Cooling tower water retaining device

Abstract

The invention discloses a cooling tower water retaining device, comprising a shell, four water retaining plates, all of which are fixedly connected to a rotating shaft one, four outer walls of the shell are provided with connecting ears matching the rotating shaft one, two ends of the rotating shaft one pass through the connecting ears and are fixedly connected with a bevel gear, one outer wall of the shell is provided with two mounting ears, a sliding rod is fixedly connected between the two mounting ears, a sliding block is slidably connected to the sliding rod, a spring one is also sleeved on the sliding rod, the spring one is between the sliding block and the mounting ear on the lower side, the left and right sides of the sliding block are hinged with hinge strips, and the other end of the hinge strip is hinged to the corresponding water retaining plate, teeth are provided at the upper positions of the left and right sides of the sliding block, and a limiting unit for limiting the movement of the sliding block is also provided on the outer wall of the shell, the restriction on the sliding block is released, and under the action of the spring one, the sliding block moves up, and the water retaining plate is opened through the two hinge strips, the limiting unit fixes the sliding block, so that the water retaining plate is fixed, the sliding block is adjusted, and the angle of the water retaining plate is adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of cooling towers, and in particular to a water retaining device for a cooling tower. Background Art

[0002] Cooling tower is a common heat dissipation equipment, which uses the contact between water and air to dissipate the waste heat generated by industry through evaporation. Generally, water baffles are rotatably connected to the four outer walls of the cooling tower. When cleaning, the water baffles are rotated to make the water baffles and the shell form a certain angle, so that the clean water touches the water baffles, flows along the water baffles, and finally falls into the water receiving trough below.

[0003] A Chinese patent with application number CN201821320296.5 discloses a water retaining device for a cooling tower. In order to facilitate the folding of the water retaining plates, a rotating shaft 1 is fixed to each of the four water retaining plates, which are rotatably connected to the upper side of the water receiving trough through a rotating shaft 1 respectively. The water retaining plates and the sides away from the water receiving trough are abutted against the outer wall of the shell. An installation groove is provided on the side of the water retaining plate away from the water receiving trough, a limit plate is provided in the installation groove, a limit groove is provided on the outer wall of the shell, the limit plate is plugged into the limit groove, a connecting groove is provided on the outer wall of the water retaining plate, the connecting groove is connected to the mounting groove, a connecting rod is provided on the side of the water retaining plate facing the connecting groove, and the connecting rod passes through the connecting groove to limit the angle of the water retaining plate.

[0004] The above patent is inconvenient to operate when adjusting and limiting the angle of the water retaining plate. Summary of the invention

[0005] The purpose of the present invention is to provide a cooling tower water retaining device, which has the advantage of being easier to operate.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] The cam is an angular channel formed on the bottom of the cam, and the cam is connected to the bottom of the cam by a toothed plate, wherein the toothed plate is provided with a toothed plate, and the toothed plate is connected to the cam by a toothed plate.

[0008] By adopting the above technical solution, the four water baffles are rotatably connected to the four outer walls of the shell, and the four water baffles can rotate together under the action of the bevel gear. Under the action of spring 1, the sliding block is pushed upward, and then the water baffle is opened through two hinged strips. The sliding block is fixed by the limiting unit, so that the water baffle is fixed. By adjusting the height of the sliding block, the opening angle of the water baffle can be adjusted.

[0009] Preferably, the limiting unit includes two gears, a mounting frame and a limiting assembly for limiting the rotation of the gears, the mounting frame includes a concave part and inwardly bent parts on both sides of the notch, the mounting frame is fixedly connected to the shell, and the sliding block is located between the two bent parts, the two gears are fixedly connected with a rotating shaft 2, the rotating shaft 2 is rotatably connected to the bent part and the concave part, the two gears are respectively matched with the teeth on both sides of the sliding block, one of the rotating shafts 2 exceeds the concave part, and the rotating shaft 2 is fixedly connected with a hand-cranked wheel.

[0010] By adopting the above technical solution, under the action of spring 1, the sliding block is pushed upward, and at the same time drives the two gears to rotate in the opposite direction. After the water baffle is opened to a suitable angle, the limiting component is used to limit the rotation of the gear, thereby fixing the sliding block and the water baffle. When the water baffle needs to be closed, the restriction on the gear is released, and the corresponding gear is rotated in the opposite direction by the hand-cranked wheel to move the sliding block downward.

