Solenoid valve capable of being quickly opened and closed

Abstract

The utility model relates to the technical field of electromagnetic valves, and discloses a quick opening and closing electromagnetic valve which comprises a valve body, an electromagnetic piston and a drain hole formed in the valve body, a sealing unit for sealing the drain hole is installed on the bottom face of the valve body, the sealing unit comprises a sealing sleeve, and a sliding rod is connected to the inner wall of the sealing sleeve in a sliding mode. The upper end of the sliding rod penetrates into the valve body and is fixedly connected with a rubber sealing plug, the upper end of the rubber sealing plug is of a conical structure, a penetrating connecting rod is fixedly installed on the outer wall of the lower end of the sliding rod, and two pushing units matched with the connecting rod to push the sliding rod to ascend are installed on the bottom face of the valve body. The sealing unit is installed on the bottom face of the valve body, when the electromagnetic piston cannot work in a power failure, the sliding rod can be manually moved to enable the rubber sealing plug to be inserted into the drain hole in the valve body for sealing, the valve body can be rapidly opened and closed in the power failure state, and then control over liquid conveying is guaranteed; the device is suitable for being used in emergency, and the adaptability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a rapid opening and closing electromagnetic valve. Background Art

[0002] Solenoid valves are industrial equipment controlled by electromagnetics. They are basic automation components used to control fluid flow. They are actuators and are not limited to hydraulic or pneumatic. They are used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, and the accuracy and flexibility of the control can be guaranteed. There are many types of solenoid valves, and different solenoid valves play a role in different positions in the control system. Solenoid valves are normally open and normally closed. When the electromagnetic coil is energized, the valve core (piston plug) of the normally open solenoid valve is closed, and when the electromagnetic coil is energized, the valve core (piston plug) of the normally closed solenoid valve is opened.

[0003] Prior art, such as the patent with publication number CN107606176A, discloses a fast opening and closing solenoid valve, including a valve body, wherein the valve body is provided with an inlet, an outlet and an installation port, a longitudinal coil frame is installed on the valve body at the installation port by bolts, a piston plug and a longitudinal movable iron core are installed in the longitudinal coil frame, one end of the piston plug is located in the valve body, and the other end is connected to the longitudinal movable iron core by a first longitudinal spring, a longitudinal coil matching with the longitudinal movable iron core is installed in the longitudinal coil frame; a longitudinal coil frame cover is installed on the longitudinal coil frame by bolts, a final longitudinal spring is arranged in the longitudinal coil frame cover, and a transverse electromagnetic locking device for locking the piston plug is installed on the valve body near the longitudinal coil frame; the solenoid valve not only has a fast opening and closing speed, but also maintains the state of the piston plug after the position is changed, and does not require the coil to be continuously energized.

[0004] The existing technology still has shortcomings:

[0005] When the solenoid valve in the above-mentioned prior art is used in a normally open solenoid valve, if the valve needs to be closed, it must rely on electric drive. However, when the power fails, the battery valve cannot be closed, resulting in continuous flow of liquid. In the face of emergencies, it is difficult to control the liquid, affecting use. For this reason, a quick opening and closing solenoid valve is proposed. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a fast opening and closing solenoid valve, which can still quickly open and close the valve in a power outage state, thereby improving practicality and adaptability.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solenoid valve with quick opening and closing, comprising a valve body, an electromagnetic piston and a water flow hole opened in the valve body, a sealing unit for sealing the water flow hole being installed on the bottom surface of the valve body, the sealing unit comprising a sealing sleeve, a sliding rod being slidably connected to the inner wall of the sealing sleeve, the upper end of the sliding rod being penetrated into the valve body and fixedly connected to a rubber sealing plug, the upper end of the rubber sealing plug being a conical structure, a connecting rod being fixedly installed on the outer wall of the lower end of the sliding rod, two pushing units cooperating with the connecting rod to push the sliding rod up being installed on the bottom surface of the valve body, a limiting unit being installed on the bottom surface of the valve body, the limiting unit cooperating with the pushing unit and the connecting rod to limit and lock the sliding rod.

[0008] Preferably, the pushing unit includes two fixed rods fixedly connected to the bottom surface of the valve body, a rotating rod is rotatably connected between the two fixed rods, two parallel sleeve rods are fixedly connected to the outer wall of the rotating rod, a sliding groove is provided on the side wall of the sleeve rod, the sliding groove is slidably connected to the outer wall of the connecting rod, the sleeve rods in the two pushing units slide staggered on the outer wall of the connecting rod, and a pull rod is fixedly connected to the outer wall of the fixed rod.

