Elevator counterweight fixing device

Abstract

The utility model discloses an elevator counterweight fixing device relates to elevator counterweight technical field, wherein, elevator counterweight fixing device includes base and limit main stem, and a plurality of limit slot are located respectively in the circumferential side of counterweight, and the connecting rod is equipped in the limit slot, and the limit main stem sleeve connects the connecting rod, and the limit main stem is equipped with the connecting plate one end close to the base, and the bottom side wall of limit slot is opened to have the lock -bit sliding slot, and rotates limit main stem, and the connecting plate part enters the lock -bit sliding slot to restrict limit main stem along the axial direction movement, through the limit main stem that sets up around the circumferential side of counterweight and forms the full -enclosing type constraint of the stacked counterweight, and the connecting rod further restricts the radial movement of limit main stem, can synchronous resistance in transportation horizontal inertial force, only need to limit main stem sleeve connects the connecting rod, and rotates a certain angle, and the restriction of limit main stem axial displacement is completed, and the reverse rotation can be unlocked, and the operation is convenient, and can be repeatedly used, and it is convenient to use in the scene of needing frequently transporting counterweight.

Description

Technical Field

[0001] This utility model relates to the field of elevator counterweight technology, and in particular to an elevator counterweight fixing device. Background Technology

[0002] Elevator counterweights are an indispensable and critical safety component in modern elevator systems. Their function is to balance the weight of the elevator car, ensuring smooth, energy-efficient, and safety-compliant operation. Elevator counterweights are typically made of high-density materials such as cast iron, and are heavy on a single unit. They are commonly rectangular in shape, but to ensure stability during elevator operation, the four corners are often designed with grooves to allow them to embed into the installation equipment and prevent swaying.

[0003] Whether in elevator installation and maintenance or counterweight manufacturing, multiple elevator counterweights often need to be transported together. Currently, the common practice in the industry is to directly stack the counterweights on transport vehicles, such as trucks and flatbed trailers, for transshipment. However, this simple stacking method relies solely on the friction generated by gravity and the stability of the contact surfaces for fixation. During transportation, especially under conditions such as bumpy roads, frequent vehicle starts and stops, turns, or emergency braking, the enormous inertial force can easily overcome friction, causing the counterweights between stacked layers to slide relative to each other, misalign, or even shift laterally, potentially leading to personal injury and property damage. Furthermore, for counterweight production, which requires frequent handling between various processes, the ease of fixing the counterweights is also a significant factor. Utility Model Content

[0004] The main purpose of this utility model is to propose an elevator counterweight fixing device, which aims to improve the safety of counterweight transportation.

[0005] To achieve the above objectives, the elevator counterweight fixing device proposed in this utility model includes:

[0006] The base includes a stacking surface for stacking counterweights, and the stacking surface has multiple limiting grooves, which are respectively located on the periphery of the counterweights.

[0007] A limiting main rod is provided, and a connecting rod is provided in the limiting groove. The limiting main rod is sleeved with the connecting rod. Multiple limiting main rods are located on the periphery of the counterweight and abut against the counterweight.

[0008] The limiting main rod has a connecting plate at one end near the base, and the bottom side wall of the limiting groove has a locking groove. When the limiting main rod is rotated, the connecting plate enters the locking groove to restrict the movement of the limiting main rod in the axial direction.

[0009] In one embodiment, the top end of the connecting rod is located within the limiting groove, and the distance between the top end of the connecting rod and the stacking surface is greater than the thickness of the connecting plate.

[0010] In one embodiment, the cross-section of the locking groove is fan-shaped;

[0011] The limiting groove is provided with locking slide grooves on the side walls on both sides. When the limiting main rod is rotated, the two ends of the connecting plate enter the two locking slide grooves on the opposite sides respectively.

[0012] In one embodiment, the height of the locking groove corresponds to the thickness of the connecting plate to clamp the connecting plate.

[0013] In one embodiment, the elevator counterweight fixing device further includes a limiting auxiliary rod, and the end of the limiting main rod away from the base is threadedly connected to the limiting auxiliary rod.

[0014] In one embodiment, the limiting auxiliary rod includes a connecting sleeve and a threaded rod, the connecting sleeve and the threaded rod are coaxial and fixedly connected, and the limiting main rod is threadedly connected to the threaded rod;

[0015] The connecting sleeve has a threaded connection hole on the side away from the threaded rod, for threaded connection to the threaded rod of the other limiting auxiliary rod.

