Modular elevator counterweight

Abstract

The utility model relates to elevator counterweight technical field especially is equipped with elevator counterweight, it includes encapsulation shell and a plurality of filling block. The inside of encapsulation shell is provided with the accommodation cavity, and the upper side of encapsulation shell at least open setting. The both ends of encapsulation shell are projected and are provided with the convex part for installing the joint. The inside of accommodation cavity is sequentially along the length direction of accommodation cavity and is laid with a plurality of filling block. The contact connection between two adjacent filling blocks. A plurality of filling blocks are filled in encapsulation shell to assemble and form a counterweight, and the volume of filling block is small, and different models of counterweight can be matched by filling the corresponding number of filling block, and the compatibility is stronger, and the cost is lower, and more extensive scene is adapted. Moreover, encapsulation shell and filling block are convenient to process, and carrying, storage, installation, disassembly are more relaxed, more convenient, and installation and disassembly efficiency are improved obviously.

Description

Technical Field

[0001] This utility model relates to the field of elevator counterweight technology, and in particular to a prefabricated elevator counterweight block. Background Technology

[0002] The counterweight in an elevator balances the car. A traction rope connects the car and the counterweight frame. The friction between the traction rope and the traction sheave on the roof drives the car up and down, balancing its weight. The traction sheave, by distributing the weight difference between the car and the counterweight, causes the car to move up and down. The counterweight is mounted on a fixed frame and connected to the traction rope inside the elevator. The counterweight system is one of the main components of an elevator. The metal counterweight (also called a counterweight block, balance block, etc.) is currently available in several types: steel plate, cast iron, and die-cast scrap iron. All are integrally cast. Steel plate counterweights are the most expensive and less commonly used. Cast iron and die-cast scrap iron counterweights are slightly cheaper, but due to their integral casting, they require large equipment investments and high mold costs, limiting mass production to the same specifications, resulting in poor compatibility and higher costs. Summary of the Invention

[0003] In order to address the technical deficiencies mentioned in the background art, the purpose of this utility model is to provide a prefabricated elevator counterweight.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A prefabricated elevator counterweight includes a housing and multiple filler blocks; the housing has an internal cavity, and the housing is open at least on the top; both ends of the housing have protrusions for mounting and snapping; multiple filler blocks are arranged sequentially along the length of the cavity, and both ends of each filler block abut against the opposite side walls of the cavity along its length; adjacent filler blocks are in contact with each other.

[0006] By adopting the above technical solution, multiple filler blocks are filled inside the packaging shell to assemble a counterweight. The filler blocks are small in size, and different models of counterweights can be matched by filling the corresponding number of filler blocks, resulting in stronger compatibility, lower cost, and wider applicability to various scenarios. Moreover, the packaging shell and filler blocks are easy to process, making handling, storage, installation, and disassembly easier and more convenient, significantly improving installation and disassembly efficiency.

[0007] Furthermore, the upper end of the encapsulation shell is open, and the cross-section of the encapsulation shell is set as a U-shaped structure, which is simple in structure, convenient and quick to process, and easy to install the filling block.

[0008] Furthermore, both the upper and lower sides of the encapsulation shell are open, and the lower side of the encapsulation shell has a receiving section protruding into the receiving cavity. The cross-section of the side of the encapsulation shell is designed with an L-shape, which facilitates assembly and saves costs. The lower surface of the filling block is placed on the receiving section, which facilitates quick alignment and fixation of the filling block, resulting in higher assembly efficiency.

[0009] Furthermore, the filling block is provided with an overlap groove relative to the receiving section, and the receiving section is located within the overlap groove. The lower surface of the receiving section is flush with the lower surface of the filling block, resulting in a flatter stacking and increasing the contact area between the upper and lower counterweight blocks, thereby improving stability and load-bearing strength.

[0010] Furthermore, a pressing section is provided on the upper side of the encapsulation shell protruding towards the receiving cavity, and the filling block is engaged between the pressing section and the receiving section, resulting in higher overall stability and effectively preventing the filling block from detaching from the receiving cavity.

[0011] Furthermore, the filling block is provided with a snap-fit ​​groove corresponding to the position of the pressing section. The lower surface of the pressing section is in contact with the bottom of the snap-fit ​​groove, and the upper surface of the pressing section is flush with the upper surface of the filling block, which facilitates stacking and leveling and makes it more convenient to use.

[0012] Furthermore, the lower sides of both sides of the packaging shell along the length direction are provided with recessed clearance grooves, making handling easier.

[0013] Furthermore, the upper surface of the filling block is flush with the upper surface of the packaging shell, which facilitates stacking during use and improves stability.

[0014] Furthermore, bonding or welding two adjacent filler blocks together can improve stability and make installation and disassembly more convenient and faster.

[0015] Furthermore, a sealing steel plate is welded to the open side of each of the encapsulation shells, which is more aesthetically pleasing and has higher strength.

