Casting mold for mechanical fireproof safety valve

Abstract

The utility model relates to the technical field of safety valve casting, and discloses a mechanical fireproof safety valve casting mold, which solves the problem that the existing safety valve body is inconvenient to demold in the casting process, and comprises a base, a lower mold is arranged at the top of the base, a sealing ring is fixedly connected to the top of the base, and the sealing ring is sleeved on the outer side of the lower mold. An upper mold matched with the lower mold is arranged over the lower mold, a driving mechanism is arranged at the top of the upper mold and comprises a U-shaped round rod fixed to the top of the base, the outer side of the U-shaped round rod is movably sleeved with a frame, the inner side of the frame is symmetrically and fixedly connected with two L-shaped round rods, and the outer sides of the two L-shaped round rods are movably sleeved with inserting plates; positioning rings are fixedly connected to the outer sides of the two L-shaped round rods in a sleeving manner; according to the safety valve body demolding device, the demolding air cylinder is matched with the frame and the U-shaped round rod, so that the lower mold is conveniently lifted, automatic demolding is facilitated, and a safety valve body is prevented from being damaged.

Description

Technical Field

[0001] This utility model belongs to the field of safety valve casting technology, specifically a casting mold for a mechanical fireproof safety valve. Background Technology

[0002] A safety valve is a special valve whose opening and closing element is normally closed under the action of external force. When the pressure of the medium in the equipment or pipeline rises above the specified value, it prevents the pressure of the medium in the pipeline or equipment from exceeding the specified value by discharging the medium to the outside of the system. Safety valves belong to the category of automatic valves and are mainly used on boilers, pressure vessels and pipelines to control the pressure to not exceed the specified value, playing an important protective role for personal safety and equipment operation.

[0003] In the existing technology, the valve body of the safety valve is generally demolded manually during the casting process, which results in high labor intensity for workers, is time-consuming and labor-intensive, and is also difficult to control the force during demolding, which can easily lead to demolding deviation, damage to the finished product, and affect its later use. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a mechanical fireproof safety valve casting mold, which effectively solves the problem that the valve body of the current safety valve is inconvenient to demold during the casting process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mechanical fireproof safety valve casting mold, including a base, a lower mold placed on the top of the base, a sealing ring fixedly connected to the top of the base, the sealing ring being sleeved on the outside of the lower mold, an upper mold matching it being provided directly above the lower mold, and a driving mechanism being provided on the top of the upper mold.

[0006] The drive mechanism includes a U-shaped rod fixed to the top of the base. A frame is movably sleeved on the outer side of the U-shaped rod. Two L-shaped rods are symmetrically fixedly connected to the inner side of the frame. Insert plates are movably sleeved on the outer side of each of the two L-shaped rods. Positioning rings are fixedly sleeved on the outer side of each of the two L-shaped rods. The lower mold is located between the two insert plates. Two slots are symmetrically provided on both sides of the lower mold. A sleeve plate is fixedly sleeved on the middle of the outer side of the U-shaped rod. Two demolding cylinders are symmetrically fixedly installed between the bottom of the sleeve plate and the top of the frame.

[0007] Preferably, the frame is provided with two symmetrical sliding grooves, and the top of each of the two insert plates is fixedly connected to a sliding plate, and the two sliding plates are slidably connected to the two sliding grooves respectively.

[0008] Preferably, two guide posts are symmetrically fixedly connected to the outer side of the frame, and a guide plate is movably sleeved between the two guide posts. Two movable rods are symmetrically rotatably connected to the side of the guide plate near the frame, and the ends of the two movable rods away from the guide plate are respectively rotatably connected to two sliding plates.

[0009] Preferably, a screw is rotatably connected to the outer side of the frame, and a turntable is fixedly connected to the end of the screw away from the frame. A guide plate is threaded onto the outer side of the screw.

[0010] Preferably, a lifting plate is fixedly connected to the top of the upper mold, a casting cylinder is fixedly installed between the top of the lifting plate and the bottom of the sleeve plate, and the lifting plate is movably sleeved on the outside of the U-shaped round rod.

