Novel gate valve

Abstract

The utility model discloses a novel gate valve which comprises a mounting frame, a driving box is connected to the mounting frame, a fixing box is connected to the driving box, a valve hole is formed in the mounting frame, a first rotating shaft is connected to the interior of the driving box, a driving mechanism is connected to the fixing box, a limiting mechanism is connected to the interior of the fixing box, and the limiting mechanism is connected to the interior of the fixing box. The mounting frame is connected with a switch mechanism, and the interior of the mounting frame is connected with a guide mechanism. According to the novel gate valve, an inserting rod is pulled, a handle is rotated to drive a second rotating shaft to rotate, then a third bevel gear drives a first rotating shaft to rotate, a second bevel gear is driven to rotate, a threaded rod is conveniently driven to rotate, displacement of a sliding block on the threaded rod can be adjusted, and then the valve is driven to slide on a valve hole; the flow of the valve hole is conveniently adjusted, and after the flow is adjusted, the second rotating shaft can be limited by loosening the insertion rod and through cooperation between the buffer spring and the baffle.

Description

Technical Field

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

[0002] The gate valve, also known as the manual knife gate valve, is a main control device for regulating or cutting off the flow of powder, granular, granular and small material conveying pipelines. The knife gate valve is a valve in which the gate and the valve seat are always in close contact and sealed. The principle is that there is a round opening of the gate with the same diameter. The gate is opened and closed to make the round opening on the gate completely separate and match the diameter. The sealing structure of the gate valve can be divided into soft sealing and hard sealing structures. It is widely used in metallurgy, mining, building materials, chemical industry and other industry systems to control the flow of materials or cut off.

[0003] The Chinese patent application with application number CN202021303613.X discloses a gate valve, which belongs to the field of valve technology, comprising: a shell; a valve plate, slidably arranged in the accommodating groove of the shell; a side surface of the valve plate is provided with a groove matching the opening of the shell; a first sealing ring is arranged in the groove; an inspection port is provided at one end of the upper shell body close to the lower shell body, and an inspection door is detachably provided on the inspection port; the maximum length of the inspection port perpendicular to the movement direction of the valve plate is greater than the maximum length of the first sealing ring perpendicular to the movement direction of the valve plate; the area of ​​the inspection port is smaller than the area enclosed by the first sealing ring; the gate valve of the utility model, by providing an inspection port and installing an inspection door, so that in the process of replacing the first sealing ring, you only need to remove the inspection door from the shell body, and gradually move the valve plate to replace the first sealing ring, which is convenient and quick with small workload.

[0004] However, the existing gate valve still has some defects. The valve plate is bent and deformed by the gravity of the material, which affects the opening and closing of the valve plate. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a new type of plug-in valve, which aims to solve the problem that after the valve is opened, the valve plate is located on one side of the valve body, the center of gravity of the entire device is offset, and one side of the valve may be squeezed against the inner wall of the valve body.

[0006] In order to achieve the above-mentioned utility model object, the technical solution adopted by the utility model is: a new type of plug valve, including a mounting frame, a driving box is connected to the mounting frame, a fixed box is connected to the driving box, a valve hole is provided on the mounting frame, a rotating shaft is connected to the interior of the driving box, a driving mechanism is connected to the fixed box, a limiting mechanism is connected to the interior of the fixed box, a switch mechanism is connected to the mounting frame, and a guide mechanism is connected to the interior of the mounting frame;

[0007] The switch mechanism includes a bevel gear 1 installed on a rotating shaft 1, a threaded rod is sleeved on the mounting frame, the top of the threaded rod is connected to a bevel gear 2, a slider is threadedly connected to the threaded rod, a movable rod is hinged on the slider, a valve is hinged at one end of the movable rod, and a sealing gasket is connected to one side of the valve.

[0008] Furthermore, the driving mechanism includes a rotating shaft 2 installed on a fixed box, the top of the rotating shaft 2 is connected to a handle, the bottom of the rotating shaft 2 is connected to a bevel gear 3, the rotating shaft 1 is connected to a bevel gear 4, and the bevel gear 3 is meshed with the bevel gear 4.