[0011] Preferably, the limiting assembly includes an adapter block, a rack and an adjusting bolt, the front side surfaces of the two gears extend beyond the front side surface of the sliding block, cylindrical rods are welded and fixed on the left and right sides of the concave part, and the cylindrical rods extend beyond the top surface of the concave part, the adapter block is provided with a socket for matching the two cylindrical rods, and a spring 2 is sleeved on the part of the cylindrical rod below the adapter block, the rack is connected to the bottom surface of the adapter block, and a connecting plate is fixedly connected to the top of the cylindrical rod, and a threaded through hole matching the adjusting bolt is provided on the connecting plate.

[0012] By adopting the above technical solution, the two gears rotate in the same direction. Under the action of the adjusting bolt, the rack moves down and cooperates with the two gears at the same time, so that both gears cannot rotate. Loosen the adjusting bolt, and under the action of spring 2, the rack and gear are separated, and the gear can rotate.

[0013] Preferably, two extension parts are provided on the bottom surface of the adapter block, the rack is located between the two extension parts, the top surface of the rack is in contact with the adapter block, two protruding columns are provided at both ends of the rack, the extension part is provided with a through hole for the protruding column two to pass through, and the protruding column two is sleeved with a spring three, and the spring three is located between the extension part and the rack.

[0014] With the above technical solution, because the two gears happen to rotate during the movement of the sliding block, the gear and the rack may not fit perfectly. There can be a certain amount of sliding between the rack and the adapter block, so that during the process of the rack and the two gears fitting together, the rack can move left and right by a certain amplitude to fit the gears.

[0015] Preferably, a blind hole is provided on the bottom surface of the sliding block, and the upper part of the spring 1 is inserted into the blind hole.

[0016] The above technical solution saves space and makes the structure more compact, while also allowing the bottom of the sliding block and the mounting ears on the lower side to abut against each other.

[0017] Preferably, a blind hole is provided on the bottom surface of the sliding block, and when the bottom of the sliding block contacts the mounting ear on the lower side, the water baffle is closed, and the sliding block and the gear remain in cooperation, and when the top of the sliding block contacts the mounting ear on the upper side, the water baffle opens at the maximum angle, and the sliding block and the gear remain in cooperation.

[0018] By adopting the above technical solution, the sliding block and the two gears always keep matching. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the closed structure of the water retaining plate in the embodiment;

[0020] Figure 2 It is a schematic diagram of the structure of the water retaining plate of the embodiment;

[0021] Figure 3 Schematic diagram of the structure of the limiting unit of the embodiment.

[0022] Figure numerals: 1. shell; 11. connecting ear; 12. mounting ear; 2. water baffle; 21. bevel gear; 3. slide rod; 4. slide block; 41. blind hole; 5. spring one; 6. hinge strip; 7. limiting unit; 71. gear; 72. mounting frame; 721. concave part; 722. bending part; 73. hand wheel; 74. adapter block; 741. extension part; 75. rack; 751. spring three; 76. adjusting bolt; 77. cylindrical rod; 771. spring two; 78. connecting plate. DETAILED DESCRIPTION

[0023] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0024] like Figures 1 to 3As shown, a cooling tower water retaining device includes a shell 1 and four water retaining plates 2. The four water retaining plates 2 are fixedly connected to a rotating shaft 1. The lower sides of the four outer walls of the shell 1 are provided with connecting ears 11 that match the rotating shaft 1. The connecting ears 11 pass through both ends of the rotating shaft 1, and the protruding part of the rotating shaft 1 is fixedly connected with a bevel gear 7121. In this way, the four water retaining plates 2 are rotatably connected to the four outer walls of the shell 1, and the four water retaining plates 2 can rotate together under the action of the bevel gear 7121. A circle of water receiving troughs is provided at the bottom of the shell 1, and the water receiving troughs are below the water retaining plates 2 (the water receiving troughs are not shown in the figure for convenience).

[0025] Two mounting ears 12 are provided on an outer wall of the shell 1, and a sliding rod 3 is fixedly connected between the two mounting ears 12. A sliding block 4 is slidably connected to the sliding rod 3. A through hole matching the sliding rod 3 is provided on the sliding block 4, and the rear side surface of the sliding block 4 is in contact with the corresponding outer wall of the shell 1, thereby limiting the rotation of the sliding block 4 so that the sliding block 4 can only move up and down along the sliding rod 3. A spring 5 is also sleeved on the sliding rod 3, and the spring 5 is located between the sliding block 4 and the mounting ear 12 on the lower side. In order to save space and make the structure more compact, a blind hole 41 is provided on the bottom surface of the sliding block 4, and the upper part of the spring 5 is inserted into the blind hole 41.