[0011] Preferably, the lifting plate is located inside the frame, and the top center of the frame is provided with a clearance hole, through which the casting cylinder passes.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The upper mold descends and the lower mold closes through the cooperation between the casting cylinder, the lifting plate, and the U-shaped rod, which facilitates the casting of the safety valve body. At the same time, the top of the safety valve body is limited. The lower mold is clamped through the cooperation between the turntable, screw, guide plate, guide column, movable rod, slide plate, slide groove, insert plate, L-shaped rod and slot. The lower mold is lifted through the cooperation between the demolding cylinder, the frame and the U-shaped rod, which facilitates automatic demolding and avoids damage to the safety valve body.

[0014] 2. The cooperation between the casting cylinder, the lifting plate, and the U-shaped rod facilitates the stable descent of the upper mold and the closing of the lower mold, thereby facilitating the casting and molding of the safety valve body. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the casting mold structure for the mechanical fireproof safety valve of this utility model;

[0018] Figure 2 This is a schematic diagram of the drive mechanism structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the insert plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the guide plate structure of this utility model.

[0022] In the diagram: 1. Base; 2. Drive mechanism; 201. U-shaped round rod; 202. Casting cylinder; 203. Sleeve plate; 204. Demolding cylinder; 205. Lifting plate; 206. Frame; 207. Insert plate; 208. Guide plate; 209. Positioning ring; 2010. Slide plate; 2011. L-shaped round rod; 2012. Slide groove; 2013. Movable rod; 2014. Guide column; 2015. Turntable; 2016. Screw; 3. Slot; 4. Lower mold; 5. Sealing ring; 6. Upper mold. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example 1, by Figure 1 The present invention relates to a casting mold for a mechanical fireproof safety valve, comprising a base 1, a lower mold 4 placed on the top of the base 1, a sealing ring 5 fixedly connected to the top of the base 1, the sealing ring 5 being sleeved on the outside of the lower mold 4, an upper mold 6 matching the lower mold 4 being provided directly above the lower mold 4, and a driving mechanism 2 being provided on the top of the upper mold 6.

[0025] Specifically, by Figure 2-5The drive mechanism 2 includes a U-shaped rod 201 fixed to the top of the base 1. A frame 206 is movably sleeved on the outer side of the U-shaped rod 201. Two L-shaped rods 2011 are symmetrically fixedly connected to the inner side of the frame 206. Insert plates 207 are movably sleeved on the outer side of each L-shaped rod 2011. Positioning rings 209 are fixedly sleeved on the outer side of each L-shaped rod 2011. The lower mold 4 is located between the two insert plates 207. Two slots 3 are symmetrically provided on both sides of the lower mold 4. A sleeve plate 203 is fixedly sleeved on the middle of the outer side of the U-shaped rod 201. Two demolding cylinders 204 are symmetrically fixedly installed between the bottom of the sleeve plate 203 and the top of the frame 206. Two sliding grooves 201 are symmetrically provided on the frame 206. 2. Slide plates 2010 are fixedly connected to the top of both insert plates 207. The two slide plates 2010 are slidably connected to the two slide grooves 2012 respectively. Two guide posts 2014 are symmetrically fixedly connected to the outer side of the frame 206. A guide plate 208 is movably sleeved between the two guide posts 2014. Two movable rods 2013 are symmetrically rotatably connected to the side of the guide plate 208 near the frame 206. The ends of the two movable rods 2013 away from the guide plate 208 are rotatably connected to the two slide plates 2010 respectively. A screw 2016 is rotatably connected to the outer side of the frame 206. A turntable 2015 is fixedly connected to the end of the screw 2016 away from the frame 206. The guide plate 208 is threadedly sleeved on the outer side of the screw 2016.

