Compact counterweight system

Abstract

The utility model relates to the technical field of elevators, and particularly discloses a compact counterweight system which comprises two counterweight frames, and a plurality of counterweight blocks are arranged between the two counterweight frames in a stacked mode. The two upper beam pieces are arranged on the two sides of the upper ends of the two counterweight frames correspondingly; the two lower beam pieces are arranged on the two sides of the lower ends of the two counterweight frames correspondingly; the two upper beam pieces are arranged on the lower portion of the elevator shaft, inclined grooves are formed in the two sides of a wheel shaft of the counterweight diversion sheave respectively, the counterweight diversion sheave is arranged below the two upper beam pieces in a clamped mode through the inclined grooves, and the two clamping plates are fixed to the two upper beam pieces respectively and connected into the inclined grooves in a clamped mode respectively. The safety coefficient is guaranteed, meanwhile, materials can be reduced, the production cost is reduced, and compared with the prior art, the high use value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a compact counterweight system. Background Art

[0002] In the prior art, the counterweight idler wheels are all suspended above the upper beam piece. The counterweight ropesheave is fixed to the connecting plate through the positioning plate, and the positioning plate is combined with the connecting piece and finally connected and fixed to the upper beam piece, thus forming the entire counterweight system. In this structure, too many components are connected by bolts. If any bolt becomes loose, the counterweight ropesheave may be stuck or fall off, posing certain potential safety hazards and easily causing serious safety accidents.

[0003] In addition to the above defects, when the top floor of the hoistway is limited in the prior structure, the counterweight ropesheave wheel assembly needs to occupy a large height space, which will cause the counterweight placement space to become smaller. As a result, the number of steel plate counterweights increases, the cost rises, and the counterweight wheel assembly itself requires more materials.

[0004] In order to solve the above defects, the present application discloses a compact counterweight system. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model discloses a compact counterweight system.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a compact counterweight system, comprising:

[0007] Two counterweight frames, with several counterweight blocks stacked between the two counterweight frames;

[0008] Two upper beam pieces, which are respectively arranged on both sides of the upper ends of the two counterweight frames;

[0009] Two lower beam pieces, which are respectively arranged on both sides of the lower ends of the two counterweight frames;

[0010] One counterweight ropesheave, with inclined grooves respectively opened on both sides of the axle of the counterweight ropesheave, and the counterweight ropesheave is clamped below the two upper beam pieces through the inclined grooves;

[0011] Two clamping plates, which are respectively fixed on the two upper beam pieces and respectively clamped in the inclined grooves.

[0012] Further preferably, pressing components for pressing several counterweight blocks are respectively arranged in the two counterweight frames.

[0013] Further preferably, the pressing component includes an L-shaped plate member, an adjusting screw rod and a pressing plate. The L-shaped plate member is adjustably fixed to the inner side of the counterweight frame by bolts and nuts. The pressing plate is fixed to the bottom of the adjusting screw rod. The adjusting screw rod passes through the transverse portion of the L-shaped plate member and is fixed to the L-shaped plate member by a nut.

[0014] Further preferably, a retaining rope shaft tangent to the counterweight return pulley is provided through the bottoms of the two upper beam pieces.

[0015] Further preferably, a rope pulley cover is installed above the counterweight frame corresponding to the two upper beam pieces.

[0016] Further preferably, mounting seats are respectively arranged on both sides of the two upper beam pieces and the two lower beam pieces, and roller guides are arranged on the mounting seats.

[0017] Further preferably, a bottom plate is connected to the bottoms of the two lower beam pieces, and a buffer seat and a U-shaped bolt are arranged below the bottom plate.

[0018] The present utility model achieves the following beneficial effects:

[0019] In this application, the counterweight return pulley is directly combined with the two upper beam pieces. The inclined groove on the wheel shaft is clamped below the upper beam piece and is further strengthened and fixed by a clamping plate. When the counterweight system is installed, under the interaction of the upward force of the steel wire rope and the gravity of the counterweight frame itself, the combination of the counterweight return pulley and the two upper beam pieces is more firm, and it is impossible for the counterweight wheel to fall off, which is very safe. In addition, compared with the suspended counterweight wheel, this structure can make the counterweight frame higher, more low-cost cement counterweight blocks can be placed, and compared with the prior art, it is more material-saving in material use, the structure is simpler, the installation is convenient and efficient, and the material and labor costs are effectively reduced.

[0020] As for other features and advantages of the present utility model, they will be described in the subsequent specification, and will be partially obvious from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the structure pointed out in the specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments in line with the disclosure of the present utility model, and are used together with the specification to explain the principles of the present disclosure.

[0022] Figure 1 It is a schematic diagram of the overall structure disclosed by the present utility model;

[0023] Figure 2 is Figure 1 the enlarged structural schematic diagram of part A in

[0024] Figure 3 Schematic cross-sectional structure diagram disclosed by the present utility model. Specific implementation manners

[0025] 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 of the embodiments.

