Counterweight device for goods elevator

Abstract

The utility model belongs to the technical field of counterweight devices, and particularly relates to a counterweight device for a goods elevator, which comprises a counterweight housing body and a counterweight block, and a bottom groove is arranged at the bottom end of the inner side of the counterweight housing body; a plurality of balancing weights are arranged on the inner side of the counterweight housing body, convex parts are integrally formed at the bottom ends of the balancing weights, and concave parts are integrally formed at the upper ends of the balancing weights; a plurality of positioning grooves are formed in the two sides of the counterweight housing body; limiting strips are fixedly connected to the two sides of the counterweight housing body correspondingly, sliding sleeves are arranged on the two sides of the counterweight housing body correspondingly, limiting grooves are formed in the inner walls of the two sides of the sliding sleeves correspondingly, through grooves are formed in the sliding sleeves, limiting blocks are movably connected into the through grooves, and handle rods are fixedly connected to the rear ends of the limiting blocks. Compared with the counterweight housing body, the counterweight block is simple and convenient to connect, the mounting mode is relatively flexible, meanwhile, the whole counterweight block can be limited and fixed through the sliding sleeve with the limiting block, and the mounting is more stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of counterweight devices, and in particular relates to a counterweight device for a freight elevator. Background Art

[0002] The counterweight device of a freight elevator is a device that balances the weight of the freight elevator car. Freight elevators are usually equipped with a certain counterweight to balance the weight of the freight elevator and the objects it carries, so as to reduce the burden on the driving equipment. The counterweight device mainly includes a counterweight frame and several elevator counterweight blocks installed in the counterweight frame.

[0003] When the counterweight block in the existing freight elevator counterweight device is installed relative to the counterweight frame, the protruding ends at both ends of the counterweight block are engaged with the grooves on the inner walls of the counterweight frame on both sides. When performing the above-mentioned installation operation, in order to be able to smoothly install the counterweight block in the counterweight frame, it is necessary to first tilt the counterweight block left and right so that the counterweight block is located on the inner side of the counterweight frame, and then let the counterweight frame fall horizontally so that the protruding ends at both ends of the counterweight block are engaged with the grooves on the inner walls on both sides of the counterweight frame, thereby completing the installation of the counterweight block relative to the counterweight frame. Among them, because the counterweight block needs to be tilted left and right and half-erected during installation, when multiple counterweight blocks are installed in the counterweight frame, the overall height of the counterweight blocks increases, and the space retained on the upper inner side of the counterweight frame is reduced, which makes it inconvenient to tilt the upper counterweight blocks in the counterweight frame. Utility Model Content

[0004] In order to solve the above-mentioned problems existing in the prior art, the utility model provides a counterweight device for a freight elevator, in which several counterweight blocks can be installed horizontally on a counterweight frame body without tilting and moving left and right, and adjacent counterweight blocks are positioned and snap-fitted connected by recesses and counterweight blocks, and the bottom counterweight blocks are positioned and snap-fitted connected by protrusions and bottom grooves. The connection is simple and convenient, the installation method is relatively flexible, and it is better to use. At the same time, the sliding sleeves with limit blocks and handlebars on both sides of the counterweight frame body can be used in conjunction with several positioning grooves on both sides of the counterweight frame body, so that the upper counterweight blocks after installation can be further limited and fixed, so as to further limit and fix the counterweight blocks as a whole, so that their installation is more stable, the counterweight blocks can be prevented from loosening, and they can be better to use.

