Closed cooling tower

Abstract

The utility model relates to a closed cooling tower which comprises a tower body and a crawling ladder, a plurality of U-shaped protective frames are evenly distributed on the crawling ladder in the vertical direction at intervals, the two ends of each U-shaped protective frame are installed on the left side and the right side of the crawling ladder in a hinged mode, a driving device is further arranged on the crawling ladder, and the driving device can drive all the U-shaped protective frames to swing. The U-shaped protection frame is in a horizontal opening state, or the U-shaped protection frame swings downwards to be in an inclined state; the U-shaped protective frame is arranged on the ladder stand, so that when a worker climbs the ladder stand, the U-shaped protective frame can play a role in protecting the worker; besides, the U-shaped protection frame can swing up and down through the driving device, so that when the crawling ladder is not used, the U-shaped protection frame can be driven by the driving device to swing downwards to be in an inclined state, and therefore, the U-shaped protection frame can play a blocking role, and the situation that people except the working personnel climb on the crawling ladder to cause danger is avoided; therefore, the use safety of the crawling ladder is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling tower technical field, especially a closed cooling tower. BACKGROUND

[0002] Cooling tower is a kind of device that discharges to atmosphere from system heat absorption, and uses water as circulating coolant to reduce water temperature again.Present cooling tower can be roughly divided into natural draft cooling tower, mechanical draft cooling tower, hybrid draft cooling tower and closed cooling tower etc., and cooling tower is mainly applied in air conditioning cooling system.

[0003] Since closed cooling tower is larger, when closed cooling tower is overhauled, it needs to be climbed to the top of closed cooling tower by ladder, and the ladder on traditional closed cooling tower does not have protection function, so that staff has security risk when climbing closed cooling tower, in addition, the ladder also does not have blocking structure, so that anyone can climb up, and there is certain security risk. UTILITY MODEL CONTENT

[0004] The utility model aims at at least one of the problems existing in the prior art to some extent, and therefore the utility model provides a closed cooling tower.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A closed cooling tower, including tower body and the ladder that is arranged on the one side of tower body, the U-shaped guard frame is uniformly distributed and is spaced apart in vertical direction on the ladder, and the two ends of the U-shaped guard frame are hingedly installed on the left side and the right side of the ladder, and a driving device is further arranged on the ladder, the driving device can drive all U-shaped guard frames to swing, so that the U-shaped guard frame is in horizontal open state, or the U-shaped guard frame is swung downward and is in inclined state.

[0007] In some embodiments, the ladder includes left and right spaced apart vertical rods and a plurality of horizontal rods vertically spaced apart between the two vertical rods.

[0008] In some embodiments, the two ends of the U-shaped guard frame are provided with rotating shafts, and the two rotating shafts are rotatably installed on the two vertical rods.

[0009] In some embodiments, the driving device includes a rack that slides up and down on the outside of the vertical rod, and a gear that can engage with the rack is arranged on the rotating shaft.

[0010] In some embodiments, a fixed plate is arranged at the lower end of the rack, a pin is movably arranged on the fixed plate, positioning holes are spaced apart up and down on the outside of the vertical rod, and one end of the pin can be inserted into the positioning hole.

[0011] In some embodiments, a vertical slide rail is provided on the outer side of the upright, and the rack slides within the vertical slide rail.

[0012] In some embodiments, a support rod is hinged to the fixed plate, a support base is provided below the ladder, and a support groove is provided on the support base, so that the lower end of the support rod can be supported in the support groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By installing a U-shaped safety frame on the ladder, the U-shaped safety frame can protect the workers when they climb the ladder;

[0015] 2. In addition, the U-shaped safety frame can be swung up and down by a drive device. Therefore, when the ladder is not in use, the drive device can drive the U-shaped safety frame to swing downward and tilt. In this way, the U-shaped safety frame can act as a barrier to prevent people other than workers from climbing the ladder and causing danger, thus greatly improving the safety of ladder use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the U-shaped protective frame of this utility model in a horizontally unfolded state;

[0017] Figure 2 This is a schematic diagram of the U-shaped protective frame of this utility model when it swings downwards and is in an inclined state;

[0018] Figure 3 This utility model Figure 1 Enlarged view of point A;

[0019] Figure 4 This utility model Figure 1 Enlarged diagram of point B. Detailed Implementation

[0020] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0021] like Figures 1-4The closed cooling tower comprises a tower body 1 and a ladder 2 arranged on one side of the tower body 1, a plurality of U-shaped protective frames 3 are uniformly and vertically arranged on the ladder 2, both ends of the U-shaped protective frame 3 are hingedly arranged on the left and right sides of the ladder 2, and a driving device is arranged on the ladder 2, the driving device can drive all the U-shaped protective frames 3 to swing, so that the U-shaped protective frame 3 is in a horizontal open state or the U-shaped protective frame 3 is swung downward to be in an inclined state.