[0026] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or positional relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0027] Embodiment

[0028] In order to solve the defects of low safety factor, high material cost and troublesome installation in the prior art, referring to Figures 1-3 as shown, the present application discloses a compact counterweight system, including: two counterweight frames 10, and a plurality of counterweight blocks 20 are stacked between the two counterweight frames;

[0029] Two upper beam pieces 30, which are respectively arranged on both sides of the upper ends of the two counterweight frames;

[0030] Two lower beam pieces 40, which are respectively arranged on both sides of the lower ends of the two counterweight frames;

[0031] One counterweight sheave 50, and inclined grooves 51 are respectively opened on both sides of the axle of the counterweight sheave. The counterweight sheave is clamped below the two upper beam pieces through the inclined grooves;

[0032] Two clamping plates 60, which are respectively fixed on the two upper beam pieces and respectively clamped in the inclined grooves.

[0033] After the counterweight system is installed, under the interaction of the upward force of the steel wire rope and the gravity of the counterweight frame itself, the combination of the counterweight sheave and the two upper beam pieces is more firm, and the possibility of the counterweight wheel falling off will not occur, which is very safe. In addition, compared with the suspended counterweight wheel, this structure can make the height of the counterweight frame higher, more low-cost cement counterweight blocks can be placed, and compared with the prior art, it is more material-saving in material use, the structure is simpler, and the installation is also convenient and efficient, effectively reducing the material and labor costs.

[0034] In this embodiment, pressing components 70 for pressing a number of counterweight blocks are respectively arranged inside two counterweight frames. Specifically, the pressing component of the present application includes an L-shaped plate member 71, an adjusting screw 72, and a pressing plate 73. The L-shaped plate member is adjustably fixed to the inner side of the counterweight frame by bolts and nuts (not shown). The pressing plate is fixed to the bottom of the adjusting screw. The adjusting screw passes through the horizontal portion of the L-shaped plate member and is fixed to the L-shaped plate member by a nut. Refer to Figure 2 As shown, on one side of the counterweight frame of the present application, a plurality of screw holes (not shown) are provided in the height direction. During specific installation, the operator passes a bolt through the corresponding screw hole and screws on a nut according to the height of the stacked counterweight blocks, thereby fixing the L-shaped plate member to the counterweight frame. After the L-shaped plate member is fixed, the operator presses the pressing plate against the uppermost counterweight block and then screws on a nut above the adjusting screw to integrally press the stacked counterweight blocks.

[0035] In this embodiment, a rope blocking shaft 100 tangent to the counterweight return pulley is provided through the bottoms of two upper beam pieces at the bottom of the counterweight return pulley, which can increase the rope blocking strength and prevent rope skipping.

[0036] A rope pulley cover 110 is installed above the two upper beam pieces corresponding to the counterweight frame in the present application, which can prevent dust from falling into the pulley groove of the counterweight return pulley and affecting its normal operation.

[0037] In order to enable the counterweight system of the present application to slide, mounting seats 80 are respectively arranged on both sides of the two upper beam pieces and the two lower beam pieces, and roller guides 90 are arranged on the mounting seats.

[0038] In addition to the above structures, a bottom plate 120 is connected to the bottoms of the two lower beam pieces of the present application. A buffer seat 130 and a U-shaped bolt 140 are arranged below the bottom plate. The buffer seat can prevent the counterweight device from directly hitting the ground, and the U-shaped bolt can be used to hang a compensation chain.

[0039] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0040] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A compact counterweight system, characterized in that, Comprising: Two counterweight frames, with a number of counterweight blocks stacked between the two counterweight frames; Two upper beam pieces, which are respectively arranged on both sides of the upper ends of the two counterweight frames; Two lower beam pieces, which are respectively arranged on both sides of the lower ends of the two counterweight frames; One counterweight deflector sheave, with inclined grooves respectively formed on both sides of the axle of the counterweight deflector sheave, and the counterweight deflector sheave is clamped below the two upper beam pieces through the inclined grooves; Two clamping plates, which are respectively fixed on the two upper beam pieces and respectively clamped in the inclined grooves.

2. The compact counterweight system according to claim 1, wherein Pressure covering assemblies for pressure covering a number of counterweight blocks are respectively arranged in the two counterweight frames.

3. A compact counterweight system according to claim 2, characterized in that, The pressure covering assembly includes an L-shaped plate member, an adjusting screw rod and a pressing plate. The L-shaped plate member is adjustably fixed to the inner side of the counterweight frame through bolts and nuts. The pressing plate is fixed to the bottom of the adjusting screw rod. The adjusting screw rod passes through the transverse part of the L-shaped plate member and is fixed to the L-shaped plate member through a nut.

4. A compact counterweight system according to claim 1, characterized in that, A rope blocking shaft tangent to the counterweight deflector sheave penetrates through the bottoms of the two upper beam pieces at the position of the counterweight deflector sheave.

5. A compact counterweight system according to claim 1, characterized in that, Rope sheave covers are installed above the two upper beam pieces corresponding to the counterweight frames.

6. The compact counterweight system according to claim 1, wherein Mounting seats are respectively arranged on both sides of the two upper beam pieces and the two lower beam pieces, and roller guide shoes are arranged on the mounting seats.

7. A compact counterweight system according to claim 1, characterized in that, A bottom plate is connected to the bottoms of the two lower beam pieces, and a buffer seat and U-shaped bolts are arranged below the bottom plate.

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