Low-pressure pipeline water outlet floating ball valve control device

Abstract

The utility model relates to the technical field of floating ball valves, and discloses a low-pressure pipeline water outlet floating ball valve control device which comprises a valve body, the top of the valve body is fixedly connected with a cylindrical shell, the outer wall of the cylindrical shell is fixedly connected with an external water pipe, the external water pipe is communicated with the cylindrical shell, the top of the cylindrical shell is movably connected with a cover plate, and the outer wall of the cylindrical shell is communicated with the cover plate. The top of the cover plate is fixedly connected with a second threaded ring. According to the low-pressure pipeline water outlet floating ball valve control device, through cooperative use of a ball body, a sliding rod, a gear, a half-toothed plate and a sliding groove, when the sliding rod drives the ball body to ascend, the half-toothed plate can be driven to descend through the gear, so that the half-toothed plate blocks a first circular groove in the right side of the valve body; at the moment, water flow can enter the cylindrical shell through a second circular groove and a connecting ring, the water flow can continuously flow to a place needing water supply through an external water pipe, at the moment, the connecting pipe can be directly replaced, and therefore the effect that the connecting pipe can be directly replaced without closing a water source is achieved.

Description

Technical Field

[0001] This utility model relates to the field of float valve technology, specifically a float valve control device for a low-pressure pipeline outlet. Background Technology

[0002] A float valve regulates the liquid supply by controlling the liquid level. Flooded evaporators require a constant liquid level, making float expansion valves generally suitable. The float valve works by using the rise and fall of a float in the float chamber, influenced by the liquid level, to control the opening and closing of the valve. The float chamber is located on one side of the flooded evaporator and connected to the evaporator via a balancing pipe, ensuring consistent liquid levels in both. When the liquid level in the evaporator drops, the liquid level in the float chamber also drops, causing the float to descend. This leverage action increases the valve opening, thus increasing the liquid supply.

[0003] However, when using existing float valves, the water supply needs to be shut off before the valve body can be maintained or the connecting pipe can be replaced. When the water supply is shut off, the water flow cannot be continuously delivered through the valve body, which affects the water delivery efficiency. Utility Model Content

[0004] In view of the problem that the water flow cannot be continuously delivered through the valve body when the water source is shut off, resulting in insufficient water delivery efficiency, this utility model provides a low-pressure pipeline outlet float valve control device, which has the advantage of allowing direct replacement of the connecting pipe without shutting off the water source.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-pressure pipeline outlet float valve control device, comprising a valve body, a cylindrical shell fixedly connected to the top of the valve body, an external water pipe fixedly connected to the outer wall of the cylindrical shell, the external water pipe communicating with the cylindrical shell, a cover plate movably connected to the top of the cylindrical shell, a second threaded ring fixedly connected to the top of the cover plate, the second threaded ring penetrating to the bottom of the cover plate, a telescopic rod fixedly installed at the bottom of the second threaded ring, a threaded rod threadedly connected inside the second threaded ring, a knob fixedly installed at the top of the threaded rod, one end of the threaded rod away from the knob penetrating into the interior of the telescopic rod, a push plate fixedly connected to one end of the threaded rod inside the telescopic rod, a slide rod slidably connected inside the telescopic rod, and a slide plate fixedly installed at the top of the slide rod.

[0006] Preferably, the slide rod is slidably connected inside the telescopic rod via a sliding plate, and a spring is sleeved on the outer surface of the slide rod. The two ends of the spring are respectively fixedly connected to the bottom of the inner wall of the telescopic rod and the bottom of the sliding plate. The spring can provide an upward rebound force when the ball needs to rise.

[0007] Preferably, a first circular groove is provided at both the left and right ends of the valve body, a second circular groove is provided at the top of the valve body, and a sliding groove is provided at the top right end of the valve body. The sliding groove extends to the bottom of the inner wall of the valve body and is connected to the first circular groove on the right side of the valve body. A first threaded ring is fixedly installed at both the left and right ends of the valve body at the positions corresponding to the two first circular grooves to facilitate the installation of the connecting pipe.