[0016] In one embodiment, the elevator counterweight fixing device further includes a fastening block, which is sleeved on the limiting auxiliary rod and / or the limiting main rod. The shape of the fastening block is adapted to the side wall shape of the counterweight block, and the side of the fastening block near the counterweight block is in close contact with the counterweight block.

[0017] In one embodiment, the outer diameter of the connecting sleeve is the same as the outer diameter of the limiting main rod.

[0018] In one embodiment, there are multiple fastening blocks, which are sleeved on the coaxial limiting auxiliary rod and / or limiting main rod to adapt to the stacking height of the counterweight blocks.

[0019] In one embodiment, the elevator counterweight fixing device further includes a reinforcing plate, which is parallel to the stacking surface and has multiple insertion holes. The multiple insertion holes are corresponding to multiple limiting main rods on the periphery of the counterweight for insertion of the limiting main rods or the limiting auxiliary rods.

[0020] The technical solution of this utility model forms a fully enclosed constraint on the stacked counterweights by cooperating with the limiting main rod arranged around the periphery of the counterweight and the limiting groove of the base. The limiting main rod directly abuts against the side wall of the groove of the counterweight, and the connecting rod further restricts the radial movement of the limiting main rod, which can simultaneously resist the horizontal inertial force during transportation. Moreover, during installation, it is only necessary to sleeve the limiting main rod onto the connecting rod and rotate it at a certain angle, and the connecting plate will slide into the locking groove to complete the restriction of the axial displacement of the limiting main rod. During disassembly, it can be unlocked by simply rotating in the opposite direction. The operation is convenient and reusable, which is convenient for use in scenarios where counterweights need to be transported frequently. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of an embodiment of the elevator counterweight fixing device provided by this utility model;

[0023] Figure 2 A schematic diagram of the assembly structure of the base and the limiting main rod;

[0024] Figure 3 This is a schematic diagram of another embodiment of the elevator counterweight fixing device provided by this utility model.

[0025] Explanation of icon numbers:

[0026] 1. Base; 11. Stacking surface; 12. Limiting groove; 13. Locking slide; 2. Counterweight; 3. Limiting main rod; 31. Connecting rod; 32. Connecting plate; 4. Limiting auxiliary rod; 41. Connecting sleeve; 42. Threaded rod; 411. Threaded connection hole; 5. Fastening block; 6. Reinforcing plate; 61. Insertion hole.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] The elevator counterweight 2 is an indispensable key safety component in modern elevator systems. Its function is to balance the weight of the car, ensuring smooth, energy-efficient, and safety-compliant elevator operation. Elevator counterweight 2 is typically made of high-density materials such as cast iron, and has a large individual weight. It is commonly rectangular in shape, but to ensure stability during elevator operation, the four corners of the counterweight 2 are often designed with grooves, allowing it to embed into the installation equipment and prevent swaying.

[0032] Whether in elevator installation and maintenance or in the manufacturing of counterweight 2, it is often necessary to transport multiple elevator counterweight 2 together. Currently, the common practice in the industry is to directly stack the counterweight 2 on transport vehicles, such as trucks or flatbed trailers, for transfer. However, this simple stacking and transportation method relies solely on the frictional force generated by gravity and the stability of the contact surfaces for fixation. During transportation, especially under conditions such as bumps due to poor road conditions, frequent vehicle starts and stops, turns, or emergency braking, the huge inertial force can easily overcome the frictional force, causing the counterweight 2 between stacked layers to slide relative to each other, misalign, or even shift laterally, which can easily cause personal injury and property damage. Furthermore, for the production of counterweight 2, it is necessary to frequently move the counterweight 2 between various processes, which also places certain requirements on the ease of fixing the counterweight 2.

[0033] This utility model proposes an elevator counterweight fixing device.

[0034] Please see Figures 1 to 3 In one embodiment of this utility model, the elevator counterweight fixing device includes:

[0035] The base 1 includes a stacking surface 11 for stacking counterweights 2. The stacking surface 11 has multiple limiting grooves 12, which are located on the periphery of the counterweights 2.

[0036] The limiting main rod 3 is provided with a connecting rod 31 in the limiting groove 12. The limiting main rod 3 is sleeved with the connecting rod 31. Multiple limiting main rods 3 are located on the periphery of the counterweight 2 and abut against the counterweight 2.

