Push-pull rod type quick emptying valve

Abstract

The utility model discloses a push-pull rod type quick emptying valve, which comprises a valve body, a valve core, a connecting rod, a hinged support, a push-pull rod, a sealing device, a suspender and the like, the valve core is arranged in the valve body, the upper end of the connecting rod is connected with the valve core, the lower end of the connecting rod is provided with a chain seat, the chain seat is provided with the push-pull rod, and the lower end of the valve body is provided with the suspender and the sealing device. The valve body is installed at the bottom of a discharging tank, a circular plate with an inner taper hole is arranged in the feeding end of the valve body, a flange is arranged at a discharging port of the valve body, and the push-pull rod moves up and down to drive the connecting rod and the valve element to move up and down, so that quick opening and closing of the discharging valve are achieved. The pin shaft can properly slide in the pin hole due to the rectangular pin hole in the push-pull rod, so that the connecting rod and the valve core can vertically move up and down, the valve core and the inner conical hole surface of the circular plate at the upper end of the valve body are sealed, and the quick discharging valve is particularly suitable for discharging crystal mush with large-particle crystals.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment, and particularly relates to a push-pull rod type quick discharging valve. Background Technique

[0002] The main function of the discharging valve is to accurately control the discharging speed, flow rate and start and stop of discharging of materials, ensure the smooth progress of the production process, and prevent material leakage. It is usually applied to equipment such as reaction kettles, crystallization tanks, storage tanks in industrial fields such as chemical industry, pharmaceutical industry, food processing, etc.

[0003] At present, there are various types of material picking and placing devices, but they tend to be polarized. One type is relatively high-end products. Such products are generally targeted and designed for only one or certain types of equipment. For example, the material picking and placing device of an automatic pick-and-place machine. Such products are large in volume, complex in internal structure, and the material sucking and material rotating directions are driven by stepping motors or servo motors with high precision. The manufacturing cost is very high and it is not practical for some miniaturized and low-value automatic equipment. The second type belongs to low-end products. Although the structure is simple and the cost is low, generally pneumatic is used to realize the up and down movement and the motor is used to realize the rotational movement. Since pneumatic cannot achieve acceleration and deceleration during the movement process, it causes large inertia and a high error rate, and it is not practical for some occasions without high-pressure air sources. In addition, the overall speed is slow and the efficiency is low. Therefore, there is a need in the market for a discharging device with a small volume, wide adaptability to occasions, and low cost, which can solve the price problem of high-end products and the technical problems of low-end products. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a push-pull rod type quick discharging valve, which solves the technical problems that the existing material picking and placing devices tend to be polarized. High-end products such as the material picking and placing device of an automatic pick-and-place machine are targeted, large in volume, complex in structure, driven by high-precision motors, high in cost, and not applicable to miniaturized and low-value equipment; low-end products have a simple structure and low cost, use pneumatic to realize the up and down movement and the motor to realize the rotational movement, and due to the inability of pneumatic to accelerate and decelerate, it causes large inertia and a high error rate, relies on high-pressure air sources, and is slow in speed and low in efficiency.

[0006] (II) Technical Solutions

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] A push-pull rod type quick discharging valve is composed of components such as a valve body, a valve core, a connecting rod, a hinge seat, a push-pull rod, a sealing device and a suspension rod, etc.; the valve core is arranged inside the valve body, the upper end of the connecting rod is connected with the valve core, a chain seat is installed on the connecting rod, the chain seat is installed with a push-pull rod, the lower end of the valve body is installed with a suspension rod, a sealing device is installed on the valve body, the feeding end and the discharging end of the valve body are at 45 degrees, a round plate with an inner conical hole is arranged in the feeding end of the valve body, a flange is arranged at the discharging port of the valve body, the valve core is an inverted cone platform wrapped with polytetrafluoroethylene, and forms a pair of sealing surfaces with the round plate with an inner conical hole in the feeding end of the valve body.

[0009] Preferably: the lower end of the connecting rod has an internal thread, its upper end is connected with the valve core, and the lower end is connected with the chain seat.

[0010] Preferably: the chain seat is an inverted U-shaped hinge seat, its upper end is a screw rod with an external thread, and both sides of the lower end are provided with pin holes.

[0011] Preferably: one end of the push-pull rod is a convex platform with a round hole, rectangular pin holes and circular pin holes are arranged on the push-pull rod, the circular pin hole is located on the right side of the rectangular pin hole, and the circular pin hole on the push-pull rod and the chain seat are connected by a pin shaft.

[0012] Preferably: the suspension rod is an L-shaped suspension rod, the upper end is welded to the valve body, and the lower end is provided with a cylindrical pin shaft, and the cylindrical pin shaft passes through the rectangular pin hole on the push-pull rod to realize the connection with the push-pull rod.

[0013] Preferably: the sealing device is composed of a base, packing, gland and compression bolts.

[0014] (III) Beneficial effects

[0015] This quick discharging valve has a simple structure, realizes the quick opening and closing of the discharging valve, improves the speed and efficiency of taking and discharging materials, helps to improve the rhythm of the entire production process and increase production capacity; improves the accuracy and stability of taking and discharging materials, reduces the error rate of equipment operation, enhances the environmental adaptability of the equipment, and enables it to be applied in a wider range of occasions. Description of the drawings

[0016] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the description, the following takes the preferred embodiment of the present invention and cooperates with the drawings to describe in detail as follows.

