Counterweight device of elevator

Abstract

The utility model discloses an elevator counterweight device which comprises an elevator body and a counterweight box, the bottom of the counterweight box is fixedly connected to the surface of a supporting table, the side face of the counterweight box is fixedly connected to the surface of the elevator body, a plurality of counterweight units are arranged in the counterweight box, and the upper surface of each counterweight unit is fixedly connected with two first protruding columns. Two limiting grooves are formed in the lower surface of the balance weight unit, a plurality of second protruding columns are fixedly connected to the inner bottom of the balance weight box, the first protruding columns and the second protruding columns can be matched with the limiting grooves, finger grooves are formed in the two sides of the balance weight unit, and a waterproof cover plate is arranged at the upper end of the balance weight box. By arranging the weight box and the waterproof cover plate, the multiple weight units can be protected, the weight units are effectively prevented from being corroded by wind and sunlight, the service life of the weight units is greatly prolonged, compared with an integrated weight balancing block structure, the weight units are convenient to mount and dismount, and convenience is provided for a user.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting counterweights, in particular to a lifting machine counterweight device. Background Technique

[0002] A lifting machine is a mechanical device widely used in construction, aerial work, cargo transportation and other fields. According to the given knowledge, lifting machines can be divided into various types such as construction lifting machines, hydraulic lifting machines, electric lifting machines, manual lifting machines, etc. Construction lifting machines are mainly used for the vertical transportation of personnel and materials in construction, with multiple speed options and slow driving functions, and can adapt to different construction environments. The working principle of a lifting machine is mainly to use a hydraulic cylinder, an electric motor or a manual pump station as a driving force to lift or lower the platform. To ensure safe operation, a lifting machine should be equipped with safety devices such as an overload detection device, a falling safety device, a loose rope prevention device and an emergency stop switch, and should be maintained and inspected regularly.

[0003] At present, when the existing straight-arm lifting machine is working, in order to improve the safety of the platform and prevent rollover, counterweights are mostly installed on both sides of the lifting machine. However, the existing counterweights are often exposed to the outside, and are easily corroded after being exposed to wind, sun and rain, thus greatly reducing their service life; moreover, most counterweights are large and integral structures, which are not convenient for disassembly and installation, so improvement is needed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lifting machine counterweight device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a lifting machine counterweight device, including a lifting machine body and a counterweight box. Both sides of the lifting machine body are fixedly connected with support platforms. The bottom of the counterweight box is fixedly connected to the surface of the support platform, the side surface of the counterweight box is fixedly connected to the surface of the lifting machine body. A plurality of counterweight units are arranged inside the counterweight box. Two first protruding columns are fixedly connected to the upper surface of the counterweight unit, two limiting grooves are opened on the lower surface of the counterweight unit, a plurality of second protruding columns are fixedly connected to the inner bottom of the counterweight box, and both the first protruding column and the second protruding column can fit with the limiting groove. Finger grooves are opened on both sides of the counterweight unit, and a waterproof cover plate is arranged at the upper end of the counterweight box.

[0006] Preferably, a fixing bolt is threadedly connected to the surface of the waterproof cover plate, and a threaded hole is opened on the upper surface of the counterweight box. The fixing bolt and the threaded hole form a threaded connection.

[0007] Preferably, two handles are fixedly connected to the upper surface of the waterproof cover plate, and the two handles are symmetrically distributed left and right.

[0008] Preferably, a plurality of cooling fans are provided on one side of the counterweight box close to the elevator body, and a plurality of cooling strip holes are formed on the side of the counterweight box away from the elevator body.

[0009] Preferably, a plurality of central rods are fixedly connected to the inner bottom of the counterweight box. A baffle is sleeved on the outer surface of the upper end of the central rod, and a fixing nut is threadedly connected to the upper end of the central rod.

[0010] Preferably, the lower end of the central rod is fixedly connected with a cooling pipe embedded in the counterweight box, and the cooling pipe extends and winds around the outer surface of the engine of the elevator body.

[0011] Preferably, a plurality of cooling through holes are formed on the surface of the counterweight unit.

