4: 1 double-row counterweight housing structure applied to super-large-load cargo elevator

Abstract

A 4: 1 double-row counterweight housing structure applied to an ultra-large load cargo elevator comprises two counterweight modules which are arranged side by side left and right, and each counterweight module comprises a counterweight housing; the lower portion of the counterweight frame is provided with at least two counterweight mounting spaces arranged from left to right, each counterweight mounting space is internally provided with a counterweight array, each counterweight array comprises a plurality of counterweight blocks stacked from top to bottom, the front ends and the rear ends of the counterweight blocks are provided with positioning protrusions, and the counterweight blocks are arranged in the counterweight mounting spaces. The front end and the rear end of the counterweight mounting space are each provided with two counterweight limiting parts distributed left and right, and the two counterweight limiting parts corresponding left and right form a counterweight positioning groove allowing the positioning protruding parts to be inserted and matched for positioning. The bottom face of the lowermost counterweight block abuts against the counterweight frame, and the counterweight array is pressed and fixed through at least one counterweight fixing assembly. The installation of the counterweight fixing assembly does not affect the structural strength of the counterweight housing, and the overall structural stability of the counterweight housing is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a 4:1 double-row counterweight frame structure applied to an ultra-large load freight elevator. Background Art

[0002] The counterweight is a component of the elevator traction system. Its function is to reduce the power of the traction motor and the torque on the traction wheel and worm gear.

[0003] Referring to the technical solution disclosed in patent No. 201922144446.2, the double-row counterweight frame structure includes two rows of counterweight frames arranged opposite each other, the two rows of counterweight frames are spaced apart, and the top and bottom of the two rows of counterweight frames are provided with connecting rods that connect the two rows of counterweight frames into a whole. A pair of counterweight wheels are provided on the top of each row of counterweight frames, and each row of counterweight frames includes a rectangular frame, a counterweight block installed in the rectangular frame, and a clamping mechanism for pressing the counterweight block installed in the rectangular frame. The clamping mechanism is arranged on the top of the counterweight block, and several through holes for connecting the side plates are opened on the columns and partitions. When in use, the rated number of counterweight blocks are placed one by one in the counterweight area, and then the clamping mechanism is placed in the groove, and the pressure plate of the clamping mechanism is pressed against the top of the counterweight block. Bolts and nuts are used to pass through the through holes and the connecting holes of the clamping mechanism to fix the clamping mechanism to the column or partition. This structure uses a clamping mechanism to stably install the elevator counterweight in the counterweight frame, making the counterweight frame run stably and facilitating the installation of the elevator counterweight.

[0004] However, when installing the clamping mechanism, it is necessary to open a plurality of through holes arranged from top to bottom on the columns and partitions, which affects the structural strength of the columns and partitions to a certain extent, resulting in a weakening of the overall structural stability of the counterweight frame. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a 4:1 double-row counterweight frame structure for use on an ultra-large load freight elevator.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A 4:1 double-row counterweight frame structure for use in an ultra-large load freight elevator comprises two counterweight modules arranged side by side on the left and right, wherein the counterweight modules include a counterweight frame; at least two counterweight installation spaces arranged from left to right are provided at the lower portion of the counterweight frame, a counterweight array is installed in each counterweight installation space, and each counterweight array includes a plurality of counterweight blocks stacked from top to bottom, positioning protrusions are provided at the front and rear ends of the counterweight blocks, and two counterweight limiting portions distributed on the left and right are provided at the front and rear ends of the counterweight installation space, wherein the two corresponding counterweight limiting portions on the left and right form a counterweight positioning groove for the positioning protrusion to be inserted and positioned; and the characteristics are as follows:

[0008] The bottom surface of the lowest counterweight block abuts against the counterweight frame, and the counterweight array is pressed and fixed by at least one counterweight fixing assembly, and the counterweight fixing assembly includes a counterweight pressing member for pressing against the top surface of the uppermost counterweight block and two counterweight pressing locking blocks respectively arranged at the front and rear ends of the counterweight pressing member, and the counterweight pressing locking blocks are fixed to the counterweight pressing member by a counterweight bolt assembly, and a counterweight fixing clamp clamped on the counterweight limiting part is formed between the counterweight pressing locking block and the counterweight pressing member.

