Casting mold for fire hydrant production

Abstract

The utility model relates to the technical field of fire-fighting equipment production, in particular to a casting mold for fire hydrant production, which comprises a model frame and a model cover covering the upper end of the model frame, the outer wall of the model frame is sleeved with a cooling assembly, and the cooling assembly comprises a cooling box sleeved at the lower end of the outer wall of the model frame. Partition plates are arranged on the inner wall of the lower end of the cooling box. When the casting needs to be cooled, the valve connected with the water inlet pipe can be opened, the valve connected with the water outlet pipe can be closed, cooling water is injected into the cooling tank through the water inlet pipe until the cooling tank is filled with the cooling water, and then the water pump is started and injects the cooling water in the cooling tank into the cooling pipe; the cooling pipe is annular and wound on the outer wall of the model frame, a casting in the model frame is rapidly cooled through circulation of cooling water, cooling forming of the casting is accelerated through circulation cooling of the cooling water, the time needed by fire hydrant production is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire protection facility production technology, and in particular to a casting mold for fire hydrant production. Background Technology

[0002] In urban planning and construction, the configuration of fire hydrants is one of the most basic considerations. Fire hydrants are usually composed of handwheels, valve stems, valve discs, valve covers, valve bodies, etc. Fire hydrant production usually uses casting molds, which are formed by injecting molten metal (such as cast iron, cast steel, etc.) into the mold cavity and cooling it to form the blank of the fire hydrant.

[0003] Existing casting molds used in fire hydrant production often cool the mold by accelerating the airflow around it using fans or ducts, thus speeding up the forming of the casting. However, this cooling method is relatively slow, which may lead to longer production cycles, reduced production efficiency, and increased production costs. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a casting mold for fire hydrant production, in order to solve the technical problem that existing casting molds for fire hydrant production often use fans or air ducts to accelerate the airflow around the mold to cool the mold and accelerate the forming of castings. However, this cooling method has a slow cooling speed, which may lead to a longer production cycle, reduced production efficiency, and increased production costs.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A casting mold for producing fire hydrants includes a mold frame and a mold cover on the upper end of the mold frame. A cooling assembly is fitted on the outer wall of the mold frame. The cooling assembly includes a cooling box fitted on the lower end of the outer wall of the mold frame. A partition is provided on the inner wall of the lower end of the cooling box. A cooling groove is formed on the partition and the bottom end of the cooling box. A water inlet pipe is connected to the outer wall of the lower end of the cooling box. A water outlet pipe is connected to the bottom end of the cooling box. Valves are provided on the outer walls of both the water inlet pipe and the water outlet pipe. A water pump is provided inside the cooling groove. A cooling pipe is provided at the outlet end of the water pump.

[0008] As an improved technical solution, the model frame is fixedly inserted in the middle of the cooling box, and the water outlet of the cooling pipe is connected to the cooling tank.

[0009] As an improved technical solution, the cooling pipe is configured as a multi-ring structure, and the cooling pipe is wound and sleeved on the outer wall of the model frame.

[0010] As an improved technical solution, the upper end of the model cover is provided with a feeding hopper and a handle.

[0011] As an improved technical solution, the cooling box is provided with bases at the four corners of its lower end.

[0012] As an improved technical solution, the upper end of the cooling box is provided with two sets of symmetrical positioning components. The positioning components include a fixing plate fixedly installed on the upper end of the cooling box. The fixing plate has an inner groove in the middle. A fixing block is movably inserted into the inner wall of the inner groove. A rod is fixedly installed at one end of the fixing block. A spring is sleeved on the outer wall of the rod. The two ends of the spring are fixedly connected to the fixing block and the fixing plate, respectively. A screw is threaded into the upper end of the fixing plate. The lower end of the screw and the end of the fixing block near the screw are provided with mutually cooperating convex balls.

[0013] As an improved technical solution, a positioning block is fixedly provided on the outer wall of the model cover, and an insertion hole that cooperates with the insertion rod is opened at the middle end of the positioning block. One end of the insertion rod that passes through the inner groove is movably inserted into the insertion hole.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] 1. In this utility model, when cooling of the casting is required, the valve connected to the inlet pipe can be opened and the valve connected to the outlet pipe can be closed. Cooling water is injected into the cooling tank through the inlet pipe until the cooling tank is full. Then, the water pump is started, and the water pump injects the cooling water in the cooling tank into the cooling pipe. The cooling pipe is in a ring shape and wrapped around the outer wall of the mold frame. Through the circulation of cooling water, the casting in the mold frame is cooled down quickly. The cooling water circulation cooling accelerates the cooling and forming of the casting, reduces the time required for fire hydrant production, and speeds up production efficiency.