[0012] Beneficial Effects

[0013] The utility model provides an elevator counterweight device, which has the following beneficial effects:

[0014] 1. For this elevator counterweight device, by setting the counterweight box and the waterproof cover plate, multiple counterweight units can be protected, effectively preventing the counterweight units from being corroded by wind, sun and rain, thus greatly extending the service life of the counterweight units.

[0015] 2. For this elevator counterweight device, by setting the limiting groove, the first convex column and the second convex column, and using the second convex column and the limiting groove to fit with each other, the counterweight unit at the bottom can be limited. By using the first convex column and the limiting groove to fit with each other, it is convenient to splice and fix multiple counterweight units. By setting the finger grooves, it is convenient to take the counterweight units. Compared with the integral counterweight block structure, this counterweight unit is convenient for installation and disassembly, providing convenience for users.

[0016] 3. For this elevator counterweight device, by setting the cooling fans, the cooling strip holes, the central rods, the cooling pipes and the cooling through holes, when the cooling fans work, the air flow passes through the cooling through holes, and the cooling pipes are used to transfer the heat to the central rods, and then the central rods transfer the heat to the counterweight units, so as to dissipate heat from the elevator body and enable the elevator body to work more stably. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an elevator counterweight device proposed by the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the counterweight box of an elevator counterweight device proposed by the utility model;

[0019] Figure 3 It is a schematic diagram of the sectional structure of the counterweight box of an elevator counterweight device proposed by the utility model;

[0020] Figure 4 This is a three-dimensional structural schematic diagram of a counterweight unit of a lift counterweight device proposed by the present utility model.

[0021] In the figure: 1, lift body; 2, counterweight box; 3, counterweight unit; 4, first protruding column; 5, limiting groove; 6, second protruding column; 7, finger groove; 8, waterproof cover plate; 9, fixing bolt; 10, threaded hole; 11, handle; 12, cooling fan; 13, cooling strip hole; 14, central rod; 15, baffle; 16, fixing nut; 17, cooling pipe; 18, cooling through hole. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Example 1, please refer to Figures 1-4 , the present utility model provides a technical solution: a lift counterweight device, including a lift body 1 and a counterweight box 2. Both sides of the lift body 1 are fixedly connected with support platforms. The bottom of the counterweight box 2 is fixedly connected to the surface of the support platform. The side surface of the counterweight box 2 is fixedly connected to the surface of the lift body 1. A plurality of counterweight units 3 are arranged inside the counterweight box 2. Two first protruding columns 4 are fixedly connected to the upper surface of the counterweight unit 3. Two limiting grooves 5 are opened on the lower surface of the counterweight unit 3. A plurality of second protruding columns 6 are fixedly connected to the inner bottom of the counterweight box 2. And both the first protruding column 4 and the second protruding column 6 can be mutually fitted with the limiting groove 5. Finger grooves 7 are opened on both sides of the counterweight unit 3. A waterproof cover plate 8 is arranged at the upper end of the counterweight box 2. By providing the counterweight box 2 and the waterproof cover plate 8, multiple counterweight units 3 can be protected, effectively avoiding corrosion of the counterweight units 3 caused by wind, sun and rain, thereby greatly improving the service life of the counterweight units 3.

[0024] By providing the limiting groove 5, the first protruding column 4 and the second protruding column 6, and using the mutual fit of the second protruding column 6 and the limiting groove 5, the counterweight unit 3 at the bottom can be limited. By using the mutual fit of the first protruding column 4 and the limiting groove 5, it is convenient to splice and fix multiple counterweight units 3 to each other. By providing the finger grooves 7, it is convenient to take the counterweight units 3. Compared with the integral counterweight block structure, the present counterweight unit 3 is convenient for installation and disassembly, providing convenience for users.

[0025] The surface of the waterproof cover plate 8 is threadedly connected with fixing bolts 9. Threaded holes 10 are formed on the upper surface of the counterweight box 2. The fixing bolts 9 and the threaded holes 10 form a threaded connection. By screwing the fixing bolts 9 into the threaded holes 10, the waterproof cover plate 8 can be fixed.

[0026] Two handles 11 are fixedly connected to the upper surface of the waterproof cover plate 8, and the two handles 11 are symmetrically distributed left and right. By providing the handles 11, it is convenient to pick up and carry the waterproof cover plate 8.