[0017] Figure 1 It is the plane structure diagram of the present invention;

[0018] Figure 2 It is the structure diagram of the suspension rod of the present invention;

[0019] Figure 3 Structural diagram of the connecting rod of the present utility model;

[0020] Figure 4 Structural diagram of the push-pull rod of the present utility model.

[0021] Legend: 1. Spool; 2. Valve body; 3. Connecting rod; 4. Suspension rod; 5. Sealing device; 6. Push-pull rod; 7. Chain seat; 8. Rectangular pin hole; 9. Circular pin hole. Specific implementation mode

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0023] As Figures 1 - 4 shown, a quick discharging valve of the push-pull rod type described in an embodiment of the present utility model is composed of a valve body 2, a spool 1, a connecting rod 3, a chain seat 7, a push-pull rod 6, a sealing device 5 and a suspension rod 4. The spool 1 is arranged inside the valve body 2. The upper end of the connecting rod 3 is connected to the spool 1. A chain seat 7 is installed on the connecting rod 3. The chain seat 7 is installed with a push-pull rod 6. The lower end of the valve body 2 is installed with a suspension rod 4. A sealing device 5 is installed on the valve body 2. The sealing device 5 is composed of a base, packing, gland and compression bolts. The feeding end and the discharging end of the valve body 2 are at an angle of 45 degrees. A round plate with an inner conical hole is arranged in the feeding end of the valve body 2. A flange is arranged at the discharging port of the valve body 2. The spool 1 is an inverted truncated cone wrapped with polytetrafluoroethylene, and forms a pair of sealing surfaces with the round plate with an inner conical hole in the feeding end of the valve body 2. The lower end of the connecting rod 3 has an internal thread, its upper end is connected to the spool 1, and the lower end is connected to the chain seat 7. The chain seat 7 is an inverted U-shaped hinge seat, its upper end is a screw rod with an external thread, and both sides of the lower end are provided with pin holes. One end of the push-pull rod 6 is a boss with a round hole. Rectangular pin holes 8 and circular pin holes 9 are formed on the push-pull rod 6. The circular pin hole 9 on the push-pull rod 6 is connected to the chain seat 7 through a pin shaft. The suspension rod 4 is an L-shaped suspension rod, the upper end is welded to the valve body 2, and the lower end is provided with a cylindrical pin shaft. The cylindrical pin shaft passes through the rectangular pin hole 8 on the push-pull rod 6 to realize the connection with the push-pull rod 6. The rectangular pin hole on the push-pull rod 6 allows the pin shaft to slide appropriately in the pin hole, so as to ensure the vertical up and down movement of the connecting rod and the spool.

[0024] Operation steps:

[0025] First step, when feeding, pull the push rod 6 downward. Since the circular pin hole 9 on the push rod 6 is hinged to the chain seat 7, and the chain seat 7 is connected to the connecting rod 3, the connecting rod 3 will be driven to move upward. The connecting rod 3 pushes the valve core 1 upward, and the material passage is opened accordingly. The material enters the valve body 2 and enters the external feeding pipeline from the outlet;

[0026] Second step, when closing, push the push rod 6 upward. Similarly, when pulling the push rod 6, the connecting rod 3 will be driven to move downward. The connecting rod 3 drives the valve core 1 to move downward, and the material passage is closed.

[0027] Through the above operations, the rapid opening and closing of the feeding valve can be realized.

[0028] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A push-pull rod type quick discharging valve, comprising a valve core (1), a valve body (2) and a connecting rod (3), wherein the valve core (1) is arranged inside the valve body (2), and the upper end of the connecting rod (3) is connected to the valve core (1), characterized in that, A chain seat (7) is installed on the connecting rod (3), a push-pull rod (6) is installed on the chain seat (7), a suspension rod (4) is installed at the lower end of the valve body (2), a sealing device (5) is installed on the valve body (2), the feed end and the discharge end of the valve body (2) are at an angle of 45 degrees, a circular plate with an inner conical hole is arranged in the feed end of the valve body (2), a flange is arranged at the discharge port of the valve body (2), and the valve core (1) is an inverted frustum with an outer wrapping of polytetrafluoroethylene, forming a pair of sealing surfaces with the circular plate with an inner conical hole in the feed end of the valve body (2).

2. The push-pull rod type quick material discharging valve according to claim 1, characterized in that The lower end of the connecting rod (3) has an internal thread, its upper end is connected to the valve core (1), and its lower end is connected to the chain seat (7).

3. The push-pull rod type quick discharging valve according to claim 1, characterized in that, The chain seat (7) is an inverted U-shaped hinge seat, its upper end is a screw rod with an external thread, and both sides of its lower end are provided with pin holes.

4. The push-pull rod type quick material discharging valve according to claim 1, wherein, One end of the push-pull rod (6) is a boss with a round hole, rectangular pin holes (8) and circular pin holes (9) are formed on the push-pull rod (6), the circular pin hole (9) is located on the right side of the rectangular pin hole (8), and the circular pin hole (9) on the push-pull rod (6) and the chain seat (7) are connected by a pin shaft.

5. The push-pull rod type quick discharging valve according to claim 1, characterized in that, The suspension rod (4) is an L-shaped suspension rod, its upper end is welded to the valve body (2), and its lower end is provided with a cylindrical pin shaft, and the cylindrical pin shaft passes through the rectangular pin hole (8) on the push-pull rod (6) to realize the connection with the push-pull rod (6).

6. The push-pull rod type quick material discharging valve according to claim 1, characterized in that, The sealing device (5) consists of a base, packing, gland, and compression bolts.

Images