[0009] In the present invention, the counterweight bolt assembly comprises at least a counterweight fixing bolt and a counterweight fixing nut; after the counterweight fixing bolt is loosened, the counterweight fixing assembly can move up and down along the counterweight limiting portion.

[0010] In the utility model, the counterweight pressing member is provided with two pressing member adjustment long holes extending from front to back in the length direction, and each pressing member adjustment long hole is connected to a counterweight pressing locking block through a counterweight bolt assembly.

[0011] In the present invention, the counterweight pressing locking block includes a pressing locking block body, a first counterweight pressing portion for abutting against the counterweight pressing piece, and a second counterweight pressing portion for abutting against the counterweight limiting portion. The first counterweight pressing portion, the pressing locking block body and the second counterweight pressing portion are connected to form a stepped structure, and the second counterweight pressing portion and the counterweight pressing piece form the counterweight fixing clamp.

[0012] In the present invention, the first counterweight pressing portion and the second counterweight pressing portion are both integrally formed.

[0013] In the present invention, the counterweight pressing locking block is provided with a counterweight pressing through hole which passes through the counterweight pressing locking block from left to right and a counterweight bolt head positioning groove which is connected to one end of the counterweight pressing through hole. The screw end of the counterweight fixing bolt passes through the counterweight pressing through hole of the counterweight pressing locking block and the pressing piece adjusting long hole of the counterweight pressing piece and then cooperates with the counterweight fixing nut thread.

[0014] In the present invention, a counterweight bolt head positioning groove communicating with one end of the counterweight pressing through hole is provided on the counterweight pressing locking block, and the counterweight bolt head positioning groove is configured to limit the rotation of the counterweight fixing bolt.

[0015] In the present invention, the counterweight module includes a counterweight array and a front counterweight pulley and a rear counterweight pulley. The counterweight frames of the two counterweight modules are fixed together. A counterweight pulley installation space is provided on the upper part of the counterweight frame. The front counterweight pulley and the rear counterweight pulley are arranged from front to back in the counterweight pulley installation space. The front counterweight pulley and the rear counterweight pulley are rotatably connected to the counterweight frame.

[0016] In the present invention, the counterweight frames of the two counterweight modules are fixed together by a combination of a first connecting member and a second connecting member, wherein the first connecting member is connected to the upper part of the counterweight frame of the two counterweight modules, and the first connecting member is located between the front counterweight rope pulley and the rear counterweight rope pulley; the second connecting member is connected to the lower part of the counterweight frame of the two counterweight modules.

[0017] In the present invention, each counterweight installation space has a counterweight fixing assembly at both the front and rear ends.

[0018] The beneficial effects of the present invention are as follows: the present invention is provided with a counterweight fixing assembly. After the counterweight fixing bolt of the counterweight fixing assembly is loosened, the counterweight fixing assembly can move up and down along the counterweight limiting portion, so that the counterweight pressing member can move down and press on the top surface of the uppermost counterweight block to press the counterweight block, or the counterweight pressing member can move upward away from the uppermost counterweight block to release the corresponding counterweight block. This structure does not require a through hole to be opened on the counterweight frame for cooperating with the counterweight fixing assembly, so that the installation of the counterweight fixing assembly will not affect the structural strength of the counterweight frame, effectively ensuring the overall structural stability of the counterweight frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 It is a 4:1 double-row counterweight structure. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the installation of the counterweight fixing assembly;

[0022] Figure 3 This is an exploded schematic diagram of the counterweight fixing assembly;