[0016] 2. In this utility model, when the casting is removed after cooling, the screw can be rotated upwards so that the convex ball connected to the lower end of the screw moves away from the convex ball connected to the end of the insert rod. Under the reverse elastic force of the spring, the fixing block slides along the inner wall of the inner groove, and the insert rod moves out of the insertion hole in the positioning block. The operator can hold the handle to remove the model cover from the top of the model frame, which makes it convenient for the operator to disassemble the upper and lower mold cores, reduces the workload of the operator, and improves the production efficiency of fire hydrants. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a casting mold for producing fire hydrants according to the present invention;

[0019] Figure 2 This is a three-dimensional cross-sectional view of the overall front view of a casting mold for fire hydrant production according to the present invention.

[0020] Figure 3 This is a three-dimensional cross-sectional structural diagram of the positioning component of a casting mold for fire hydrant production according to the present invention.

[0021] Figure 4 This is a three-dimensional cross-sectional structural diagram of the cooling component of a casting mold for fire hydrant production according to the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the cooling pipe of a casting mold for fire hydrant production according to this utility model.

[0023] In the diagram: 1. Model frame; 2. Model cover; 3. Cooling assembly; 31. Cooling box; 32. Partition plate; 33. Cooling tank; 34. Inlet pipe; 35. Outlet pipe; 36. Valve; 37. Water pump; 38. Cooling pipe; 4. Base; 5. Feed hopper; 6. Handle; 7. Positioning assembly; 71. Fixing plate; 72. Inner groove; 73. Fixing block; 74. Insert rod; 75. Spring; 76. Screw; 77. Convex ball; 78. Positioning block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Meanwhile, the meaning of "and / or" or "the / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0027] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] like Figures 1-5 As shown in the figure, this embodiment provides a casting mold for fire hydrant production, including a mold frame 1 and a mold cover 2 covering the upper end of the mold frame 1. A cooling assembly 3 is fitted on the outer wall of the mold frame 1. The cooling assembly 3 includes a cooling box 31 fitted on the lower end of the outer wall of the mold frame 1. A partition 32 is provided on the lower inner wall of the cooling box 31. A cooling groove 33 is formed at the bottom end of the partition 32 and the cooling box 31. A water inlet pipe 34 is connected to the lower outer wall of the cooling box 31. A water inlet pipe 34 is connected to the bottom end of the cooling box 31. The outer walls of the water outlet pipe 35, the water inlet pipe 34, and the water outlet pipe 35 are all equipped with valves 36. The cooling tank 33 is equipped with a water pump 37. The water outlet end of the water pump 37 is equipped with a cooling pipe 38. The model frame 1 is fixedly inserted into the middle of the cooling box 31. The water outlet end of the cooling pipe 38 is connected to the cooling tank 33. The cooling pipe 38 is set as a multi-ring structure. The cooling pipe 38 is wrapped around the outer wall of the model frame 1. The upper end of the model cover 2 is equipped with a feeding hopper 5 and a handle 6. The lower end of the cooling box 31 is equipped with a base 4 at the four corners.

[0029] When cooling of the casting is required, valve 36 connected to inlet pipe 34 can be opened and valve 36 connected to outlet pipe 35 can be closed to inject cooling water into cooling tank 33 through inlet pipe 34 until cooling water fills cooling tank 33. Then, water pump 37 is started, and water pump 37 injects cooling water in cooling tank 33 into cooling pipe 38. Cooling pipe 38 is in the shape of a ring and wrapped around the outer wall of mold frame 1. Through the circulation of cooling water, the casting in mold frame 1 is cooled down quickly. When the cooling water becomes ineffective after multiple circulations, valve 36 connected to outlet pipe 35 is opened to discharge the ineffective cooling water. Then, cooling water is re-injected according to the above steps. Cooling water circulation cools down the casting, accelerates the cooling and forming of the casting, reduces the time required for fire hydrant production, and speeds up production efficiency.