[0026] The lower positions of the left and right sides of the sliding block 4 are hinged with hinge strips 6, and the other ends of the hinge strips 6 are hinged to the corresponding water baffles 2. The upper positions of the left and right sides of the sliding block 4 are provided with teeth. The outer wall of the shell 1 is also provided with a limiting unit 7 that limits the movement of the sliding block 4. In this way, under the action of the spring 1 5, the sliding block 4 is pushed upward, and then the water baffle 2 is opened through the two hinge strips 6. The sliding block 4 is fixed by the limiting unit 7, so that the water baffle 2 is fixed. By adjusting the height of the sliding block 4, the opening angle of the water baffle 2 can be adjusted.

[0027] The limiting unit 7 includes two gears 71, a mounting frame 72 and a limiting assembly that limits the rotation of the gear 71. The mounting frame 72 includes a concave portion 721 and bent portions 722 on both sides of the notch. The mounting frame 72 is fixedly connected to the shell 1, and the sliding block 4 is located between the two bent portions 722. The two gears 71 are fixedly connected to a rotating shaft 2, and the rotating shaft 2 is rotatably connected to the bent portion 722 and the concave portion 721, and the two gears 71 are respectively matched with the teeth on both sides of the sliding block 4, so that under the action of the spring 1 5, the sliding block 4 is pushed upward and the two gears 71 are driven to rotate in the opposite direction at the same time. The rotating shaft 2 of one of the two gears 71 exceeds the concave portion 721, and the rotating shaft 2 is fixedly connected to a hand-cranked wheel 73. When the water baffle 2 needs to be closed, the corresponding gear 71 is rotated in the opposite direction by the hand-cranked wheel 73 to move the sliding block 4 downward.

[0028] And the position of the gear 71 is controlled. When the bottom of the sliding block 4 contacts the mounting ear 12 on the lower side, the water baffle 2 is closed, and the sliding block 4 and the gear 71 remain in cooperation. When the top of the sliding block 4 contacts the mounting ear 12 on the upper side, the water baffle 2 opens at the maximum angle, and the sliding block 4 and the gear 71 remain in cooperation, that is, the sliding block 4 always maintains cooperation with the gear 71.

[0029] The limiting assembly includes an adapter block 74, a rack 75 and an adjusting bolt 76. The front side surfaces of the two gears 71 extend beyond the front side surface of the sliding block 4. Cylindrical rods 77 are welded and fixed on the left and right sides of the concave portion 721, and the cylindrical rods 77 extend beyond the top surface of the concave portion 721. The adapter block 74 is provided with a socket for matching the two cylindrical rods 77, and the portion of the cylindrical rod 77 below the adapter block 74 is sleeved with a spring 2 771. The rack 75 is connected to the bottom surface of the adapter block 74, and a connecting plate is fixedly connected to the top of the cylindrical rod 77. The connecting plate is provided with a threaded through hole that matches the adjusting bolt 76. Under the action of the spring 2 771, the adapter block 74 is lifted up, and the rack 75 and the two gears 71 are separated without affecting the rotation of the two gears 71. When it is necessary to limit the movement of the sliding block 4, the adjusting bolt 76 is rotated, the adapter block 74 moves downward, and the rack 75 and the two gears 71 are matched at the same time.

[0030] The two ends of the rack 75 are provided with a raised column 2, and the extended portion 741 is provided with a through hole for the raised column 2 to pass through, that is, a certain amount of sliding can be allowed between the rack 75 and the adapter block 74, and the raised column 2 is sleeved with a spring 3 751, and the spring 3 751 is located between the extended portion 741 and the rack 75. In this way, during the cooperation between the rack 75 and the two gears 71, the rack 75 can move left and right by a certain amplitude, so there is no need to adjust the gear 71.