[0023] Figure 4 It is a 4:1 double-row counterweight structure. Figure 1 ;

[0024] Figure 5 A perspective view of two counterweight frames arranged side by side;

[0025] Figure 6 This is the left view of the counterweight frame. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] Reference Figure 1-6 A 4:1 double-row counterweight frame structure used in an ultra-large load freight elevator includes two counterweight modules 10 arranged side by side. The counterweight module 10 includes a counterweight frame 1, a counterweight array, and a front counterweight rope pulley 2 and a rear counterweight rope pulley 3. The counterweight frames 1 of the two counterweight modules 10 are fixed together. A counterweight rope pulley installation space is provided on the upper portion of the counterweight frame 1. The front counterweight rope pulley 2 and the rear counterweight rope pulley 3 are arranged from front to rear in the counterweight rope pulley installation space. The front counterweight rope pulley 2 and the rear counterweight rope pulley 3 are rotatably connected to the counterweight frame 1.

[0030] The lower part of the counterweight frame 1 is provided with at least two counterweight installation spaces 20 arranged from left to right, and a counterweight array is installed in each counterweight installation space 20, and each counterweight array includes a plurality of counterweight blocks 4 stacked from top to bottom, and the front and rear ends of the counterweight blocks 4 are provided with positioning protrusions 41, and the front and rear ends of the counterweight installation space 20 are provided with two left and right distributed counterweight limiting parts 101, and the two left and right corresponding counterweight limiting parts 101 form a counterweight positioning groove 102 for the positioning protrusion 41 to be inserted into and positioned for cooperation. The front and rear ends of the counterweight installation space 20 are provided with There is the positioning groove 102; the bottom surface of the lowest counterweight block 4 is abutted on the counterweight frame 1, and the counterweight array is pressed and fixed by at least one counterweight fixing assembly 5, and the counterweight fixing assembly 5 includes a counterweight pressing member 51 for pressing on the top surface of the uppermost counterweight block 4 and two counterweight pressing locking blocks 52 respectively arranged at the front and rear ends of the counterweight pressing member 51, and the counterweight pressing locking block 52 is fixed to the counterweight pressing member 51 through a counterweight bolt assembly 53, and a counterweight fixing clamp clamped on the counterweight limiting portion 101 is formed between the counterweight pressing locking block 52 and the counterweight pressing member 51.

[0031] Furthermore, the counterweight bolt assembly 53 includes at least a counterweight fixing bolt 531, a counterweight fixing flat washer, a counterweight fixing spring washer, and a counterweight fixing nut. After loosening the counterweight fixing bolt 531, the counterweight fixing assembly 5 can move up and down along the counterweight limiting portion 101, thereby allowing the counterweight pressing member 51 to move downward to press on the top surface of the topmost counterweight block 4 to compress the counterweight block 4, or to move upward away from the topmost counterweight block 4 to release the corresponding counterweight block 4. This structure eliminates the need to provide a through hole in the counterweight frame 1 for the counterweight fixing assembly 5. Therefore, installing the counterweight fixing assembly 5 does not affect the structural strength of the counterweight frame 1, effectively ensuring the overall structural stability of the counterweight frame 1.

[0032] As a preferred embodiment, the counterweight pressing member 51 is made of angle steel, and is provided with two pressing member adjustment long holes 511 extending from front to back in the length direction. Each pressing member adjustment long hole 511 is connected to a counterweight pressing locking block 52 through a counterweight bolt assembly 53. The counterweight pressing locking block 52 includes a pressing locking block body 521, a first counterweight pressing portion 522 for abutting against the counterweight pressing piece 51, and a second counterweight pressing portion 523 for abutting against the counterweight limiting portion 101. The first counterweight pressing portion 522, the pressing locking block body 521 and the second counterweight pressing portion 523 are connected and form a stepped structure, and the second counterweight pressing portion 523 and the counterweight pressing piece 51 form the counterweight fixing clamp; the first counterweight pressing portion 522 and the second counterweight pressing portion 523 are both integrally formed, wherein the first counterweight pressing portion 522 is located on a transverse end face of the pressing locking block body 521, and the second counterweight pressing portion 523 is located on a longitudinal end face of the pressing locking block body 521, and the transverse end face and the longitudinal end face are perpendicular to each other. By connecting the first counterweight pressing part 522, the pressing locking block body 521 and the second counterweight pressing part 523 to form a stepped structure, the pressing locking block body 521 can at least not contact the counterweight pressing member 51, so that the counterweight pressing locking block 52 can be better fixed on the counterweight limiting part 101.