[0016] In summary, the beneficial effects of this utility model are as follows:

[0017] This invention involves filling a package with multiple filler blocks to assemble a counterweight. The filler blocks are small in size, and different models of counterweights can be matched by filling with the corresponding number of filler blocks, resulting in stronger compatibility, lower cost, and wider applicability. Moreover, the package and filler blocks are easy to process, making handling, storage, installation, and disassembly easier and more convenient, significantly improving installation and disassembly efficiency. Attached Figure Description

[0018] Figure 1This is a plan view of the first embodiment of the prefabricated elevator counterweight of this utility model.

[0019] Figure 2 This is a cross-sectional structural schematic diagram of the first embodiment of the prefabricated elevator counterweight of this utility model.

[0020] Figure 3 This is a plan view of the second embodiment of the prefabricated elevator counterweight of this utility model.

[0021] Figure 4 This is a cross-sectional structural schematic diagram of the second embodiment of the prefabricated elevator counterweight of this utility model.

[0022] Figure 5 This is a plan view of the third embodiment of the prefabricated elevator counterweight of this utility model.

[0023] Figure 6 This is a cross-sectional structural schematic diagram of the third embodiment of the prefabricated elevator counterweight of this utility model.

[0024] Explanation of the reference numerals in the figure:

[0025] 1. Counterweight of prefabricated elevator; 2. Encapsulation shell; 21. Protrusion; 22. Recessed groove; 3. Filler block; 4. Support section; 5. Pressing section. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0027] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0028] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0029] The following is in conjunction with the appendix Figure 1-6 The embodiments of this utility model will be described in further detail below.

[0030] A prefabricated elevator counterweight 1, such as Figure 1 , Figure 2 As shown, it includes a packaging shell 2 and multiple filler blocks 3. The packaging shell 2 has an internal receiving cavity, and at least its upper side is open. Both ends of the packaging shell 2 have protruding protrusions 21 for mounting and snap-fitting. Multiple filler blocks 3 are arranged sequentially along the length of the receiving cavity. Adjacent filler blocks 3 are in contact with each other. The protruding positions can also be filled with filler blocks 3, and the size of the filler blocks 3 can be adapted to the shape and size of the packaging shell 2.

[0031] Specifically, multiple filler blocks 3 are filled inside the encapsulation shell 2 to assemble a counterweight. The filler blocks 3 are small in size, and different models of counterweights can be matched by filling the corresponding number of filler blocks 3, resulting in stronger compatibility, lower cost, and wider applicability to various scenarios. Moreover, the encapsulation shell 2 and filler blocks 3 are easy to process, making handling, storage, installation, and disassembly easier and more convenient, significantly improving installation and disassembly efficiency.

[0032] In the first embodiment, please refer to Figure 2 The upper end of the encapsulation shell 2 is open, and the cross-section of the encapsulation shell 2 is set as a U-shaped structure. The structure is simple, the processing is convenient and quick, and it is easy to install the filling block 3.

[0033] Preferably, the lower sides of both sides of the encapsulation shell 2 along the length direction are provided with recessed clearance grooves 22, which provide space for users to handle the product and make it easier to handle.

[0034] The upper surface of the filling block 3 is flush with the upper surface of the encapsulation shell 2, which facilitates stacking during use and improves stability.

[0035] In the first embodiment, adjacent filler blocks 3 in the same counterweight are connected by adhesive or welding, which improves stability and makes installation and disassembly more convenient and quick. Alternatively, inserting retaining blocks between filler blocks 3 can reduce the gap between adjacent filler blocks 3, maintaining structural stability.

[0036] In the first embodiment, the filler block 3 is a metal structure, which saves costs while ensuring sufficient self-weight. Specifically, the filler block 3 can be a steel plate, cast steel block, cast iron block, or a block made of scrap iron, iron powder, etc., through processes such as casting, hot pressing, cold pressing, stamping, forging, and bonding. The structure and size of the filler block 3 can be processed and set according to the structure of the encapsulation shell 2, which is convenient and simple. This counterweight can effectively reduce costs. The metal block made of scrap iron, iron powder, etc., is about 30% cheaper than the steel plate counterweight and about 20% cheaper than the cast iron (or die-cast) counterweight.

[0037] In the first embodiment, a sealing steel plate is welded to the open side of the encapsulation shell 2, which is more aesthetically pleasing and has higher strength. Specifically, after the filler block 3 inside the encapsulation shell 2 is installed, a sealing steel plate is welded to the open side of the encapsulation shell 2 to seal the opening. The sealing steel plate is not shown in the figure.

[0038] In the second embodiment, please refer to Figure 3 , Figure 4 The difference between this and the first embodiment lies in the structural modifications made to the encapsulation shell 2 and the filler block 3. Both the upper and lower sides of the encapsulation shell 2 are open. The lower side of the encapsulation shell 2 has a receiving section 4 protruding into the receiving cavity. The longitudinal section of the side of the encapsulation shell 2 is L-shaped, saving costs and reducing its weight, making handling and assembly easier. The lower surface of the filler block 3 rests on the receiving section 4, facilitating quick alignment and fixation of the filler block 3, resulting in higher assembly efficiency.

