second flange 83. In this way, the connecting mechanism is simplified. In other embodiments of the application, the connecting mechanism comprises a first plate body, a second plate body and a third plate body, the first plate body and the second plate body are integrally connected by welding, the operating rod is connected with the first plate body, the third plate body is connected with the second plate body by a rivet, and the clamping block is movably arranged on the third plate body.

[0037] Of course, in other embodiments of the application, the clamping block can be movably arranged on the operating rod.

[0038] With reference toFigure 3 and Figure 13 The clamping block 7 is provided with a blocking portion, when the clamping block 7 moves relative to the connecting mechanism from the initial position to the clamping position, the blocking portion abuts against the connecting mechanism, specifically: the clamping block 7 is rotationally connected with the connecting mechanism, and the clamping block 7 is provided, below the connection position, with a blocking surface 71 which can abut against the connecting mechanism, the blocking surface 71 is the blocking portion; the clamping block 7 is provided, below the connection position, with a circular arc 72 for avoiding the connecting mechanism. In this way, the structure of the valve is further simplified, and when the blocking portion is arranged on the clamping block 7, the blocking portion will not interfere with the wall of the exhaust passage. In other embodiments of the present application, the blocking portion for preventing the clamping block from rotating is arranged on the body.

[0039] Referring to Figure 3 , Figure 6 and Figure 7 , the valve further comprises a limiting device, the limiting device is provided with a limiting channel for limiting the circumferential movement range of the connecting mechanism, the limiting channel comprises a first limiting hole 91 arranged on the limiting plate 9 and a second limiting hole 52 arranged on the oil receiving plate 5, in this embodiment, the valve has two groups of connecting mechanisms, the connecting plate 8 of one group of connecting mechanisms penetrates through the first limiting hole 91, and the connecting plate 8 of the other group of connecting mechanisms penetrates through the second limiting hole 52.

[0040] Referring to Figure 2 , Figure 3 and Figure 11 , the operating rod 6 of this embodiment is a screw, the screw is threadedly connected with the body 1 and the connecting mechanism, specifically: the body comprises a through hole arranged on the valve body 11 and a nut, the nut is welded on the valve body 11 to realize the communication between the through hole and the threaded hole on the nut, in other words, the mounting channel 113 comprises the through hole and the threaded hole on the nut, and the screw is fixedly connected with the threaded hole on the connecting mechanism after penetrating through the through hole and the threaded hole in sequence. In this way, the movement of the connecting mechanism relative to the body 1 is prevented. In other embodiments of the present application, the valve body is provided with a threaded hole, and the screw is fixedly connected with the threaded hole on the connecting mechanism after penetrating through the threaded hole on the valve body.

[0041] Referring to Figure 2 and Figure 11 , the valve of this embodiment further comprises an annular receiving cavity 112 and a sealing ring 100 arranged at least partially in the receiving cavity 112, the receiving cavity 112 is arranged on the body 1 at a position between the exhaust port 1211 and the clamping block 7, and the sealing ring 100 is provided with a mounting gap for clamping the exhaust passage between the sealing ring 100 and the clamping block 7.

[0042] Referring to Figure 11The valve body 11 of the embodiment comprises a decorative panel 1101 and a protective plate 1102 arranged around the decorative panel 1101, at least part of the mounting channel 113 is arranged on the decorative panel 1101, the protective plate 1102 is provided with a step 112, the step 112 comprises an upper step surface connected with the decorative panel 1101, a lower step surface and a connecting surface 1121 for connecting the upper step surface and the lower step surface, the connecting surface 1121 and the lower step surface enclose a receiving cavity.

[0043] With reference to Figure 1 , Figure 4 and Figure 5 , the valve further comprises a temperature sensing device 4 and an automatic locking mechanism 3, the automatic locking mechanism 3 is movably arranged on the body 1 and abuts against the valve plate 2, the body 1 limits the position of the valve plate 2 relative to the body 1 through the temperature sensing device 4, after the temperature sensing device 4 works, the automatic locking mechanism 3 pushes the valve plate 2 to close the exhaust port 1211.

[0044] With reference to Figure 4 and Figure 5 , the automatic locking mechanism 3 of the embodiment is rotationally connected with the body 1, specifically: the automatic locking mechanism 3 comprises a locking latch 31, a rotating shaft 32 and an elastic element 33, the locking latch 31 is rotationally connected with the body 1 through the rotating shaft 32, the elastic element 33 is used for connecting the locking latch 31 and the body 1, after the temperature sensing device 4 works, the elastic element 33 drives the locking latch 31 to rotate around the axis of the rotating shaft 32, so that the locking latch 31 pushes the valve plate 2 to close the exhaust port 1211. Before the temperature sensing device 4 works, the flue gas can move to the exhaust passage through the exhaust port 1211 without obstruction, so as to avoid affecting the emission of the oil fume in the user's residence communicated with the valve; in addition, since the existing automatic locking mechanism 3 is connected with the valve plate 2, when the automatic locking mechanism 3 abuts against the valve plate 2, the structure of the valve can be further simplified. In other embodiments of the application, the automatic locking mechanism comprises a locking latch and a rotating shaft, the locking latch is rotationally connected with the body through the rotating shaft, the center of gravity of the locking latch is located on the inner side of the rotating shaft, after the temperature sensing device works, the locking latch rotates around the axis of the rotating shaft under the action of its own gravity and pushes the valve plate to close the exhaust port.