[0033] Furthermore, the counterweight pressing lock block 52 is provided with a counterweight pressing through hole that passes through the counterweight pressing lock block 52 from left to right, and a counterweight bolt head positioning groove 524 that connects to one end of the counterweight pressing through hole. The screw end of the counterweight fixing bolt 531 passes through the counterweight pressing through hole of the counterweight pressing lock block 52, the pressing member adjustment slot 511 of the counterweight pressing member 51, the counterweight fixing flat washer, and the counterweight fixing spring washer, and then engages with the counterweight fixing nut. The counterweight bolt head positioning groove 524 is configured to limit the rotation of the counterweight fixing bolt 531, so that workers can tighten the counterweight fixing nut. In addition, after loosening the counterweight fixing bolt 531, the counterweight pressing lock block 52 can be adjusted forward and backward along the pressing member adjustment slot 511 to better cooperate with the counterweight limiter 101.

[0034] As a preferred embodiment, the counterweight frames 1 of the two counterweight modules 10 are fixed together by a combination of a first connecting member 6 and a second connecting member 7, wherein the first connecting member 6 is connected to the upper part of the counterweight frame 1 of the two counterweight modules 10, and the first connecting member 6 is located between the front counterweight rope pulley 2 and the rear counterweight rope pulley 3; the second connecting member 7 is connected to the lower part of the counterweight frame 1 of the two counterweight modules 10.

[0035] In this embodiment, the counterweight frame 1 includes two counterweight columns 11, an upper splint assembly, a middle splint assembly, a lower splint assembly and a counterweight isolation column 12, the upper splint assembly includes two upper splint halves 13 located on the left and right sides of the counterweight column 11, the front and rear ends of the upper splint halves 13 are fixedly connected to the two counterweight columns 11 respectively, and a counterweight wheel avoidance space is formed between the two upper splint halves 13; the upper end of the counterweight column 11 is provided with a plurality of counterweight column screw holes arranged from top to bottom, and the left and right ends of the upper splint halves 13 are provided with a plurality of first upper splint through holes penetrating from front to back, and the plurality of first upper splint through holes are arranged from top to bottom, each of the first upper splint through holes corresponds to a counterweight column screw hole, and the first upper splint through holes are inserted from a first upper splint bolt threadedly connected to the counterweight column screw hole, and the first upper splint bolt fixes the upper splint half 13 to the counterweight column 11.

[0036] Furthermore, the inner sides of the front and rear ends of the upper splint half 13 are welded with an upper splint connecting plate 14 extending downwardly from the lower part, and the upper part of the upper splint connecting plate 14 is provided with a plurality of second upper splint through holes corresponding to the first upper splint through holes, and the screw ends of the first upper splint bolts pass through the first upper splint through holes and the second upper splint through holes in sequence and then threadedly engage with the screw holes on the counterweight column, so that the first upper splint bolts can be effectively connected to the counterweight column 11; the lower part of the upper splint connecting plate 14 is provided with a plurality of upper splint reinforcement connecting holes arranged from top to bottom, each upper splint reinforcement through hole corresponds to a screw hole on the counterweight column, and the upper splint reinforcement connecting hole is interspersed with a second upper splint bolt threadedly connected to the screw hole on the counterweight column. Using the second upper splint bolt to fix the upper splint connecting plate 14 can reduce the shear stress acting on the first upper splint bolt to a certain extent, thereby improving the structural stability of the counterweight frame 1.