[0009] Furthermore, the limiting mechanism includes a limiting wheel installed on the second rotating shaft, the limiting wheel is provided with a positioning hole, the interior of the fixed box is connected to the limiting box, the limiting box is sleeved with an insertion rod, the insertion rod is connected to a baffle, a buffer spring is connected between the baffle and the limiting box, and the insertion rod is meshed with the positioning hole.

[0010] Furthermore, the guide mechanism comprises a guide block installed inside the mounting frame, a guide rail is provided on the guide block, and pulleys are connected to both ends of the valve, and the pulleys slide on the guide rails.

[0011] Furthermore, the sealing gasket is made of rubber.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a new type of plug valve, pulling the plug rod and turning the handle to drive the rotating shaft two to rotate, and then driving the rotating shaft one to rotate through the bevel gear three, and then driving the bevel gear two to rotate, which is convenient for driving the threaded rod to rotate, and the displacement of the slider on the threaded rod can be adjusted, thereby driving the valve to slide on the valve hole, which is convenient for adjusting the flow of the valve hole. After adjusting the flow, the plug rod is loosened, and the rotating shaft two can be limited by the cooperation between the buffer spring and the baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of a new type of gate valve of the utility model;

[0015] Figure 2 It is a cross-sectional view of a new type of gate valve of the utility model;

[0016] Figure 3 A new type of plug valve of the utility model Figure 2 Enlarged view of point B in the middle.

[0017] Reference table of reference numerals:

[0018] 1. Mounting frame; 2. Drive box; 3. Fixed box; 4. Valve hole; 5. Rotating shaft one; 6. Driving mechanism; 601. Rotating shaft two; 602. Handle; 603. Bevel gear three; 604. Bevel gear four; 7. Limiting mechanism; 701. Limiting wheel; 702. Positioning hole; 703. Limiting box; 704. Insert rod; 705. Baffle; 706. Buffer spring; 8. Switching mechanism; 801. Bevel gear one; 802. Threaded rod; 803. Bevel gear two; 804. Sliding block; 805. Movable rod; 806. Valve; 807. Sealing pad; 9. Guide mechanism; 901. Guide block; 902. Guide rail; 903. Pulley. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0020] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0021] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figures 1 to 3 As shown, a new type of gate valve comprises a mounting frame 1, a driving box 2 is connected to the mounting frame 1, a fixing box 3 is connected to the driving box 2, a valve hole 4 is provided on the mounting frame 1, a rotating shaft 5 is connected inside the driving box 2, a driving mechanism 6 is connected to the fixing box 3, a limiting mechanism 7 is connected inside the fixing box 3, a switch mechanism 8 is connected to the mounting frame 1, and a guide mechanism 9 is connected inside the mounting frame 1;

[0023] The switch mechanism 8 includes a bevel gear 1 801 installed on a rotating shaft 1 5, a threaded rod 802 is sleeved on the mounting frame 1, the top of the threaded rod 802 is connected to a bevel gear 2 803, a slider 804 is threadedly connected to the threaded rod 802, a movable rod 805 is hinged on the slider 804, a valve 806 is hinged at one end of the movable rod 805, and a sealing gasket 807 is connected to one side of the valve 806.

[0024] Specifically, the threaded rod 802 is driven to rotate by the bevel gear 1 801 on the rotating shaft 1 5 , so that the displacement of the slider 804 on the threaded rod 802 can be adjusted, thereby driving the valve 806 to slide on the valve hole 4 , so as to facilitate the adjustment of the flow of the valve hole 4 .

[0025] The driving mechanism 6 includes a second rotating shaft 601 installed on the fixed box 3, the top of the second rotating shaft 601 is connected to a handle 602, the bottom of the second rotating shaft 601 is connected to a bevel gear three 603, and the rotating shaft one 5 is connected to a bevel gear four 604, and the bevel gear three 603 and the bevel gear four 604 are meshed with each other.

[0026] Specifically, the insertion rod 704 is pulled, and the handle 602 is rotated to drive the second shaft 601 to rotate, and then the rotating shaft 1 5 is driven to rotate through the bevel gear 3 603.