[0045] Of course, in other embodiments of the application, the automatic locking mechanism and the body can also be fixedly connected, after the temperature sensing device works, a part of the automatic locking mechanism moves linearly and pushes the valve plate to close the exhaust port.

[0046] In the embodiment, the automatic locking mechanism 3 is movably arranged on the valve body 11. In this way, the hole for fixing the automatic locking mechanism 3 on the valve core 12 is avoided. However, the application does not exclude that the automatic locking mechanism is arranged on the mounting plate which is formed by the outer wall of the valve core extending outwardly.

[0047] With reference to Figure 7 and Figure 8The temperature sensing element 4 of the embodiment comprises a first copper sheet 41, a second copper sheet 43 and a fusible filler 42. The first copper sheet 41 and the second copper sheet 43 are connected by the fusible filler 42 (the fusible filler 42 comprises solder such as secret base, indium base, tin base, cadmium base, zinc base and lead base). The first copper sheet 41 is fixedly connected to the body 1. The second copper sheet 43 abuts against the valve sheet 2. When the fusible filler 42 is melted at high temperature, the first copper sheet 41 and the second copper sheet 43 are separated. When the valve sheet 2 is not connected to the body 1 by the temperature sensing element 4, the elastic element 33 drives the latch 31 to rotate around the axis of the rotating shaft 32, so that the latch 31 pushes the valve sheet 2 to close the exhaust port 1211. In other embodiments of the application, the temperature sensing element is a memory metal. When the memory metal receives a deformation temperature, the memory metal is arranged on the body. After the memory metal is deformed and separated from the valve sheet, the elastic element drives the latch to rotate around the axis of the rotating shaft, so that the latch pushes the valve sheet to close the exhaust port. When the memory metal receives a temperature lower than the deformation temperature, the memory metal will restore its original shape.

[0048] It should be noted that in the embodiment, the "action of the temperature sensing element 5" refers to the action that the fusible filler 42 is heated to cause the second copper sheet 43 to separate from the first copper sheet 41.

[0049] The above is only a specific embodiment of the application, but the protection scope of the application is not limited thereto. Those skilled in the art should understand that the application includes but is not limited to the contents described in the above specific embodiments and the accompanying drawings. Any modification that does not deviate from the functional and structural principles of the application shall be included in the scope of the claims.

Claims

1. A valve, comprising a body and a valve plate, wherein the body is provided with an exhaust port, and the valve plate is disposed on the body for opening or closing the exhaust port, characterized in that, The main body is provided with an installation channel. The valve also includes an operating rod and a clamping block. One end of the operating rod is disposed outside the main body, and the other end of the operating rod passes through the installation channel and drives the clamping block to move. The clamping block has an initial position that puts the valve in an active state and a clamping position that puts the valve in a fixed state. When the clamping block moves from the initial position to the clamping position, at least a portion of the vertical projection of the clamping block is located outside the main body. The valve also includes a limiting device, an oil receiving plate on the body, and two sets of connecting mechanisms on the inside of the body. The operating rod passes through the mounting channel and is connected to the connecting mechanism. The clamping block is movably mounted on the connecting mechanism. The connecting mechanism includes a connecting plate, one end of which has a first flange bent to the left, the operating rod being connected to the first flange, and the other end of which has a second flange bent to the right, the clamping block being movably mounted on the second flange; The limiting device is provided with a limiting channel for limiting the circumferential movement range of the connecting mechanism. The limiting channel includes a first limiting hole provided on the limiting plate and a second limiting hole provided on the oil receiving plate. The connecting plate of one set of connecting mechanisms passes through the first limiting hole, and the connecting plate of the other set of connecting mechanisms passes through the second limiting hole. The valve also includes a temperature sensing device and an automatic locking mechanism. The automatic locking mechanism is movably mounted on the body and abuts against the valve plate. The body limits the position of the valve plate relative to the body through the temperature sensing device. After the temperature sensing device is activated, the automatic locking mechanism pushes the valve plate to close the exhaust port. The main body includes a valve body and a valve core with an exhaust port, and an automatic locking mechanism is movably mounted on the valve body; before the temperature sensing device is working, the flue gas can move unimpeded through the exhaust port into the exhaust duct.

2. The valve as claimed in claim 1, characterized in that, The clamping block is provided with a blocking part. When the clamping block moves from the initial position to the clamping position relative to the connecting mechanism, the blocking part abuts against the connecting mechanism.

3. The valve as described in claim 2, characterized in that, The clamping block is rotatably connected to the connecting mechanism. The clamping block is provided with a blocking surface below the connection point between the two, which can abut against the connecting mechanism. The blocking surface is the blocking part.

4. The valve as claimed in claim 1, characterized in that, The operating lever is a screw, which is threadedly connected to the body and the connecting mechanism.

5. The valve as described in any one of claims 1 to 4, characterized in that, The valve also includes an annular receiving cavity, which is disposed on the body at a position between the exhaust port and the clamping block.

6. The valve as claimed in claim 5, characterized in that, The valve also includes a sealing ring that is at least partially disposed within the receiving cavity, and an installation gap is provided between the sealing ring and the clamping block.

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