[0037] In this embodiment, the front counterweight rope pulley 2 and the rear counterweight rope pulley 3 both include a counterweight rope shaft and a counterweight rope body rotatably mounted on the counterweight rope shaft. The counterweight rope shaft of the front counterweight rope pulley 2 and the counterweight rope shaft of the rear counterweight rope pulley 3 are both abutted against the bottom of the two upper clamping plate halves 13. The upper clamping plate halves 13 are provided with counterweight U-bolts 15 for fixing the counterweight rope shaft. The upper part of the front counterweight rope pulley 2 and the upper part of the rear counterweight rope pulley 3 both extend into the upper counterweight rope pulley avoidance space.

[0038] In this embodiment, the middle clamping plate assembly is located below the upper clamping plate assembly, and a lower counterweight rope pulley avoidance space is formed between the middle clamping plate assembly and the upper clamping plate assembly. The upper part of the front counterweight rope pulley 2 and the lower part of the rear counterweight rope pulley 3 both extend into the lower counterweight rope pulley avoidance space. The upper counterweight rope pulley avoidance space and the lower counterweight rope pulley avoidance space constitute the counterweight rope pulley installation space.

[0039] Furthermore, the center plate assembly includes two center plate halves 16, which are respectively located on the left and right sides of the counterweight column 11, and the front and rear ends of the center plate halves 16 are fixedly connected to the two counterweight columns 11 by bolt connection.

[0040] In this embodiment, the lower splint assembly includes two lower splint halves 17, which are respectively located on the left and right sides of the counterweight column 11, and the front and rear ends of the lower splint halves 17 are respectively fixedly connected to the counterweight column 11 by bolts. Furthermore, the lower splint assembly also includes a plurality of lower splint connection units 19 connected to the two lower splint halves 17, and the plurality of lower splint connection units 19 are arranged from front to back, and each lower splint connection unit 19 includes a lower splint connection seat 191 and a lower splint connection plate 192, and the lower splint connection seat 191 is inserted between the two lower splint halves 17 and fixedly connected to the two lower splint halves 17 by bolt connection; the lower splint connection plate 192 is located at the bottom of the two lower splint halves 17, and the middle part of the lower splint connection plate 192 is fixedly connected to the lower splint connection seat 191 by bolt connection, and the left and right ends are fixedly connected to the bottom surfaces of the two lower splint halves 17 by bolt connection, so as to utilize the lower splint connection unit 19 to enhance the installation stability of the two lower splint halves 17. In addition, the two adjacent lower splint connection units 19 on the left and right are connected to a second connecting member 7 together, and the left and right ends of the lower splint connection unit 19 respectively extend to the bottom of the two lower splint halves 17 of the same lower splint assembly, and the left and right ends of the second connecting member 7 are respectively connected to the two lower splint connection units 19 by bolt connection, so that the counterweight frames 1 of the two counterweight modules 10 are combined together to ensure the connection quality between the two counterweight modules 10.

[0041] In this embodiment, there are at least two counterweight isolation columns 12 and they are arranged from front to back between the two counterweight columns 11. The lower end of the counterweight column 11 extends between the two lower plywood halves 17, and the left and right sides of the lower end of the counterweight isolation column 12 are respectively fixedly connected to the two counterweight lower plywood halves 17 by bolt connection; the upper end of the counterweight column 11 extends between the two middle plywood halves 16, and the left and right sides of the upper end of the counterweight column 11 are respectively fixedly connected to the two middle plywood halves 16.