[0005] To achieve the above object, the utility model provides the following technical solution: a counterweight device for a freight elevator, comprising a counterweight frame body and a counterweight block, wherein a bottom groove is provided at the inner bottom end of the counterweight frame body;

[0006] A plurality of counterweight blocks are arranged on the inner side of the counterweight frame, the bottom end of the counterweight block is integrally formed with a convex portion, the upper end of the counterweight block is integrally formed with a concave portion, the convex portion on the bottommost counterweight block is engaged with the bottom groove, and the adjacent counterweight blocks are engaged with the concave portion through the convex portion;

[0007] A plurality of positioning grooves are provided on both sides of the counterweight frame;

[0008] The counterweight frame body is fixedly connected to limit bars on both sides, and sliding sleeves are provided on both sides of the counterweight frame body. Limiting grooves are provided on the inner walls of the sliding sleeves on both sides, and the limiting grooves are slidably connected to the sliding sleeves. A through groove is provided inside the sliding sleeve, and the interior of the through groove is movably connected to a limiting block, and the front end of the limit block is snap-fitted and connected with the positioning groove and the recessed portion on the topmost counterweight block, and the rear end of the limit block is fixedly connected to a handle bar, and grooves are provided on both sides of the front end of the handle bar, and a spring is fixedly connected between the rear end of the groove and the rear end of the sliding sleeve.

[0009] As a preferred technical solution for a counterweight device for a freight elevator of the utility model, the positioning grooves are linearly and equidistantly distributed.

[0010] As a preferred technical solution for a counterweight device for a freight elevator of the utility model, the sliding sleeve is a "U"-shaped structure.

[0011] As a preferred technical solution for a counterweight device for a freight elevator of the utility model, a handle groove is provided in the middle position of the handle bar.

[0012] As an optimal technical solution for a counterweight device for a freight elevator of the utility model, the rear ends of both ends of the sliding sleeve are fixedly connected with guide sleeves, the front ends of the handlebar are fixedly connected with limit rods on both sides, and the limit rods are slidably connected to the guide sleeves, and the front end of the limit rod is fixedly connected with a limit head.

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

[0014] The utility model provides a bottom groove at the bottom of the counterweight frame, and a recess and a convex portion are respectively provided at the upper and lower ends of the counterweight block. A plurality of counterweight blocks can be installed horizontally on the counterweight frame without tilting and moving left and right. Adjacent counterweight blocks are positioned and snap-fitted connected by the recesses and the counterweight blocks, and the bottom counterweight blocks are positioned and snap-fitted connected by the convex portion and the bottom groove. The connection is simple and convenient, the installation method is relatively flexible, and the use is better.

[0015] After a plurality of counterweight blocks are snap-fitted and positioned in the counterweight frame body, the utility model can further limit and fix the counterweight blocks on the upper layer after installation by using the sliding sleeves with limit blocks and handles on both sides of the counterweight frame body in cooperation with a plurality of positioning grooves on both sides of the counterweight frame body, so as to further limit and fix the counterweight blocks as a whole, making the installation more stable, preventing the counterweight blocks from loosening and better for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a right view structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the counterweight frame of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure of the counterweight block of the utility model;

[0021] Figure 5 It is a schematic diagram of the connection structure between the sliding sleeve and the counterweight frame body of the utility model;

[0022] Figure 6 It is a right view structural diagram of the connection between the sliding sleeve and the counterweight frame body of the utility model;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the connection between the sliding sleeve and the counterweight frame body of the utility model.

[0024] In the figure: 1. counterweight frame; 2. bottom groove; 3. counterweight block; 4. convex part; 5. concave part; 6. positioning groove; 7. limit strip; 8. sliding sleeve; 9. limit groove; 10. through groove; 11. limit block; 12. handle bar; 13. handle groove; 14. groove; 15. spring; 16. guide sleeve; 17. limit rod; 18. limit head. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0026] See also Figure 1-7 , the utility model provides the following technical solutions: a counterweight device for a freight elevator, comprising a counterweight frame body 1 and a counterweight block 3, a bottom groove 2 is provided at the inner bottom end of the counterweight frame body 1;

[0027] Furthermore, a plurality of counterweight blocks 3 are arranged on the inner side of the counterweight frame body 1, a convex portion 4 is integrally formed at the bottom end of the counterweight block 3, a concave portion 5 is integrally formed at the upper end of the counterweight block 3, the convex portion 4 on the bottommost counterweight block 3 is snap-fitted and connected with the bottom groove 2, and adjacent counterweight blocks 3 are snap-fitted and connected with the concave portion 5 via the convex portion 4.