[0008] Preferably, each of the two first threaded rings is threaded with a connecting pipe on opposite sides, and each of the two connecting pipes is fixedly connected with a threaded joint at one end near the two first threaded rings, which facilitates the installation and disassembly of the connecting pipes.

[0009] Preferably, the connecting pipe is threaded to the left and right ends of the valve body through a first threaded ring and a threaded joint, and a connecting ring is fixedly connected to the top of the valve body at the position of the second circular groove, so as to facilitate the ball to seal the inside of the valve body.

[0010] Preferably, a ball is slidably connected inside the connecting ring, and the top of the ball is fixedly connected to the bottom of the slide rod to facilitate the raising and lowering of the ball.

[0011] Preferably, both the telescopic rod and the sliding rod are disposed inside the cylindrical shell, and a semi-toothed plate is disposed inside the cylindrical shell. The semi-toothed plate is slidably connected inside the sliding groove, which facilitates the semi-toothed plate to seal the inside of the valve body.

[0012] Preferably, the inner wall of the cylindrical shell is rotatably connected to a rotating shaft, the outer surface of the rotating shaft is fixedly connected to a gear, the outer side of the slide rod is provided with several tooth grooves, the gear is located between the slide rod and the half tooth plate, the gear meshes with the slide rod through the tooth grooves, and the gear is also meshed with the half tooth plate.

[0013] Beneficial effects:

[0014] This low-pressure pipeline outlet float valve control device uses a ball, slide rod, gear, half-tooth plate, and slide groove in cooperation. When the slide rod drives the ball to rise, the gear drives the half-tooth plate to fall, causing the half-tooth plate to block the first circular groove on the right side of the valve body. At this time, the water flow can enter the cylindrical shell through the second circular groove and the connecting ring, allowing the water flow to continue to flow to the place where water needs to be supplied through the external water pipe. At this time, the connecting pipe can be replaced directly, thus achieving the effect of replacing the connecting pipe without shutting off the water supply. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a low-pressure pipeline outlet float valve control device according to the present invention;

[0016] Figure 2This is a schematic diagram of the internal structure of a low-pressure pipeline outlet float valve control device according to the present invention;

[0017] Figure 3 This is a schematic diagram of the valve body structure of a low-pressure pipeline outlet float valve control device according to the present invention;

[0018] Figure 4 This is a schematic diagram of the lifting structure of a low-pressure pipeline outlet float valve control device according to the present invention;

[0019] Figure 5 This is a schematic diagram of the connector structure of a low-pressure pipeline outlet float valve control device according to the present invention.

[0020] In the diagram: 1. Valve body; 101. First circular groove; 102. Second circular groove; 103. Slide groove; 104. First threaded ring; 105. Connecting pipe; 106. Threaded joint; 107. Connecting ring; 2. Cylindrical shell; 201. External water pipe; 3. Cover plate; 301. Second threaded ring; 302. Telescopic rod; 303. Threaded rod; 304. Knob; 305. Push plate; 306. Slide rod; 307. Sliding plate; 308. Spring; 4. Ball; 5. Half-tooth plate; 6. Gear; 7. Rotating shaft. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5A low-pressure pipeline outlet float valve control device includes a valve body 1. A cylindrical shell 2 is fixedly connected to the top of the valve body 1. An external water pipe 201 is fixedly connected to the outer wall of the cylindrical shell 2 and communicates with the cylindrical shell 2. A cover plate 3 is movably connected to the top of the cylindrical shell 2. A second threaded ring 301 is fixedly connected to the top of the cover plate 3 and extends to the bottom of the cover plate 3. A telescopic rod 302 is fixedly installed at the bottom of the second threaded ring 301. A threaded rod 303 is threadedly connected inside the second threaded ring 301. A knob 304 is fixedly installed at the top of the threaded rod 303. The end of the threaded rod 303 away from the knob 304 extends into the interior of the telescopic rod 302. The threaded rod 303 is located within the telescopic rod 302. A push plate 305 is fixedly connected to one end of the telescopic rod 302. A slide rod 306 is slidably connected inside the telescopic rod 302. A slide plate 307 is fixedly installed on the top of the slide rod 306. The slide rod 306 is slidably connected to the inside of the telescopic rod 302 through the slide plate 307. A spring 308 is sleeved on the outer surface of the slide rod 306. The two ends of the spring 308 are fixedly connected to the bottom of the inner wall of the telescopic rod 302 and the bottom of the slide plate 307, respectively. The spring 308 can provide an upward rebound force when the ball 4 needs to rise. A first circular groove 101 is opened at both the left and right ends of the valve body 1. A second circular groove 102 is opened at the top of the valve body 1. A slide groove 103 is opened at the top right end of the valve body 1. The slide groove 103 extends to the bottom side of the inner wall of the valve body 1.