[0042] In this embodiment, the counterweight installation space 20 is formed between the counterweight isolation column 12 and the counterweight column 11, and between two adjacent counterweight isolation columns 12 in front and behind. The counterweight limiting portion 101 is provided on the counterweight isolation column 12 and the counterweight column 11. There is a counterweight fixing component 5 at the front and rear ends of each counterweight installation space 20, so that each counterweight array can be pressed and fixed by two counterweight fixing components 5 to ensure the installation quality of the counterweight array.

[0043] In this embodiment, each of the counterweight columns 11 is provided with a counterweight mounting plate 18 at the top and bottom. The upper counterweight mounting plate 18 is fixedly connected to the two upper clamping plate halves 13 located on the same counterweight frame 1 by means of bolt connection. The lower counterweight mounting plate 18 is fixedly connected to the two lower clamping plate halves 17 located on the same counterweight frame 1 by means of bolt connection, thereby improving the installation quality of the upper clamping plate halves 13 and the lower clamping plate halves 17. Each counterweight mounting plate 18 is provided with a counterweight guide shoe 9 for cooperating with the counterweight guide rail.

[0044] In this embodiment, two counterweight rope stop assemblies are provided on the counterweight frame 1, and the two counterweight rope stop assemblies correspond to the front counterweight rope pulley 2 and the rear counterweight rope pulley 3 located on the same counterweight frame 1, respectively. The counterweight rope stop assembly includes a front counterweight rope stop member 81 corresponding to the front side of the counterweight wheel body, a rear counterweight rope stop member 82 corresponding to the rear side of the counterweight wheel body, and a lower counterweight rope stop member 83 corresponding to the lower side of the counterweight wheel body, wherein the front and rear ends of the front counterweight rope stop member 81 and the rear counterweight rope stop member 82 are respectively connected to the bottom of the two upper splint half bodies 13, so that ... front counterweight rope stop member 81 and the rear counterweight rope stop member 82. The rope stop member 81 and the rear counterweight rope stop member 82 can prevent the traction rope from slipping off the counterweight wheel body while strengthening the connection stability of the two upper clamping plate halves 13; the upper end of the lower counterweight rope stop member 83 is arranged close to the lower side of the counterweight wheel body, and the lower end is inserted between the two middle clamping plate halves 16, and the left and right sides of the lower end of the lower counterweight rope stop member 83 are fixedly connected to the two middle clamping plate halves 16 respectively, so that the lower counterweight rope stop member 83 can prevent the traction rope from slipping off the counterweight wheel body while strengthening the connection stability between the two middle clamping plate halves 16.

[0045] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the scope of protection of the present invention.

Claims

1. A 4:1 double-row counterweight frame structure for use on an oversized freight elevator, comprising two counterweight modules (10) arranged side by side on the left and right, wherein the counterweight module (10) comprises a counterweight frame (1); a lower portion of the counterweight frame (1) is provided with at least two counterweight installation spaces (20) arranged from left to right, a counterweight array is installed in each counterweight installation space (20), each counterweight array comprises a plurality of counterweight blocks (4) stacked from top to bottom, the front and rear ends of the counterweight blocks (4) are provided with positioning protrusions (41), the front and rear ends of the counterweight installation space (20) are provided with two counterweight limiting portions (101) distributed on the left and right, the two corresponding counterweight limiting portions (101) on the left and right forming a counterweight positioning groove (102) for the positioning protrusion (41) to be inserted and positioned for cooperation; and characterized in that: The bottom surface of the lowest counterweight block (4) abuts against the counterweight frame (1), and the counterweight array is pressed and fixed by at least one counterweight fixing assembly (5), and the counterweight fixing assembly (5) includes a counterweight pressing member (51) for pressing against the top surface of the highest counterweight block (4) and two counterweight pressing locking blocks (52) respectively provided at the front and rear ends of the counterweight pressing member (51), the counterweight pressing locking blocks (52) are fixed to the counterweight pressing member (51) by a counterweight bolt assembly (53), and a counterweight fixing clamping opening clamped on the counterweight limiting portion (101) is formed between the counterweight pressing locking block (52) and the counterweight pressing member (51).