[0026] In operation, the turntable 2015 is rotated first, which drives the screw 2016 to rotate and causes the guide plate 208 to slide along the two guide posts 2014. At the same time, the two movable rods 2013 drive the two slide plates 2010 to slide along the two slide grooves 2012 respectively, while the two insert plates 207 slide along the two L-shaped round rods 2011 respectively. When the insert plate 207 abuts against the positioning ring 209, the insert plate 207 is inserted into the slot 3, completing the clamping of the lower mold 4. Then, the two demolding cylinders 204 are activated, which drive the frame 206 to slide upward along the U-shaped round rod 201 and lift the lower mold 4 upward so that the cast safety valve body is exposed. Finally, the automatic demolding is completed.

[0027] Specifically, by Figure 2 As shown, a lifting plate 205 is fixedly connected to the top of the upper mold 6. A casting cylinder 202 is fixedly installed between the top of the lifting plate 205 and the bottom of the sleeve plate 203. The lifting plate 205 is movably sleeved on the outside of the U-shaped round rod 201. The lifting plate 205 is located inside the frame 206. A clearance round hole is provided in the middle of the top of the frame 206. The casting cylinder 202 passes through the clearance round hole.

[0028] In operation, the casting cylinder 202 is first activated, which drives the lifting plate 205 to slide down along the U-shaped rod 201 and drives the upper mold 6 to descend stably and close with the lower mold 4, thus realizing the casting of the safety valve body. At the same time, the top of the safety valve body is limited, which makes it easier to lift the lower mold 4 for demolding later.

Claims

1. A casting mold for a mechanical fireproof safety valve, comprising a base (1), a lower mold (4) placed on top of the base (1), a sealing ring (5) fixedly connected to the top of the base (1), the sealing ring (5) being fitted around the outside of the lower mold (4), and an upper mold (6) matching the lower mold (4) being provided directly above the lower mold (4), characterized in that: The top of the upper mold (6) is provided with a driving mechanism (2); The drive mechanism (2) includes a U-shaped rod (201) fixed to the top of the base (1). A frame (206) is movably sleeved on the outside of the U-shaped rod (201). Two L-shaped rods (2011) are symmetrically fixedly connected to the inside of the frame (206). Insert plates (207) are movably sleeved on the outside of the two L-shaped rods (2011). Positioning rings (209) are fixedly sleeved on the outside of the two L-shaped rods (2011). The lower mold (4) is located between the two insert plates (207). Two slots (3) are symmetrically provided on both sides of the lower mold (4). A sleeve plate (203) is fixedly sleeved on the middle of the outside of the U-shaped rod (201). Two demolding cylinders (204) are symmetrically fixedly installed between the bottom of the sleeve plate (203) and the top of the frame (206).

2. The casting mold for a mechanical fireproof safety valve according to claim 1, characterized in that: The frame (206) is symmetrically provided with two sliding grooves (2012), and the top of the two insert plates (207) are fixedly connected with sliding plates (2010), and the two sliding plates (2010) are slidably connected to the two sliding grooves (2012) respectively.

3. The casting mold for a mechanical fireproof safety valve according to claim 1, characterized in that: Two guide posts (2014) are symmetrically fixedly connected to the outer side of the frame (206). A guide plate (208) is movably sleeved between the two guide posts (2014). Two movable rods (2013) are symmetrically rotatably connected to the side of the guide plate (208) near the frame (206). The ends of the two movable rods (2013) away from the guide plate (208) are rotatably connected to two sliding plates (2010) respectively.

4. The casting mold for a mechanical fireproof safety valve according to claim 1, characterized in that: A screw (2016) is rotatably connected to the outside of the frame (206), and a turntable (2015) is fixedly connected to the end of the screw (2016) away from the frame (206). A guide plate (208) is threaded onto the outside of the screw (2016).

5. The casting mold for a mechanical fireproof safety valve according to claim 1, characterized in that: The top of the upper mold (6) is fixedly connected to a lifting plate (205), and a casting cylinder (202) is fixedly installed between the top of the lifting plate (205) and the bottom of the sleeve plate (203). The lifting plate (205) is movably sleeved on the outside of the U-shaped round rod (201).

6. The casting mold for a mechanical fireproof safety valve according to claim 5, characterized in that: The lifting plate (205) is located inside the frame (206), and the top center of the frame (206) is provided with a clearance hole, through which the cast cylinder (202) passes.

Images