[0037] The limiting main rod 3 is provided with a connecting plate 32 at one end near the base 1, and the bottom side wall of the limiting groove 12 is provided with a locking slide groove 13. When the limiting main rod 3 is rotated, the connecting plate 32 partially enters the locking slide groove 13 to restrict the movement of the limiting main rod 3 in the axial direction.

[0038] like Figure 1 As shown, to prevent the counterweight 2 from shaking after installation, the four corners of the elevator counterweight 2 are usually recessed to embed the corresponding installation equipment and prevent shaking. Therefore, the limiting rods 3 are located at the grooves at the four corners of the counterweight 2. One limiting rod 3 can simultaneously abut against two mutually perpendicular sides of the counterweight 2 to restrict the movement of the counterweight 2.

[0039] The technical solution of this utility model forms a fully enclosed constraint on the stacked counterweight 2 by the cooperation of the limiting main rod 3 arranged around the periphery of the counterweight 2 and the limiting groove 12 of the base 1. The limiting main rod 3 directly abuts against the side wall of the groove of the counterweight 2, and the connecting rod 31 further restricts the radial movement of the limiting main rod 3, which can simultaneously resist the horizontal inertial force during transportation. Moreover, during installation, it is only necessary to sleeve the limiting main rod 3 onto the connecting rod 31 and rotate it at a certain angle, and the connecting plate 32 will slide into the locking groove 13 to complete the restriction of the axial displacement of the limiting main rod 3. During disassembly, it can be unlocked by simply rotating in the opposite direction. The operation is convenient and reusable, which is convenient for use in scenarios where the counterweight 2 needs to be transported frequently.

[0040] Optionally, the top end of the connecting rod 31 is located within the limiting groove 12, and the distance between the top end of the connecting rod 31 and the stacking surface 11 is greater than the thickness of the connecting plate 32.

[0041] It should be noted that the connecting plate 32 not only cooperates with the locking groove 13 to restrict the axial movement of the limiting main rod 3, but also prevents the limiting main rod 3 from tilting. The connecting plate 32 needs to have a certain length and be greater than the diameter of the limiting main rod 3. Since the limiting main rod 3 abuts against the counterweight 2, if the counterweight 2 is stacked, the limiting groove 12 will be partially blocked by the counterweight 2. Therefore, the limiting main rod 3 cannot be directly inserted into the limiting groove 12. The connecting plate 32 needs to be tilted and inserted partially before being straightened to complete the insertion.

[0042] It is understood that the top end of the connecting rod 31 is located in the limiting groove 12, ensuring that the connecting plate 32 can be inserted into the limiting groove 12 at an angle. The distance between the top end of the connecting rod 31 and the stacking surface 11 is greater than the thickness of the connecting plate 32, ensuring that the connecting plate 32 can be tilted at a certain angle relative to the stacking surface 11, thereby smoothly installing the limiting main rod 3.

[0043] It is understandable that the limiting main rod 3 can be installed first, and then the counterweight 2 can be stacked.

[0044] like Figure 2 As shown, the cross-section of the locking groove 13 is fan-shaped;

[0045] The limiting groove 12 is provided with locking slide grooves 13 on both sides of its opposite sidewalls. When the limiting main rod 3 is rotated, the two ends of the connecting plate 32 enter the two locking slide grooves 13 on opposite sides respectively.

[0046] It is understood that rotating the limiting main rod 3 allows the two ends of the connecting plate 32 to slide synchronously into the depth of the locking groove 13 on both sides. The fan-shaped cross-section of the locking groove 13 provides the maximum rotation angle, realizing forced and precise positioning in a confined space and ensuring the high feasibility of the locking action.

[0047] It should be noted that the limiting main rod 3 is sleeved on the connecting rod 31, and when the limiting main rod 3 is rotated, the connecting plate 32 rotates around the connecting rod 31.

[0048] Optionally, the height of the locking groove 13 corresponds to the thickness of the connecting plate 32 to clamp the connecting plate 32.

[0049] It is understandable that when the connecting plate 32 is rotated into position within the locking groove 13, both ends of the connecting plate 32 are tightly clamped and fixed by the opposite side walls of the locking groove 13, preventing the limiting main rod 3 from tilting or swaying.

[0050] Optionally, the elevator counterweight fixing device further includes a limiting auxiliary rod 4, and the end of the limiting main rod 3 away from the base 1 is threadedly connected to the limiting auxiliary rod 4.