2. The 4:1 double-row counterweight structure for an ultra-large freight elevator according to claim 1 is characterized in that: The counterweight bolt assembly (53) comprises at least a counterweight fixing bolt (531) and a counterweight fixing nut; after the counterweight fixing bolt (531) is loosened, the counterweight fixing assembly (5) can move up and down along the counterweight limiting portion (101).

3. The 4:1 double-row counterweight structure for an ultra-large freight elevator according to claim 2 is characterized in that: The counterweight pressing member (51) is provided with two pressing member adjustment long holes (511) extending from front to back in the longitudinal direction, and each pressing member adjustment long hole (511) is connected to a counterweight pressing locking block (52) via a counterweight bolt assembly (53).

4. The 4:1 double-row counterweight structure for an ultra-large freight elevator according to claim 3 is characterized in that: The counterweight pressing locking block (52) comprises a pressing locking block body (521), a first counterweight pressing portion (522) for abutting against the counterweight pressing member (51), and a second counterweight pressing portion (523) for abutting against the counterweight limiting portion (101), wherein the first counterweight pressing portion (522), the pressing locking block body (521), and the second counterweight pressing portion (523) are connected to form a stepped structure, and the second counterweight pressing portion (523) and the counterweight pressing member (51) form the counterweight fixing clamp.

5. The 4:1 double-row counterweight structure for an ultra-large freight elevator according to claim 4 is characterized in that: The first counterweight pressing portion (522) and the second counterweight pressing portion (523) are both integrally formed.

6. The 4:1 double-row counterweight structure for an ultra-large freight elevator according to claim 4 is characterized in that: The counterweight pressing locking block (52) is provided with a counterweight pressing through hole which passes through the counterweight pressing locking block (52) from left to right and a counterweight bolt head positioning groove (524) which is connected to one end of the counterweight pressing through hole. The screw end of the counterweight fixing bolt (531) passes through the counterweight pressing through hole of the counterweight pressing locking block (52) and the pressing member adjusting long hole (511) of the counterweight pressing member (51) and then engages with the counterweight fixing nut thread.

7. The 4:1 double-row counterweight structure for an ultra-large freight elevator according to claim 6 is characterized in that: The counterweight pressing locking block (52) is provided with a counterweight bolt head positioning groove (524) communicating with one end of the counterweight pressing through hole, and the counterweight bolt head positioning groove (524) is configured to limit the rotation of the counterweight fixing bolt (531).

8. The 4:1 double-row counterweight structure for an ultra-large freight elevator according to claim 1 is characterized in that: The counterweight module (10) includes a counterweight array and a front counterweight rope pulley (2) and a rear counterweight rope pulley (3). The counterweight frames (1) of the two counterweight modules (10) are fixed together. A counterweight rope pulley installation space is provided on the upper portion of the counterweight frame (1). The front counterweight rope pulley (2) and the rear counterweight rope pulley (3) are arranged from front to rear in the counterweight rope pulley installation space. The front counterweight rope pulley (2) and the rear counterweight rope pulley (3) are rotatably connected to the counterweight frame (1).

9. The 4:1 double-row counterweight structure for an ultra-large freight elevator according to claim 1 is characterized in that: The counterweight frames (1) of the two counterweight modules (10) are fixed together by a combination of a first connecting member (6) and a second connecting member (7), wherein the first connecting member (6) is connected to the upper portion of the counterweight frames (1) of the two counterweight modules (10), and the first connecting member (6) is located between the front counterweight rope pulley (2) and the rear counterweight rope pulley (3); and the second connecting member (7) is connected to the lower portion of the counterweight frames (1) of the two counterweight modules (10).

10. The 4:1 double-row counterweight structure for an ultra-large freight elevator according to claim 1 is characterized in that: Each counterweight installation space (20) has a counterweight fixing assembly (5) at both the front and rear ends.

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