[0009] Preferably, the pushing unit further comprises a T-shaped frame, which is fixedly installed between the two sleeve rods, and the other end of the T-shaped frame is fixedly connected to the outer wall of the pull rod.

[0010] Preferably, the pushing unit further comprises an extension rod, and the extension rod is slidably connected in the pull rod.

[0011] Preferably, the limiting unit includes a bracket fixedly mounted on the bottom surface of the valve body, the side wall of the bracket penetrates and is slidably connected with two plug rods, one end of the two plug rods is commonly fixedly connected with a pull plate, the middle outer walls of the two plug rods are commonly fixedly connected with the limiting plate, the plug rods are movably connected with the sliding grooves on the sleeve rods in the two pushing units, the outer wall of the plug rod is sleeved with a spring, and the spring is located between the bracket and the limiting plate.

[0012] Preferably, the limiting unit further comprises a limiting frame fixedly mounted on the bottom surface of the valve body, and two insertion holes are formed through the side wall of the limiting frame, and the insertion rod is movably plugged into the insertion holes.

[0013] Preferably, the limiting unit further comprises two mounting blocks fixedly connected to the side walls of the bracket, a hook plate is rotatably connected between the two mounting blocks, and the hook plate is movably sleeved on the outer wall of the limiting plate.

[0014] Preferably, the connecting rod includes a main rod and two auxiliary rods that pass through the sliding rod and are rotatably connected to the sliding rod. Both ends of the main rod are provided with mounting holes. One end of the auxiliary rod is fixedly connected to an outer rotating rod. The outer rotating rod is rotatably connected in the mounting hole through a bearing. The main rod and the outer rotating rod are respectively slidably connected in the sliding grooves on the sleeve rods in the two pushing units.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model installs a sealing unit on the bottom surface of the valve body. When the electromagnetic piston cannot work due to a power outage, the sliding rod can be manually moved to insert the rubber sealing plug into the water flow hole on the valve body for sealing. The valve body can be quickly opened and closed in a power outage state, thereby ensuring the control of liquid delivery, adapting to use in emergency situations, and improving adaptability.

[0017] 2. The utility model installs a pushing unit on the bottom surface of the valve body. The pushing unit cooperates with the connecting rod at the end of the sliding rod to drive the sliding rod to push up, so that the rubber sealing plug seals the water flow hole on the valve body. The pushing unit adopts the lever principle, and the force required to push up the sliding rod is smaller, which is easy to use.

[0018] 3. The utility model installs a limit unit on the bottom surface of the valve body. After the pushing unit pushes up the sliding rod to make the rubber sealing plug seal the water flow hole, the limit unit can be used to limit the pushing unit so that it cannot rotate, thereby preventing the sliding rod from sliding down, so as to adapt to the use of valve bodies with larger flow rates and avoid the phenomenon that the rubber sealing plug is flushed out of the water flow hole due to a large amount of liquid, thereby improving practicality.

[0019] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the valve body of the utility model;

[0022] Figure 3 It is a schematic diagram of the position structure of the push unit, the limit unit and the slide rod of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the push unit of the utility model in conjunction with the connecting rod;

[0024] Figure 5 This is a schematic diagram of the limiting structure of the limiting unit on the pushing unit of the utility model;

[0025] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0026] Figure 7 It is a structural schematic diagram of the connecting rod of the utility model.

[0027] In the figure: 1. valve body; 2. electromagnetic piston; 3. water flow hole; 4. sealing unit; 41. sealing sleeve; 42. sliding rod; 43. rubber sealing plug; 5. connecting rod; 51. main rod; 52. auxiliary rod; 53. mounting hole; 54. outer rotating rod; 6. pushing unit; 61. fixing rod; 62. rotating rod; 63. sleeve rod; 64. slide groove; 65. pull rod; 66. extension rod; 67. T-shaped frame; 7. limiting unit; 71. bracket; 72. plug rod; 73. pull plate; 74. limiting plate; 75. spring; 76. limiting frame; 77. socket; 78. mounting block; 79. hook plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-7 The quick opening and closing solenoid valve of this embodiment includes a valve body 1, an electromagnetic piston 2 and a water flow hole 3 opened in the valve body 1. A sealing unit 4 for sealing the water flow hole 3 is installed on the bottom surface of the valve body 1. The sealing unit 4 includes a sealing sleeve 41. The inner wall of the sealing sleeve 41 is slidably connected with a slide rod 42. The upper end of the slide rod 42 is penetrated into the valve body 1 and fixedly connected with a rubber sealing plug 43. The upper end of the rubber sealing plug 43 is a conical structure. A penetrating connecting rod 5 is fixedly installed on the outer wall of the lower end of the slide rod 42. Two pushing units 6 cooperating with the connecting rod 5 to push the slide rod 42 to rise are installed on the bottom surface of the valve body 1. A limiting unit 7 is installed on the bottom surface of the valve body 1. The limiting unit 7 cooperates with the pushing unit 6 and the connecting rod 5 to limit and lock the slide rod 42.