[0051] It should be noted that the number of counterweights 2 transported during the transportation process may vary, and the stack height of the resulting stack will be different depending on the number of counterweights 2 stacked. However, the length of the limiting rod 3 is fixed, and the stack height of the counterweights 2 that can be adapted is limited. Therefore, it is necessary to reduce the number of items transported at one time or replace the limiting rod 3 with one of different lengths for fixation.

[0052] like Figure 1 and Figure 3 As shown, by directly connecting the limiting auxiliary rod 4 to the limiting main rod 3, the adaptation height can be increased, more of the counterweights 2 can be transported, and the effective fixing of the counterweights 2 can be ensured.

[0053] The threaded connection and fixation can be completed by aligning the limiting auxiliary rod 4 with the limiting main rod 3, inserting it, and rotating it. The operation is convenient. It can be understood that the limiting main rod 3 is hollow and has a thread on the inner wall of one end near the limiting auxiliary rod 4 so as to thread it with the limiting auxiliary rod 4.

[0054] Optionally, the limiting auxiliary rod 4 includes a connecting sleeve 41 and a threaded rod 42, the connecting sleeve 41 and the threaded rod 42 are coaxial and fixedly connected, and the limiting main rod 3 is threadedly connected to the threaded rod 42;

[0055] The connecting sleeve 41 has a threaded connection hole 411 on the side away from the threaded rod 42, which is used to thread the threaded rod 42 of the other limiting auxiliary rod 4.

[0056] It is understood that the threaded rod 42 of a single limiting auxiliary rod 4 can be screwed into the limiting main rod 3, and the threaded connection hole 411 at the end of its connecting sleeve 41 can be screwed into the threaded rod 42 of another limiting auxiliary rod 4. Through standardized interfaces, operators can stack and connect any number of limiting auxiliary rods 4 as needed to adapt to stacking different numbers of counterweights 2.

[0057] Optionally, the elevator counterweight fixing device further includes a fastening block 5, which is sleeved on the limiting auxiliary rod 4 and / or the limiting main rod 3. The shape of the fastening block 5 is adapted to the side wall shape of the counterweight 2, and the fastening block 5 is in close contact with the counterweight 2 on one side.

[0058] It is understood that the limiting rod 3 and the counterweight 2 are in line contact or point contact. The limiting rod is subjected to concentrated force. The fastening block 5, through its shape that is precisely adapted to the side wall of the counterweight 2 and its large-area contact, evenly diffuses the lateral pressing force transmitted by the limiting rod to the entire contact area of ​​the counterweight 2, and generates a greater frictional force than point contact or line contact.

[0059] It should be noted that due to different elevator models, the size of the counterweight 2 will also be different. When the size of the counterweight 2 changes, the limiting main rod 3 in the original position may not be able to effectively abut against the side wall of the counterweight 2, thus failing to effectively limit the counterweight 2.

[0060] It is understandable that by fitting the fastening blocks 5 of different sizes, the adaptation of the configuration blocks of different sizes can be completed without changing the position of the limiting main rod 3.

[0061] In one embodiment, the fastening block 5 is sleeved on the limiting auxiliary rod 4.

[0062] In another embodiment, the fastening block 5 is sleeved on the limiting main rod 3.

[0063] In another embodiment, the fastening block 5 is simultaneously sleeved on the limiting main rod 3 and the limiting auxiliary rod 4.

[0064] It is understood that the fitting position of the fastening block 5 can be set according to actual needs. For example, when the number of counterweight blocks 2 is small, the limiting auxiliary rod 4 is not needed to limit the counterweight blocks 2. Therefore, it is only necessary to fit the fastening block 5 onto the limiting main rod 3.

[0065] Optionally, the outer diameter of the connecting sleeve 41 is the same as the outer diameter of the limiting main rod 3.

[0066] It is understood that the outer diameter of the connecting sleeve 41 is the same as the outer diameter of the limiting main rod 3, so as to ensure that the fastening block 5 of the same specification can be adapted to the connecting sleeve 41 and the limiting main rod 3.

[0067] Optionally, there may be multiple fastening blocks 5, which are sleeved on the coaxial limiting auxiliary rod 4 and / or limiting main rod 3 to adapt to the stacking height of the counterweight blocks 2.

[0068] It should be noted that the fastening blocks 5 can be stacked to adapt to different height requirements, and the number of stacked counterweight blocks 2 can be adjusted accordingly.

[0069] Optionally, the elevator counterweight fixing device further includes a reinforcing plate 6, which is parallel to the stacking surface 11 and has multiple insertion holes 61. The multiple insertion holes 61 are correspondingly arranged with the multiple limiting main rods 3 on the periphery of the counterweight 2 to insert the limiting main rods 3 or the limiting auxiliary rods 4.