[0031] The working principle of the present invention is briefly described. Initially, the bottom of the sliding block 4 and the mounting ear 12 on the lower side are in conflict, the water baffle 2 is in a vertical state, and the rack 75 and the two gears 71 cooperate. When the water baffle 2 needs to be opened, hold the hand wheel 73, loosen the adjusting bolt 76, the rack 75 leaves the two gears 71, and slightly loosen the hand wheel 73 so that it can rotate. Under the action of spring 15, the sliding block 4 moves up to open the water baffle 2. When the water baffle 2 is opened to a suitable angle, hold the hand wheel 73, tighten the adjusting bolt 76, so that the rack 75 and the two gears 71 cooperate. When closing the water baffle 2, hold the hand wheel 73, loosen the adjusting bolt 76, and then rotate the hand wheel 73 in the opposite direction to move the slider down and reset, and then tighten the adjusting bolt 76.

Claims

1. A cooling tower water retaining device, comprising a shell (1), four water retaining plates (2), wherein the four water retaining plates (2) are rotatably connected to four outer walls of the shell (1), a circle of water receiving grooves is provided at the bottom of the shell (1), and the water receiving grooves are below the water retaining plates (2), characterized in that: The four water baffles (2) are all fixedly connected to a rotating shaft 1, and the lower sides of the four outer walls of the housing (1) are all provided with connecting ears (11) matching the rotating shaft 1, and the two ends of the rotating shaft 1 pass through the connecting ears (11), and the protruding part of the rotating shaft 1 is fixedly connected to a bevel gear (21), and two mounting ears (12) are provided on an outer wall of the housing (1), and a sliding rod (3) is fixedly connected between the two mounting ears (12), and a sliding block (4) is slidably connected to the sliding rod (3), and a sliding rod (3) is also sleeved on the sliding rod (3). A spring (5) is connected, and the spring (5) is located between the sliding block (4) and the mounting ear (12) at the lower side. The rear side of the sliding block (4) is in contact with the outer wall of the corresponding shell (1). The lower sides of the left and right sides of the sliding block (4) are both hinged with hinge bars (6), and the other end of the hinge bar (6) is hinged with the corresponding water baffle (2). The upper sides of the left and right sides of the sliding block (4) are both provided with teeth. The outer wall of the shell (1) is also provided with a limiting unit (7) for limiting the movement of the sliding block (4); The limiting unit (7) comprises two gears (71), a mounting frame (72) and a limiting assembly for limiting the rotation of the gears (71); the mounting frame (72) comprises a concave portion (721) and inwardly bent portions (722) on both sides of the notch; the mounting frame (72) and the housing (1) are fixedly connected, and the sliding block (4) is located between the two bent portions (722); the two gears (71) are fixedly connected with a second rotating shaft, and the second rotating shaft is rotationally connected to the bent portion (722) and the concave portion (721); the two gears (71) respectively cooperate with teeth on both sides of the sliding block (4); one of the second rotating shafts exceeds the concave portion (721), and the protruding portion of the second rotating shaft is fixedly connected with a hand-cranked wheel (73); The limiting assembly comprises an adapter block (74), a rack (75) and an adjusting bolt (76); the front side surfaces of the two gears (71) extend beyond the front side surface of the sliding block (4); cylindrical rods (77) are welded and fixed to the left and right sides of the concave portion (721), and the cylindrical rods (77) extend beyond the top surface of the concave portion (721); the adapter block (74) is provided with a plug hole for matching the two cylindrical rods (77); and a spring 2 (771) is sleeved on the part of the cylindrical rod (77) below the adapter block (74); the rack (75) is connected to the bottom surface of the adapter block (74); a connecting plate is fixedly connected to the top of the cylindrical rod (77); and a threaded through hole for matching the adjusting bolt (76) is provided on the connecting plate; The bottom surface of the adapter block (74) is provided with two extension parts (741), the rack (75) is located between the two extension parts (741), the top surface of the rack (75) is in contact with the adapter block (74), two ends of the rack (75) are provided with protruding columns 2, the extension part (741) is provided with a through hole for the protruding column 2 to pass through, and the protruding column 2 is sleeved with a spring 3 (751), and the spring 3 (751) is located between the extension part (741) and the rack (75); The bottom surface of the sliding block (4) is provided with a blind hole (41), and the upper part of the spring 1 (5) is inserted into the blind hole (41).

2. A cooling tower water retaining device according to claim 1, characterized in that: When the bottom of the sliding block (4) contacts the mounting ear (12) on the lower side, the water baffle (2) is closed, and the sliding block (4) and the gear (71) remain in cooperation; when the top of the sliding block (4) contacts the mounting ear (12) on the upper side, the water baffle (2) opens at the maximum angle, and the sliding block (4) and the gear (71) remain in cooperation.

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