[0027] Example 2, please refer to Figures 1-4 , including Example 1, and on the basis of Example 1, the present utility model provides a technical solution: a plurality of heat dissipation fans 12 are provided on the surface of the counterweight box 2 close to the elevator body 1, and a plurality of heat dissipation strip-shaped holes 13 are formed on the surface of the counterweight box 2 away from the elevator body 1.

[0028] A plurality of central rods 14 are fixedly connected to the inner bottom of the counterweight box 2. A baffle 15 is sleeved on the outer surface of the upper end of the central rod 14. The upper end of the central rod 14 is threadedly connected with a fixing nut 16. By providing the central rod 14, the baffle 15 and the fixing nut 16, and using the threaded connection between the fixing nut 16 and the central rod 14, a downward acting force can be applied to the baffle 15. By pressing the counterweight unit 3 downward through the baffle 15, the counterweight unit 3 can be fixed, thereby effectively avoiding the collapse of the counterweight unit 3 after being spliced and combined, and improving the overall stability of the counterweight unit 3.

[0029] The lower end of the central rod 14 is fixedly connected with a heat dissipation pipe 17 embedded in the counterweight box 2, and the heat dissipation pipe 17 extends and winds around the outer surface of the engine of the elevator body 1. A plurality of heat dissipation through holes 18 are formed on the surface of the counterweight unit 3. By providing the heat dissipation fans 12, the heat dissipation strip-shaped holes 13, the central rod 14, the heat dissipation pipe 17 and the heat dissipation through holes 18, and using the heat dissipation fans 12 to work, the air flow passes through the heat dissipation through holes 18, and the heat is transferred to the central rod 14 through the heat dissipation pipe 17, and then the heat is transferred to the counterweight unit 3 by the central rod 14, so that the elevator body 1 can be dissipated heat, and the hot air will finally be discharged from the heat dissipation strip-shaped holes 13, so that the elevator body 1 can work more stably.

[0030] In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A lift counterweight device, comprising a lift body (1) and a counterweight box (2), characterized in that: Both sides of the elevator body (1) are fixedly connected with support platforms. The bottom of the counterweight box (2) is fixedly connected to the surface of the support platform, and the side surface of the counterweight box (2) is fixedly connected to the surface of the elevator body (1). A plurality of counterweight units (3) are arranged inside the counterweight box (2). Two first protruding columns (4) are fixedly connected to the upper surface of the counterweight unit (3), and two limiting grooves (5) are formed on the lower surface of the counterweight unit (3). A plurality of second protruding columns (6) are fixedly connected to the inner bottom of the counterweight box (2), and both the first protruding column (4) and the second protruding column (6) can be mutually engaged with the limiting groove (5). Finger grooves (7) are formed on both sides of the counterweight unit (3), and a waterproof cover plate (8) is arranged at the upper end of the counterweight box (2).

2. The counterweight device of an elevator according to claim 1, characterized in that: A fixing bolt (9) is threadedly connected to the surface of the waterproof cover plate (8), and a threaded hole (10) is formed on the upper surface of the counterweight box (2). The fixing bolt (9) and the threaded hole (10) form a threaded connection.

3. The counterweight device of an elevator according to claim 2, characterized in that: Two handles (11) are fixedly connected to the upper surface of the waterproof cover plate (8), and the two handles (11) are symmetrically distributed left and right.

4. A lift counterweight device according to claim 1, characterized in that: A plurality of cooling fans (12) are arranged on the side of the counterweight box (2) close to the elevator body (1), and a plurality of cooling strip holes (13) are formed on the side of the counterweight box (2) away from the elevator body (1).

5. The counterweight device of an elevator according to claim 1, wherein: A plurality of central rods (14) are fixedly connected to the inner bottom of the counterweight box (2). A baffle (15) is sleeved on the outer surface of the upper end of the central rod (14), and a fixing nut (16) is threadedly connected to the upper end of the central rod (14).

6. A counterweight device for a lift according to claim 5, characterized in that: The lower end of the central rod (14) is fixedly connected with a heat dissipation pipe (17) embedded in the counterweight box (2), and the heat dissipation pipe (17) extends and winds around the outer surface of the engine of the elevator body (1).

7. A counterweight device for a lift according to claim 6, characterized in that: A plurality of heat dissipation through holes (18) are formed on the surface of the counterweight unit (3).

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