[0028] In this embodiment, the utility model provides a bottom groove 2 at the bottom of the counterweight frame body 1, and a recess 5 and a convex portion 4 are respectively provided at the upper and lower ends of the counterweight block 3. Several counterweight blocks 3 can be installed horizontally on the counterweight frame body 1 without tilting and moving left and right. Adjacent counterweight blocks 3 are positioned and connected by the recess 5 and the counterweight blocks 3, and the bottom counterweight blocks 3 are positioned and connected by the convex portion 4 and the bottom groove 2. The connection is simple and convenient, the installation method is relatively flexible, and it is better to use.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, further, a plurality of positioning grooves 6 are provided on both sides of the counterweight frame body 1, and the positioning grooves 6 are linearly and equidistantly distributed;

[0030] Furthermore, both sides of the counterweight frame body 1 are fixedly connected to the limit strips 7, and both sides of the counterweight frame body 1 are provided with sliding sleeves 8. The sliding sleeves 8 are of a "U"-shaped structure. The inner walls of the sliding sleeves 8 on both sides are provided with limit grooves 9, and the limit grooves 9 are slidably connected to the sliding sleeves 8. A through groove 10 is provided inside the sliding sleeve 8, and the internal movability of the through groove 10 is connected to a limit block 11, and the front end of the limit block 11 is engaged with the positioning groove 6 and the recess 5 on the topmost counterweight block 3. The rear end of the limit block 11 is fixedly connected to a handle bar 12, and a handle groove 13 is provided in the middle position of the handle bar 12. Grooves 14 are provided on both sides of the front end of the handle bar 12, and a spring 15 is fixedly connected between the rear end of the groove 14 and the rear end of the sliding sleeve 8. The rear ends of the sliding sleeves 8 are fixedly connected to guide sleeves 16, and both sides of the front end of the handle bar 12 are fixedly connected to limit rods 17, and the limit rods 17 and the guide sleeves 16 is slidably connected, and the front end of the limit rod 17 is fixedly connected to the limit head 18, wherein, through the setting of the limit strip 7 and the limit groove 9, the sliding sleeve 8 can slide up and down relative to the counterweight frame body 1, and the limit block 11 is used for the engagement and limiting of the counterweight block 3. The limit block 11 can be pulled out of the positioning groove 6 by the handle bar 12 with the handle groove 13, and drive the spring 15 to stretch, so as to release the limiting and fixing state of the sliding sleeve 8, so that the sliding sleeve 8 can slide up and down relative to the counterweight frame body 1, and after the limit block 11 is aligned with the positioning groove 6 at the corresponding position and the handle bar 12 is released, under the rebound force of the spring 15, the front end of the limit block 11 can be stuck in the positioning groove 6 and the recess 5 on the uppermost counterweight block 3, so as to limit and fix the counterweight block 3 as a whole, and the limit rod 17 with the limit head 18 slides relative to the guide sleeve 16, so as to limit the backward pulling of the handle bar 12 and the limit block 11.

[0031] In the present embodiment, after a plurality of counterweight blocks 3 are snap-fitted and positioned and installed in the counterweight frame body 1, the utility model can also further limit and fix the counterweight blocks 3 on the upper layer after installation by using the sliding sleeves 8 with limit blocks 11 and handle bars 12 on both sides of the counterweight frame body 1 in conjunction with a plurality of positioning grooves 6 on both sides of the counterweight frame body 1, so as to further limit and fix the counterweight blocks 3 as a whole, making their installation more stable, preventing the counterweight blocks 3 from loosening and allowing for better use.