[0039] Preferably, the filler block 3 is provided with an overlap groove relative to the receiving section 4, and the receiving section 4 is located in the overlap groove. The lower surface of the receiving section 4 is flush with the lower surface of the filler block 3, which makes the stacking more even and can also increase the contact area between the upper and lower counterweight blocks, thereby improving the stability and load-bearing strength.

[0040] In the third embodiment, please refer to Figure 5 , Figure 6 The difference between this and the first embodiment lies in the structural modifications made to the encapsulation shell 2 and the filling block 3. A pressing section 5 protrudes from the upper side of the encapsulation shell 2 towards the receiving cavity. The filling block 3 is engaged between the pressing section 5 and the receiving section 4, resulting in higher overall stability and effectively preventing the filling block 3 from detaching from the receiving cavity. The longitudinal section of the side of the encapsulation shell 2 is designed as a C-shape.

[0041] Preferably, the filling block 3 is provided with a snap-fit ​​groove corresponding to the position of the pressing section 5, the lower surface of the pressing section 5 is in contact with the bottom of the snap-fit ​​groove, and the upper surface of the pressing section 5 is flush with the upper surface of the filling block 3, which facilitates stacking and leveling and makes it more convenient to use.

[0042] In the third embodiment, the encapsulation shell 2 includes two open frame-shaped components. First, multiple filler blocks 3 are spliced ​​together, and then the two frame-shaped components of the encapsulation shell 2 are aligned and spliced ​​together. Then, the joints of the two frame-shaped components are welded together to form an integral encapsulation shell 2, thereby wrapping and fixing the multiple filler blocks 3. Thus, the assembly of a prefabricated elevator counterweight block 1 is completed.

[0043] The counterweight 1 of this prefabricated elevator is formed by filling multiple filler blocks 3 inside a prefabricated encapsulation shell 2. The encapsulation shell 2 can be configured as an iron box or an iron frame structure, which is easy to manufacture and has a low cost. Specifically, when the encapsulation shell 2 adopts an iron box filling type, an iron box is first made of steel plate according to the external dimensions of the counterweight, and then multiple filler blocks 3 are placed inside the iron box and assembled into a whole counterweight. When the encapsulation shell 2 adopts an iron frame assembly type, an iron frame is first made of angle steel, channel steel, C-shaped steel, or steel plate according to the external dimensions of the counterweight, and then assembled with multiple filler blocks 3 into a whole counterweight. The filled blocks 3 include, but are not limited to, steel plates, cast steel blocks, cast iron blocks, and block-shaped objects made from scrap iron, iron powder, etc., through processes such as casting, hot pressing, cold pressing, stamping, forging, and bonding. This method is even more cost-effective and easier to manufacture.

[0044] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A prefabricated elevator counterweight, characterized in that, It includes a packaging shell (2) and multiple filler blocks (3); the packaging shell (2) has a receiving cavity inside, and the packaging shell (2) is open at least on the upper side; both ends of the packaging shell (2) are provided with protrusions (21) for mounting and snapping; multiple filler blocks (3) are arranged sequentially along the length of the receiving cavity; adjacent filler blocks (3) are in contact with each other.

2. The prefabricated elevator counterweight according to claim 1, characterized in that, The upper end of the encapsulation shell (2) is open, and the cross-section of the encapsulation shell (2) is set as a U-shaped structure.

3. The prefabricated elevator counterweight according to claim 1, characterized in that, The upper and lower sides of the encapsulation shell (2) are both open. The lower side of the encapsulation shell (2) is provided with a receiving section (4) that protrudes into the receiving cavity. The cross-section of the side of the encapsulation shell (2) is set as an L-shaped structure. The lower surface of the filling block (3) is placed on the receiving section (4).

4. The prefabricated elevator counterweight according to claim 3, characterized in that, The filling block (3) is provided with an overlap groove relative to the receiving section (4), and the receiving section (4) is located in the overlap groove; the lower surface of the receiving section (4) is flush with the lower surface of the filling block (3).

5. The prefabricated elevator counterweight according to claim 3, characterized in that, The upper side of the encapsulation shell (2) protrudes towards the receiving cavity and is provided with a pressing section (5), and the filling block (3) is engaged between the pressing section (5) and the receiving section (4).

6. The prefabricated elevator counterweight according to claim 5, characterized in that, The filling block (3) is provided with a snap-fit ​​groove corresponding to the position of the pressing section (5). The lower surface of the pressing section (5) is in contact with the bottom of the snap-fit ​​groove, and the upper surface of the pressing section (5) is flush with the upper surface of the filling block (3).

7. The prefabricated elevator counterweight according to claim 1, characterized in that, The encapsulation shell (2) has recessed clearance grooves (22) on the lower sides of both sides along the length direction.

8. The prefabricated elevator counterweight according to claim 1, characterized in that, The upper surface of the filling block (3) is flush with the upper surface of the encapsulation shell (2).

9. The prefabricated elevator counterweight according to claim 1, characterized in that, The two adjacent filler blocks (3) are glued or welded together.

10. The prefabricated elevator counterweight according to claim 1, characterized in that, Each of the open sides of the encapsulation shell (2) is welded with a sealing steel plate.

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