[0023] The slide groove 103 is connected to the first circular groove 101 opened on the right side of the valve body 1. The left and right ends of the valve body 1 are fixedly installed with first threaded rings 104 at the positions of the two first circular grooves 101, which facilitates the installation of the connecting pipe 105. The two first threaded rings 104 are threaded to the opposite sides of the connecting pipe 105. The two connecting pipes 105 are fixedly connected to the ends of the two first threaded rings 104 at the ends of the two connecting pipes 105, which facilitates the installation and disassembly of the connecting pipe 105. The connecting pipe 105 is threaded to the left and right ends of the valve body 1 through the first threaded rings 104 and the threaded joints 106. The top of the valve body 1 is fixedly connected to the second circular groove 102, which facilitates the ball 4 to seal the inside of the valve body 1. The ball 4 is slidably connected inside the connecting ring 107.

[0024] The top of the ball 4 is fixedly connected to the bottom of the slide rod 306 to facilitate the lifting and lowering of the ball 4. The telescopic rod 302 and the slide rod 306 are both set inside the cylindrical shell 2. The cylindrical shell 2 is provided with a semi-toothed plate 5, which is slidably connected inside the slide groove 103 to facilitate the semi-toothed plate 5 to seal the inside of the valve body 1. The inner wall of the cylindrical shell 2 is rotatably connected to a rotating shaft 7, and a gear 6 is fixedly connected to the outer surface of the rotating shaft 7. Several toothed grooves are opened on the outside of the slide rod 306. The gear 6 is located between the slide rod 306 and the semi-toothed plate 5. The gear 6 meshes with the slide rod 306 through the toothed grooves, and the gear 6 is also meshed with the semi-toothed plate 5.

[0025] Working principle: First, the operator rotates the knob 304 to drive the threaded rod 303 to rotate inside the second threaded ring 301, so that the threaded rod 303 can move down inside the telescopic rod 302. At this time, the threaded rod 303 pushes the sliding plate 307 down through the push plate 305. The sliding plate 307 drives the sliding rod 306 and the ball 4 to move down, sealing the connecting ring 107. The spring 308 contracts under the compression of the sliding plate 307. When the sliding rod 306 moves down, it drives the gear 6 and the rotating shaft 7 to rotate inside the cylindrical shell 2. When the gear 6 rotates, it drives the half-tooth plate 5 to slide upward inside the sliding groove 103, so that the inside of the valve body 1 is not blocked. Then, the connecting pipe 105 and the valve body 1 are installed through the threaded joint 106 on the outside of the connecting pipe 105 and the first threaded ring 104.