[0030] The upper end of the cooling box 31 is provided with two sets of symmetrical positioning components 7. The positioning components 7 include a fixing plate 71 fixedly installed on the upper end of the cooling box 31. The middle of the fixing plate 71 is provided with an inner groove 72. A fixing block 73 is movably inserted into the inner wall of the inner groove 72. One end of the fixing block 73 is fixedly provided with an insertion rod 74. A spring 75 is sleeved on the outer wall of the insertion rod 74. The two ends of the spring 75 are fixedly connected to the fixing block 73 and the fixing plate 71 respectively. A screw 76 is threaded into the upper end of the fixing plate 71. The lower end of the screw 76 and the end of the fixing block 73 near the screw 76 are provided with mutually cooperating convex balls 77.

[0031] The outer wall of the model cover 2 is fixedly provided with a positioning block 78. The middle end of the positioning block 78 is provided with a socket that cooperates with the insertion rod 74. One end of the insertion rod 74 passes through the inner groove 72 and is movably inserted into the socket.

[0032] When the casting is removed after cooling, the screw 76 can be rotated upwards, causing the convex ball 77 connected to the lower end of the screw 76 to move away from the convex ball 77 connected to the end of the insert rod 74. Under the reverse elastic force of the spring 75, the fixing block 73 slides along the inner wall of the inner groove 72, and the insert rod 74 moves out of the insertion hole in the positioning block 78. The operator can then use the handle 6 to remove the model cover 2 from the upper end of the model frame 1, which facilitates the disassembly of the upper and lower mold cores, reduces the workload of the operator, and improves the production efficiency of the fire hydrant. When the model cover 2 needs to be installed, the model cover 2 is placed on the upper end of the model frame 1, and then the screw 76 is rotated downwards. The convex ball 77 connected to the lower end of the screw 76 slides downwards along the convex ball 77 set at one end of the fixing block 73. The fixing block 73 slides along the inner wall of the inner groove 72 and compresses the spring 75 until the insert rod 74 is inserted into the insertion hole opened in the middle of the positioning block 78, which facilitates the positioning of the model cover 2 and makes it easier for the operator to open and close the model frame 1 and the model cover 2, reducing the workload of the operator.

[0033] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A casting mold for hydrant production, comprising a mold frame (1) and a mold cover (2) arranged on the upper end of the mold frame (1), characterized in that: The outer wall of the model frame (1) is fitted with a cooling assembly (3). The cooling assembly (3) includes a cooling box (31) fitted at the lower end of the outer wall of the model frame (1). The inner wall of the lower end of the cooling box (31) is provided with a partition (32). The partition (32) and the bottom end of the cooling box (31) are provided with a cooling groove (33). The outer wall of the lower end of the cooling box (31) is connected to a water inlet pipe (34). The bottom end of the cooling box (31) is connected to a water outlet pipe (35). The outer walls of the water inlet pipe (34) and the water outlet pipe (35) are both provided with valves (36). The cooling groove (33) is provided with a water pump (37). The water outlet end of the water pump (37) is provided with a cooling pipe (38).

2. The fire hydrant production casting mold of claim 1, wherein: The model frame (1) is fixedly inserted in the middle of the cooling box (31), and the water outlet of the cooling pipe (38) is connected to the cooling tank (33).

3. The hydrant production casting mold of claim 1, wherein: The cooling pipe (38) is configured as a multi-ring structure and is wrapped around the outer wall of the model frame (1).

4. The hydrant production casting mold of claim 1, wherein: The upper end of the model cover (2) is provided with a feeding hopper (5) and a handle (6).

5. The hydrant production casting mold of claim 4, wherein: The cooling box (31) is provided with bases (4) at the four corners of its lower end.

6. The hydrant production casting mold of claim 1, wherein: The upper end of the cooling box (31) is provided with two sets of symmetrical positioning components (7). The positioning components (7) include a fixing plate (71) fixedly installed on the upper end of the cooling box (31). The middle end of the fixing plate (71) is provided with an inner groove (72). A fixing block (73) is movably inserted into the inner wall of the inner groove (72). A plug rod (74) is fixedly installed at one end of the fixing block (73). A spring (75) is sleeved on the outer wall of the plug rod (74). The two ends of the spring (75) are fixedly connected to the fixing block (73) and the fixing plate (71) respectively. A screw (76) is threaded into the upper end of the fixing plate (71). The lower end of the screw (76) and the end of the fixing block (73) near the screw (76) are provided with mutually cooperating convex balls (77).

7. The fire hydrant production casting mold of claim 6, wherein: The outer wall of the model cover (2) is fixedly provided with a positioning block (78), and the middle end of the positioning block (78) is provided with a socket hole that cooperates with the insertion rod (74). One end of the insertion rod (74) passes through the inner groove (72) and is movably inserted into the socket hole.

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