[0030] like Figure 1-4As shown, the electromagnetic valve structure in the utility model is similar to the existing electromagnetic valve structure, such as a quick opening and closing electromagnetic valve disclosed in the patent with publication number CN107606176A. The main improvement of the utility model is that the valve can still be quickly opened and closed in the power outage state, which improves the practicality and adaptability; the valve body 1, the electromagnetic piston 2 and the water flow hole 3 opened in the valve body 1 in the utility model are all prior arts, and the electromagnetic piston 2 is installed on the valve body 1. When the electromagnetic piston 2 is powered off, the piston plug of the electromagnetic piston 2 rises and does not block the water flow hole 3. When the electromagnetic piston 2 is powered on, the piston plug of the electromagnetic piston 2 descends to block and seal the water flow hole 3; if a power outage occurs, it is necessary to When the liquid delivery is closed, the slide rod 42 can be pushed up, and the slide rod 42 slides with the inner wall of the sealing sleeve 41. The sealing sleeve 41 seals the slide rod 42, and the slide rod 42 drives the rubber sealing plug 43 at its upper end to be inserted into the water flow hole 3 in the valve body 1. The rubber sealing plug 43 with a conical structure at the upper end can guide the water flowing out of the water flow hole 3 when moving upward to reduce the upward resistance. After the rubber sealing plug 43 is inserted into the water flow hole 3, the elasticity of the rubber is used to squeeze and fix it with the inner wall of the water flow hole 3 to achieve the closure of the valve body 1, thereby stopping the liquid delivery. The valve body 1 can be quickly opened and closed in a power outage state, thereby ensuring the control of liquid delivery, adapting to the use in emergency situations, and improving adaptability.

[0031] like Figure 3 , 4 As shown, the pushing unit 6 includes two fixed rods 61 fixedly connected to the bottom surface of the valve body 1, a rotating rod 62 is rotatably connected between the two fixed rods 61, and two parallel sleeve rods 63 are fixedly connected to the outer wall of the rotating rod 62. The side wall of the sleeve rod 63 is provided with a slide groove 64, and the slide groove 64 is slidably connected to the outer wall of the connecting rod 5. The sleeve rods 63 in the two pushing units 6 slide on the outer wall of the connecting rod 5 in an offset manner, and the outer wall of the fixed rod 61 is fixedly connected with a pull rod 65; when it is necessary to move the slide rod 42 upward, the pull rods 65 in the two pushing units 6 are pulled close to each other, and the pull rods 65 drive the rotating rod 62 to rotate, and the fixed rod 61 The rotating rod 62 is supported, and the rotating rod 62 drives the sleeve rod 63 to rotate. The sliding groove 64 on the sleeve rod 63 slides with the outer wall of the connecting rod 5 on the outer wall of the slide rod 42, and then the rotation of the sleeve rod 63 is used to move the connecting rod 5 upward, and the connecting rod 5 drives the slide rod 42 upward until the sleeve rods 63 in the two pushing units 6 are parallel. At this time, the rubber sealing plug 43 is inserted into the water flow hole 3 to complete the sealing. The pull rod 65 cooperates with the rotating rod 62 and the sleeve rod 63 to form a lever principle, which makes it more labor-saving when pushing up the slide rod 42. When the water flow hole 3 needs to be opened, it is only necessary to pull back the pull rod 65, thereby improving the convenience of use.

[0032] like Figure 4As shown, the pushing unit 6 also includes a T-frame 67, which is fixedly installed between the two sleeve rods 63, and the other end of the T-frame 67 is fixedly connected to the outer wall of the pull rod 65; the T-frame 67 is connected to the pull rod 65 and the sleeve rod 63. The support of the T-frame 67 can improve the strength of the pull rod 65 and the sleeve rod 63 to avoid bending due to excessive force.

[0033] like Figure 4 As shown, the pushing unit 6 also includes an extension rod 66, which is slidably connected to the pull rod 65; the extension rod 66 can be pulled from inside and outside the pull rod 65 to increase the rod length, thereby saving more effort when pushing up the sliding rod 42 and facilitating use.