[0026] When it is necessary to replace the connecting pipe 105 on the right side of the valve body 1, first connect the external water pipe 201 to the water supply point. Then, rotate the knob 304 in the opposite direction, causing the threaded rod 303 to drive the push plate 305 to rise inside the telescopic rod 302. Since the sliding plate 307 is no longer squeezed by the push plate 305, the spring 308 can release its elasticity to drive the sliding plate 307, the sliding rod 306, and the ball 4 to move upward. At the same time as the sliding rod 306 moves upward, it will drive the gear 6 to rotate. The rotation of the gear 6 will drive the half-tooth plate 5 to slide downward inside the sliding groove 103 to block the inside of the valve body 1. At this time, the ball 4 rises and no longer blocks the connecting ring 107. Since the inside of the valve body 1 is blocked, the water will enter the cylindrical shell 2 through the second circular groove 102 and the connecting ring 107, and continue to flow through the external water pipe 201 installed outside the cylindrical shell 2. At this time, the connecting pipe 105 on the right side of the valve body 1 can be removed and replaced for user convenience.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A control device for a float valve at the outlet of a low-pressure pipeline, comprising a valve body (1), characterized in that: A cylindrical shell (2) is fixedly connected to the top of the valve body (1). An external water pipe (201) is fixedly connected to the outer wall of the cylindrical shell (2). The external water pipe (201) is connected to the cylindrical shell (2). A cover plate (3) is movably connected to the top of the cylindrical shell (2). A second threaded ring (301) is fixedly connected to the top of the cover plate (3). The second threaded ring (301) extends to the bottom of the cover plate (3). A telescopic rod (302) is fixedly installed at the bottom of the second threaded ring (301). The threaded ring (301) is internally threaded with a threaded rod (303), and a knob (304) is fixedly installed on the top of the threaded rod (303). The end of the threaded rod (303) away from the knob (304) extends into the interior of the telescopic rod (302). A push plate (305) is fixedly connected to the end of the threaded rod (303) inside the telescopic rod (302). A slide rod (306) is slidably connected inside the telescopic rod (302), and a slide plate (307) is fixedly installed on the top of the slide rod (306). A ball (4) is slidably connected inside the connecting ring (107), and the top of the ball (4) is fixedly connected to the bottom of the slide rod (306); The telescopic rod (302) and the slide rod (306) are both located inside the cylindrical shell (2). The cylindrical shell (2) is provided with a semi-toothed plate (5), which is slidably connected to the inside of the slide groove (103). The inner wall of the cylindrical shell (2) is rotatably connected to a rotating shaft (7), and a gear (6) is fixedly connected to the outer surface of the rotating shaft (7). The slide rod (306) has several tooth grooves on its outer side. The gear (6) is located between the slide rod (306) and the half-tooth plate (5). The gear (6) meshes with the slide rod (306) through the tooth grooves, and the gear (6) is also meshed with the half-tooth plate (5).

2. The low-pressure pipeline outlet float valve control device according to claim 1, characterized in that: The slide rod (306) is slidably connected to the inside of the telescopic rod (302) via the sliding plate (307). A spring (308) is sleeved on the outer surface of the slide rod (306). The two ends of the spring (308) are respectively fixedly connected to the bottom of the inner wall of the telescopic rod (302) and the bottom of the sliding plate (307).

3. The low-pressure pipeline outlet float valve control device according to claim 1, characterized in that: The valve body (1) has a first circular groove (101) at both the left and right ends, a second circular groove (102) at the top of the valve body (1), a sliding groove (103) at the top right end of the valve body (1), the sliding groove (103) extends to the bottom of the inner wall of the valve body (1), the sliding groove (103) is connected to the first circular groove (101) on the right side of the valve body (1), and a first threaded ring (104) is fixedly installed at both the left and right ends of the valve body (1) corresponding to the positions of the two first circular grooves (101).

4. The low-pressure pipeline outlet float valve control device according to claim 3, characterized in that: The two first threaded rings (104) are threaded to each other on opposite sides by connecting pipes (105), and the two connecting pipes (105) are fixedly connected to one end near the two first threaded rings (104) by threaded joints (106).

5. A low-pressure pipeline outlet float valve control device according to claim 4, characterized in that: The connecting pipe (105) is threaded to the left and right ends of the valve body (1) through the first threaded ring (104) and the threaded joint (106). The valve body (1) is fixedly connected to the connecting ring (107) at the position of the second circular groove (102) on the top.

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