[0070] It should be noted that the side frame formed solely by the limiting main rod 3 is at risk of frame deformation when resisting the overall torsion or eccentric impact load of the stacked body.

[0071] It is understood that the reinforcing plate 6 can connect the limiting main rod 3 or the limiting auxiliary rod 4 located in different positions of the counterweight block 2 to form an overall frame, thereby restricting the movement of the limiting main rod 3 and the limiting auxiliary rod 4 in their radial direction and improving the shear and torsional stiffness of the entire frame.

[0072] In some embodiments, the number of the insertion holes 61 is four, and the number of the limiting main rods 3 is correspondingly four.

[0073] It should be noted that the reinforcing plate 6 can be placed on top of the stack of counterweights 2 or sandwiched between two adjacent counterweights 2, both of which can achieve the effect of reinforcement. Furthermore, the number of reinforcing plates 6 can be placed according to actual needs. For example, the reinforcing plates 6 can be set in the middle and at the top of the stack to improve the overall structural strength.

[0074] It is understood that, depending on the placement of the reinforcing plate 6, the reinforcing plate 6 may be inserted into the limiting main rod 3 or the limiting auxiliary rod 4.

[0075] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. An elevator counterweight fixing device, characterized in that, include: The base includes a stacking surface for stacking counterweights, and the stacking surface has multiple limiting grooves, which are respectively located on the periphery of the counterweights. A limiting main rod is provided, and a connecting rod is provided in the limiting groove. The limiting main rod is sleeved with the connecting rod. Multiple limiting main rods are located on the periphery of the counterweight and abut against the counterweight. The limiting main rod has a connecting plate at one end near the base, and the bottom side wall of the limiting groove has a locking groove. When the limiting main rod is rotated, the connecting plate enters the locking groove to restrict the movement of the limiting main rod in the axial direction.

2. The elevator counterweight fixing device as described in claim 1, characterized in that, The top end of the connecting rod is located within the limiting groove, and the distance between the top end of the connecting rod and the stacking surface is greater than the thickness of the connecting plate.

3. The elevator counterweight fixing device as described in claim 2, characterized in that, The cross-section of the locking groove is fan-shaped; The limiting groove is provided with locking slide grooves on the side walls on both sides. When the limiting main rod is rotated, the two ends of the connecting plate enter the two locking slide grooves on the opposite sides respectively.

4. The elevator counterweight fixing device as described in claim 3, characterized in that, The height of the locking groove corresponds to the thickness of the connecting plate, so as to clamp the connecting plate.

5. The elevator counterweight fixing device as described in any one of claims 1 to 4, characterized in that, The elevator counterweight fixing device also includes a limiting auxiliary rod, and the end of the limiting main rod away from the base is threadedly connected to the limiting auxiliary rod.

6. The elevator counterweight fixing device as described in claim 5, characterized in that, The limiting auxiliary rod includes a connecting sleeve and a threaded rod, the connecting sleeve and the threaded rod are coaxial and fixedly connected, and the limiting main rod is threadedly connected to the threaded rod; The connecting sleeve has a threaded connection hole on the side away from the threaded rod, for threaded connection to the threaded rod of the other limiting auxiliary rod.

7. The elevator counterweight fixing device as described in claim 6, characterized in that, The elevator counterweight fixing device also includes a fastening block, which is sleeved on the limiting auxiliary rod and / or the limiting main rod. The shape of the fastening block is adapted to the side wall shape of the counterweight block, and the side of the fastening block near the counterweight block is in close contact with the counterweight block.

8. The elevator counterweight fixing device as described in claim 7, characterized in that, The outer diameter of the connecting sleeve is the same as the outer diameter of the limiting main rod.

9. The elevator counterweight fixing device as described in claim 8, characterized in that, The number of fastening blocks is multiple, and the multiple fastening blocks are sleeved on the coaxial limiting auxiliary rod and / or limiting main rod to adapt to the stacking height of the counterweight blocks.

10. The elevator counterweight fixing device as described in claim 9, characterized in that, The elevator counterweight fixing device also includes a reinforcing plate, which is parallel to the stacking surface and has multiple insertion holes. The multiple insertion holes are corresponding to the multiple limiting main rods on the periphery of the counterweight, so as to insert the limiting main rods or the limiting auxiliary rods.

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