[0034] like Figure 5 As shown, the limiting unit 7 includes a bracket 71 fixedly mounted on the bottom surface of the valve body 1, and the side wall of the bracket 71 passes through and is slidably connected with two plug rods 72, one end of the two plug rods 72 is commonly fixedly connected with a pull plate 73, and the middle outer walls of the two plug rods 72 are commonly fixedly connected with a limiting plate 74, and the plug rod 72 is movably plugged into the slide groove 64 on the sleeve rod 63 in the two pushing units 6, and the outer wall of the plug rod 72 is sleeved with a spring 75, and the spring 75 is located between the bracket 71 and the limiting plate 74; when the pushing unit 6 rotates, the pull plate 73 is pulled outward to make the plug rod 72 away from the sleeve rod 63, so that the spring 75 is compressed, and the plug rod 72 in the two pushing units 6 is moved away from the sleeve rod 63. After the sleeve rod 63 is turned to the horizontal position, the pull plate 73 can be loosened. Under the elastic force of the spring 75, the insertion rod 72 and the bracket 71 slide, so that the insertion rod 72 is inserted into the slide groove 64 on the multiple sleeve rods 63 until the limit plate 74 abuts against the outer wall of one of the sleeve rods 63. The bracket 71 restricts the insertion rod 72, and the insertion rod 72 restricts the sleeve rod 63, so that the sleeve rod 63 does not rotate, and then the sleeve rod 63 restricts the sliding rod 42 through the connecting rod 5, so that the sliding rod 42 does not move downward, thereby maintaining the blockage of the water flow hole 3 by the rubber sealing plug 43, which can adapt to the use of the valve body 1 with a large water flow rate and improve the stability of the sealing of the water flow hole 3.

[0035] like Figure 5 As shown, the limit unit 7 also includes a limit frame 76 fixedly mounted on the bottom surface of the valve body 1, and two insertion holes 77 are formed through the side wall of the limit frame 76, and the insertion rod 72 is movably connected with the insertion holes 77; the insertion rod 72 passes through the sleeve rod 63 and is inserted into the insertion hole 77 on the limit frame 76, and the limit frame 76 limits this end of the insertion rod 72 and improves its strength, thereby improving the limiting strength of the sliding rod 42.

[0036] like Figure 5 , 6As shown, the limiting unit 7 also includes two mounting blocks 78 fixedly connected to the side walls of the bracket 71, and a hook plate 79 is rotatably connected between the two mounting blocks 78, and the hook plate 79 is movably sleeved on the outer wall of the limiting plate 74; when it is necessary to move the insertion rod 72 back to make way for the sleeve rod 63, the limiting plate 74 is pulled close to the bracket 71, and the hook plate 79 is rotated so that the hook plate 79 is sleeved on the limiting plate 74, thereby restricting the limiting plate 74, so that the insertion rod 72 cannot move outward by the elastic force of the spring 75, thereby facilitating the rotation of the sleeve rod 63.

[0037] like Figure 4 , 7 As shown, the connecting rod 5 includes a main rod 51 and two auxiliary rods 52 that penetrate the sliding rod 42 and are rotatably connected to the sliding rod 42. Both ends of the main rod 51 are provided with mounting holes 53. One end of the auxiliary rod 52 is fixedly connected with an outer rotating rod 54. The outer rotating rod 54 is rotatably connected in the mounting hole 53 through a bearing. The main rod 51 and the outer rotating rod 54 are respectively slidably connected in the sliding groove 64 on the sleeve rod 63 in the two pushing units 6; the connecting rod 5 is composed of the main rod 51 and the auxiliary rod 52. The sleeve rod 63 in the two pushing units 6 is respectively sleeved on the two ends of the main rod 51 and the outer wall of the auxiliary rod 52 through the sliding groove 64. When the sleeve rod 63 rotates, the sleeve rod 63 drives the main rod 51 and the auxiliary rod 52 to rotate, thereby reducing friction and wear.