[0027] The limiting mechanism 7 includes a limiting wheel 701 installed on the rotating shaft 601, and a positioning hole 702 is provided on the limiting wheel 701. The interior of the fixed box 3 is connected to the limiting box 703, and an insertion rod 704 is sleeved on the limiting box 703. The insertion rod 704 is connected to a baffle 705. A buffer spring 706 is connected between the baffle 705 and the limiting box 703, and the insertion rod 704 is meshed with the positioning hole 702.

[0028] Specifically, after adjusting the flow rate, by loosening the plug rod 704, the second rotating shaft 601 can be limited through the cooperation between the buffer spring 706 and the baffle 705.

[0029] The guide mechanism 9 includes a guide block 901 installed inside the mounting frame 1 . A guide rail 902 is provided on the guide block 901 . Pulleys 903 are connected to both ends of the valve 806 . The pulleys 903 slide on the guide rails 902 .

[0030] Specifically, the valve 806 slides on the guide rail 902, which can increase the stability of the valve 806 when it is displaced.

[0031] The sealing gasket 807 is made of rubber.

[0032] The working principle of the present invention is that, in actual use, the plug rod 704 is pulled, and the handle 602 is turned to drive the rotating shaft 2 601 to rotate, and then the rotating shaft 1 5 is driven to rotate through the bevel gear 3 603, and then the bevel gear 2 803 is driven to rotate, which is convenient for driving the threaded rod 802 to rotate, and the displacement of the slider 804 on the threaded rod 802 can be adjusted, and then the valve 806 is driven to slide on the valve hole 4, which is convenient for adjusting the flow of the valve hole 4. After adjusting the flow, the plug rod 704 is loosened, and the rotating shaft 2 601 can be limited by the cooperation between the buffer spring 706 and the baffle 705.

[0033] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. A new type of gate valve, characterized in that: The invention comprises a mounting frame (1), the mounting frame (1) is connected to a driving box (2), the driving box (2) is connected to a fixing box (3), the mounting frame (1) is provided with a valve hole (4), the driving box (2) is internally connected to a rotating shaft (5), the fixing box (3) is connected to a driving mechanism (6), the fixing box (3) is internally connected to a limiting mechanism (7), the mounting frame (1) is connected to a switch mechanism (8), and the mounting frame (1) is internally connected to a guiding mechanism (9); The switch mechanism (8) comprises a bevel gear one (801) mounted on a rotating shaft one (5); a threaded rod (802) is sleeved on the mounting frame (1); the top end of the threaded rod (802) is connected to a bevel gear two (803); a slider (804) is threadedly connected to the threaded rod (802); a movable rod (805) is hingedly connected to the slider (804); a valve (806) is hingedly connected to one end of the movable rod (805); and a sealing gasket (807) is connected to one side of the valve (806).

2. A new type of gate valve according to claim 1, characterized in that: The driving mechanism (6) comprises a second rotating shaft (601) mounted on a fixed box (3) and connected thereto, the top end of the second rotating shaft (601) being connected to a handle (602), the bottom end of the second rotating shaft (601) being connected to a third bevel gear (603), the first rotating shaft (5) being connected to a fourth bevel gear (604), the third bevel gear (603) being meshed with the fourth bevel gear (604).

3. A new type of gate valve according to claim 2, characterized in that: The limiting mechanism (7) comprises a limiting wheel (701) mounted on the second rotating shaft (601), a positioning hole (702) being provided on the limiting wheel (701), a limiting box (703) being connected to the interior of the fixed box (3), an insert rod (704) being sleeved on the limiting box (703), a baffle (705) being connected to the insert rod (704), a buffer spring (706) being connected between the baffle (705) and the limiting box (703), and the insert rod (704) being meshed with the positioning hole (702).

4. A new type of gate valve according to claim 1, characterized in that: The guide mechanism (9) comprises a guide block (901) installed inside the mounting frame (1), a guide rail (902) being provided on the guide block (901), pulleys (903) being connected to both ends of the valve (806), and the pulleys (903) sliding on the guide rails (902).

5. A new type of gate valve according to claim 1, characterized in that: The sealing pad (807) is made of rubber.

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