[0032] The use process and working principle of the utility model are as follows: auxiliary devices such as guide shoes and connectors are further installed on the counterweight frame body 1, and are connected to the wire rope accordingly. When the counterweight block 3 is installed relative to the counterweight frame body 1, the counterweight block 3 of the bottom layer is installed first, and the counterweight block 3 is placed horizontally on the inner bottom of the counterweight frame body 1, and the convex portion 4 at the bottom end of the counterweight block 3 is positioned and engaged with the bottom groove 2 at the bottom end of the counterweight frame body 1, and then the upper section of the counterweight blocks 3 are installed in the same way. The adjacent counterweight blocks 3 are positioned and engaged with the concave portion 5 through the convex portion 4. After the installation of the several counterweight blocks 3 is completed, the handle bar 12 is pulled back through the groove 13, and the front end of the limit block 11 is disengaged from the positioning groove 6 on the side of the counterweight frame body 1 by pulling the handle bar 12 back to release the limited fixed state of the sliding sleeve 8, and in this process, the spring 15 Driven by elastic stretching, the limit rod 17 is guided and moved relative to the guide sleeve 16, and the end is limited by the limit head 18. In the process of pulling the handle bar 12 backward, the sliding sleeve 8 is simultaneously moved downward relative to the counterweight frame body 1, and slides relative to the limit strip 7 through the limit groove 9 for guiding and limiting, and the sliding sleeve 8 is pulled to the outside of the positioning groove 6 at the corresponding position, and the limit block 11 is overlapped with the corresponding positioning groove 6, and then the handle bar 12 is released, and with the help of the rebound force of the spring 15, the handle bar 12 and the limit block 11 are reset, and the limit block 11 can be inserted into the positioning groove 6 at this position, and further stuck in the recess 5 of the upper counterweight block 3, so as to further limit and fix the upper counterweight block 3, thereby further limiting and fixing the entire counterweight block 3 after installation, making its installation more stable and preventing the counterweight block 3 from loosening.

[0033] In addition, the contents not described in detail in this embodiment are all within the scope of prior art and common knowledge.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A counterweight device for a freight elevator, characterized in that: It comprises a counterweight frame body (1) and a counterweight block (3), wherein a bottom groove (2) is provided at the inner bottom end of the counterweight frame body (1); A plurality of counterweight blocks (3) are arranged on the inner side of the counterweight frame body (1), a convex portion (4) is integrally formed at the bottom end of the counterweight block (3), a concave portion (5) is integrally formed at the top end of the counterweight block (3), the convex portion (4) on the bottommost counterweight block (3) is snap-fitted and connected with the bottom groove (2), and adjacent counterweight blocks (3) are snap-fitted and connected with the concave portion (5) via the convex portion (4); A plurality of positioning grooves (6) are provided on both sides of the counterweight frame body (1); Both sides of the counterweight frame body (1) are fixedly connected to limit bars (7), both sides of the counterweight frame body (1) are provided with sliding sleeves (8), both sides of the inner walls of the sliding sleeves (8) are provided with limit grooves (9), and the limit grooves (9) are slidably connected to the sliding sleeves (8), the interior of the sliding sleeves (8) is provided with through grooves (10), the interior of the through grooves (10) is movably connected to a limit block (11), and the front end of the limit block (11) is snap-fitted with the positioning groove (6) and the recessed portion (5) on the uppermost counterweight block (3), the rear end of the limit block (11) is fixedly connected to a handlebar (12), both sides of the front end of the handlebar (12) are provided with grooves (14), and a spring (15) is fixedly connected between the rear end of the groove (14) and the rear end of the sliding sleeve (8).

2. A counterweight device for a freight elevator according to claim 1, characterized in that: The positioning grooves (6) are linearly and equidistantly distributed.

3. A counterweight device for a freight elevator according to claim 1, characterized in that: The sliding sleeve (8) is a "U"-shaped structure.

4. A counterweight device for a freight elevator according to claim 1, characterized in that: A handle groove (13) is provided in the middle of the handle bar (12).

5. A counterweight device for a freight elevator according to claim 1, characterized in that: The rear ends of both ends of the sliding sleeve (8) are fixedly connected to guide sleeves (16), the front ends of the handlebar (12) are fixedly connected to limit rods (17), and the limit rods (17) are slidably connected to the guide sleeves (16), and the front end of the limit rod (17) is fixedly connected to the limit head (18).

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