[0038] The implementation steps in this embodiment are as follows: when a power outage occurs and the liquid delivery needs to be shut down, the pull rods 65 in the two pushing units 6 are pulled together, the pull rods 65 drive the rotating rod 62 to rotate, the fixed rod 61 supports the rotating rod 62, the rotating rod 62 drives the sleeve rod 63 to rotate, the slide groove 64 on the sleeve rod 63 slides with the outer wall of the connecting rod 5 on the outer wall of the slide rod 42, and then the sleeve rod 63 is rotated to move the connecting rod 5 upward, and the connecting rod 5 drives the slide rod 42 upward until the sleeve rods 63 in the two pushing units 6 turn to be parallel, at this time, the hook plate 79 is rotated so that it does not restrict the limit plate 74, and under the elastic force of the spring 75, the rod is inserted The cam 72 is pressed against the bottom surface of the valve body 71 and the cam 73 is pressed against the bottom surface of the valve body 71, and the cam 73 is pressed against the bottom surface of the valve body 71, so that the cam 72 is pressed against the bottom surface of the valve body 71.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A quick opening and closing electromagnetic valve, comprising a valve body (1), an electromagnetic piston (2) and a water flow hole (3) provided in the valve body (1), characterized in that: The bottom surface of the valve body (1) is provided with a sealing unit (4) for sealing the water flow hole (3), the sealing unit (4) comprising a sealing sleeve (41), the inner wall of the sealing sleeve (41) being slidably connected to a sliding rod (42), the upper end of the sliding rod (42) being inserted into the valve body (1) and fixedly connected to a rubber sealing plug (43), the upper end of the rubber sealing plug (43) being a conical structure, the outer wall of the lower end of the sliding rod (42) being fixedly provided with a penetrating connecting rod (5), the bottom surface of the valve body (1) being provided with two pushing units (6) for cooperating with the connecting rod (5) to push the sliding rod (42) upward, the bottom surface of the valve body (1) being provided with a limiting unit (7), the limiting unit (7) cooperating with the pushing unit (6) and the connecting rod (5) to limit and lock the sliding rod (42).

2. A fast opening and closing solenoid valve according to claim 1, characterized in that: The pushing unit (6) comprises two fixed rods (61) fixedly connected to the bottom surface of the valve body (1); a rotating rod (62) is rotatably connected between the two fixed rods (61); two parallel sleeve rods (63) are fixedly connected to the outer wall of the rotating rod (62); a sliding groove (64) is provided on the side wall of the sleeve rod (63); the sliding groove (64) is slidably connected to the outer wall of the connecting rod (5); the sleeve rods (63) in the two pushing units (6) slide on the outer wall of the connecting rod (5) in an offset manner; and a pull rod (65) is fixedly connected to the outer wall of the fixed rod (61).

3. A fast opening and closing solenoid valve according to claim 2, characterized in that: The pushing unit (6) further comprises a T-shaped frame (67), which is fixedly installed between the two sleeve rods (63), and the other end of the T-shaped frame (67) is fixedly connected to the outer wall of the pull rod (65).

4. A fast opening and closing solenoid valve according to claim 2, characterized in that: The pushing unit (6) further comprises an extension rod (66), and the extension rod (66) is slidably connected inside the pull rod (65).

5. A fast opening and closing solenoid valve according to claim 2, characterized in that: The limiting unit (7) comprises a bracket (71) fixedly mounted on the bottom surface of the valve body (1); two plug rods (72) are penetrated through and slidably connected to the side wall of the bracket (71); one end of the two plug rods (72) is fixedly connected to a pull plate (73); the middle outer walls of the two plug rods (72) are fixedly connected to a limiting plate (74); the plug rods (72) are movably plugged into the sliding grooves (64) on the sleeve rods (63) in the two pushing units (6); the outer wall of the plug rod (72) is sleeved with a spring (75); the spring (75) is located between the bracket (71) and the limiting plate (74).

6. A fast opening and closing solenoid valve according to claim 5, characterized in that: The limiting unit (7) also includes a limiting frame (76) fixedly mounted on the bottom surface of the valve body (1); two insertion holes (77) are formed through the side wall of the limiting frame (76); and the insertion rod (72) is movably plugged into the insertion holes (77).

7. A fast opening and closing solenoid valve according to claim 5, characterized in that: The limiting unit (7) also includes two mounting blocks (78) fixedly connected to the side wall of the bracket (71), a hook plate (79) rotatably connected between the two mounting blocks (78), and the hook plate (79) is movably sleeved on the outer wall of the limiting plate (74).

8. A fast opening and closing solenoid valve according to claim 2, characterized in that: The connecting rod (5) comprises a main rod (51) and two auxiliary rods (52) which penetrate the sliding rod (42) and are rotatably connected to the sliding rod (42). Both ends of the main rod (51) are provided with mounting holes (53). One end of the auxiliary rod (52) is fixedly connected to an outer rotating rod (54). The outer rotating rod (54) is rotatably connected in the mounting hole (53) through a bearing. The main rod (51) and the outer rotating rod (54) are respectively slidably connected in the sliding grooves (64) on the sleeve rods (63) of the two pushing units (6).

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