[0022] According to the above structure, the U-shaped protective frame 3 is arranged on the ladder 2, so that when the staff climbs the ladder 2, the U-shaped protective frame 3 can protect the staff.

[0023] In addition, the U-shaped protective frame 3 can be swung up and down by the driving device, so that when the ladder is not used, the U-shaped protective frame 3 can be swung downward to be in an inclined state by the driving device, so that the U-shaped protective frame 3 can play a blocking role, avoiding people other than the staff to climb the ladder 2 and causing danger, thereby greatly improving the safety of the ladder use.

[0024] Further, the ladder 2 comprises left and right spaced vertical rods 21 and a plurality of horizontal rods 22 vertically arranged between the two vertical rods 21.

[0025] Referring to Figures 1-3 As shown, both ends of the U-shaped protective frame 3 are provided with rotating shafts 31, and the two rotating shafts 31 are rotatably arranged on the two vertical rods 21.

[0026] Further, the driving device comprises a rack 41 sliding up and down on the outside of the vertical rod 21, and a gear 42 arranged on the rotating shaft 31 and capable of engaging with the rack 41; in operation, the rack 41 slides up and down to engage with the gear 42, thereby driving the gear 42 and the rotating shaft 31 to rotate, and further driving the U-shaped protective frame 3 to swing up and down.

[0027] Referring to Figure 4 As shown, a fixed plate 51 is arranged at the lower end of the rack 41, a pin 52 is movably arranged on the fixed plate 51, and positioning holes 53 are arranged on the outside of the vertical rod 21 in an up and down manner, and one end of the pin 52 can be inserted into the positioning hole 53.

[0028] It should be noted that when the pin 52 is inserted into the lowermost positioning hole 53, the U-shaped protective frame 3 is in a horizontal open state (as shown in Figure 1 At this time, the ladder climber can be protected; when the rack 41 slides upward and the pin 52 is inserted into the uppermost positioning hole 53, the U-shaped protective frame 3 is swung downward to be in an inclined state (as shown in Figure 2 At this time, the U-shaped protective frame 3 can play a blocking role to avoid people to climb the ladder 2.

[0029] In order to improve the stability of the rack 41 sliding up and down, a vertical slide rail 61 is arranged on the outer side of the vertical rod 21, and the rack 41 slides in the vertical slide rail 61.

[0030] Referring to FIG. 7, a support rod 71 is hinged on the fixed plate 51, a support base 72 is arranged below the ladder 2, a support groove 73 is arranged on the support base 72, and the lower end of the support rod 71 is supported in the support groove 73. Figure 1 Figure 2 Figure 4 The support rod 71 is arranged, which can support the rack 41 and the ladder 2, and improve the strength of the whole ladder 2.

[0031] The basic principle and main features of the present application and the advantages of the present application are shown and described above in combination with the drawings, and the skilled in the art should understand that the present application is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.​​

Claims

1. A closed-loop cooling tower, comprising a tower body (1) and a ladder (2) disposed on one side of the tower body (1), characterized in that: Several U-shaped protective frames (3) are evenly distributed along the vertical direction on the ladder (2). The two ends of the U-shaped protective frames (3) are hinged to the left and right sides of the ladder (2). A driving device is also provided on the ladder (2). The driving device can drive all the U-shaped protective frames (3) to swing so that the U-shaped protective frames (3) are in a horizontally open state, or so that the U-shaped protective frames (3) swing downward in an inclined state.

2. A closed-loop cooling tower according to claim 1, characterized in that: The ladder (2) includes uprights (21) spaced apart on the left and right and several horizontal bars (22) spaced apart vertically between the two uprights (21).

3. A closed-loop cooling tower according to claim 2, characterized in that: The U-shaped protective frame (3) is provided with a rotating shaft (31) at both ends, and the two rotating shafts (31) are respectively rotatably installed on the two uprights (21).

4. A closed-loop cooling tower according to claim 3, characterized in that: The drive device includes a rack (41) that slides up and down on the outside of the upright (21), and a gear (42) that can mesh with the rack (41) is provided on the rotating shaft (31).

5. A closed-loop cooling tower according to claim 4, characterized in that: A fixing plate (51) is provided at the lower end of the rack (41), and a pin (52) is movably inserted through the fixing plate (51). Positioning holes (53) are spaced vertically on the outer side of the upright (21), and one end of the pin (52) can be inserted into the positioning hole (53).

6. A closed-loop cooling tower according to claim 4, characterized in that: A vertical slide rail (61) is provided on the outside of the upright (21), and the rack (41) slides within the vertical slide rail (61).

7. A closed-loop cooling tower according to claim 5, characterized in that: A support rod (71) is hinged to the fixed plate (51), and a support seat (72) is provided below the ladder (2). A support groove (73) is provided on the support seat (72), and the lower end of the support rod (71) can be supported in the support groove (73).

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