Steel fixing device for elevator counterweight die casting

Abstract

The utility model discloses a kind of steel bar fixing devices for elevator counterweight block die casting, it is related to elevator counterweight block technical field, wherein, steel bar fixing devices for elevator counterweight block die casting include the device includes first support piece and second support piece, first support piece has the plug-in board with plug-in recess and the support foot stand of outwardly inclined extension, constitute triangular support structure, for fixing steel bar end portion and prevent tilting when die casting, second support piece is made of mutually perpendicular first sleeve and second sleeve, for fixing longitudinal and horizontal cross steel bar node, can effectively resist the impact of flowing material in die casting process, prevent steel bar displacement or float, ensure that steel bar network is located in design stress area, to ensure the structural strength and anti-cracking performance of die casting counterweight block, and support external pre-assembled steel skeleton, significantly improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of elevator counterweight technology, and in particular to a steel bar fixing device for die casting elevator counterweight. Background Technology

[0002] The elevator counterweight is a crucial component of the elevator system. Its core function is to balance the weight of the car and its load, significantly reducing the load on the elevator drive motor, thereby achieving energy savings, smooth operation, and ensuring safety. The reliability of its performance directly affects the operational efficiency and safety of the entire elevator system.

[0003] Currently, most elevator counterweights are constructed using reinforced concrete. In such structures, to withstand the impacts, vibrations, and internal stresses experienced during operation and to prevent cracking and breakage, a large number of interwoven steel reinforcement bars must be pre-installed internally. This steel reinforcement network significantly improves the tensile strength of the concrete, ensuring the structural integrity of the counterweight. However, for die-casting systems, the steel bars are difficult to fix relatively to the mold, and the scattered steel bar bundles cannot maintain their pre-set interwoven positions. The steel bars are prone to displacement and floating, preventing them from forming an effective reinforcement network in the designed core stress areas. Utility Model Content

[0004] The main purpose of this utility model is to propose a steel bar fixing device for die casting elevator counterweight blocks, which is designed to facilitate the placement of reinforcing steel bars.

[0005] To achieve the above objectives, the present invention proposes a steel bar fixing device for die-casting elevator counterweights, comprising: The first support member includes an integrally connected plug plate and a support leg. The plug plate has a protruding plug boss on its surface and a recessed plug groove for inserting reinforcing bars. The support frame includes a support part, the support part includes two legs, the two legs extend outward from the plug plate, and both legs are inclined to the side away from the other leg; The second support member includes a first sleeve and a second sleeve, wherein the axis of the first sleeve and the axis of the second sleeve are perpendicular to each other, and the outer side wall of the first sleeve and the outer side wall of the second sleeve are attached to each other to fix two perpendicular steel bars.

[0006] In one embodiment, the plug plate has multiple reinforcing ports that penetrate the plug plate and are spaced apart around the plug boss.

[0007] In one embodiment, the insertion boss is provided with an elastic clamping part, the elastic clamping part including at least one latch, the end of the latch away from the insertion plate enters the insertion groove, and when the reinforcing bar is inserted into the insertion groove, the latch undergoes elastic deformation to clamp the reinforcing bar.

[0008] In one embodiment, the elastic clamping part includes two latches, which are located on opposite sides of the insertion groove.

[0009] In one embodiment, the end of the latch away from the plug plate has an arc-shaped plug surface.

[0010] In one embodiment, the plug plate is provided with a plurality of limiting rods, which extend outward from the plug plate to control the gap between the plug plate and the mold.

[0011] In one embodiment, the limiting rod includes two first rod bodies and one second rod body as shown, with the two first rod bodies located on opposite sides of the plug-in plate; The second rod is located on the side adjacent to the first rod, and the extension direction of the second rod is opposite to the opening direction of the insertion groove.

[0012] In one embodiment, the first sleeve has a first installation notch located on the side of the first sleeve away from the second sleeve, and the first installation notch extends along the axial direction of the first sleeve and penetrates both ends of the first sleeve. The second sleeve has a second installation notch located on the side of the second sleeve away from the first sleeve. The second installation notch extends along the axial direction of the second sleeve and passes through both ends of the second sleeve.

[0013] In one embodiment, the gap of the first installation notch is smaller than the inner diameter of the first sleeve, and the first sleeve partially encloses the reinforcing bar. The gap of the second installation notch is smaller than the inner diameter of the second sleeve, and the second sleeve partially encloses the reinforcing bar.

[0014] In one embodiment, both the inner walls of the first sleeve and the inner walls of the second sleeve are provided with anti-slip textures.

[0015] The technical solution of this utility model fixes the steel bars inside the mold by inserting the first support member at both ends of the steel bar. The first sleeve and the second sleeve on the second support member are perpendicular to each other and can fix the crisscrossing steel bars together, effectively resisting the impact of flowing materials during the die casting process, preventing the steel bars from shifting or floating, and ensuring that the steel bar reinforcement network is located in the designed core stress area. The two legs extend outward and form a stable triangular support structure with the bottom surface of the mold. In addition, during the die casting process, the two legs will tilt outward to prevent the support part from tilting due to the downward pressure, so that the steel bars are in the preset position, thereby ensuring the structural strength and crack resistance of the final product. Moreover, the steel bars can be put into the mold after external assembly, which improves production efficiency. Attached Figure Description

[0016] 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.

[0017] Figure 1 A schematic diagram of an embodiment of the elevator counterweight block die-casting steel bar fixing device provided by this utility model; Figure 2 This is a structural schematic diagram of the first support component; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the second support component; Figure 5 A schematic diagram of the assembly structure of the elevator counterweight block die-casting steel bar fixing device provided by this utility model.

[0018] Explanation of icon numbers: 1. First support component; 11. Insert plate; 111. Insert boss; 1111. Insert groove; 112. Reinforcing opening; 113. Lock; 1131. Arc-shaped insert surface; 114. Limiting rod; 1141. First rod body; 1142. Second rod body; 121. Support part; 1211. Support leg; 2. Second support component; 21. First sleeve; 211. First mounting notch; 22. Second sleeve; 221. Second mounting notch; 23. Anti-slip texture; 31. First reinforcing bar; 32. Second reinforcing bar; 4. Mold.

[0019] 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

[0020] 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.

[0021] 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.

[0022] 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.

[0023] The elevator counterweight is a crucial component of the elevator system. Its core function is to balance the weight of the car and its load, significantly reducing the load on the elevator drive motor, thereby achieving energy savings, smooth operation, and ensuring safety. The reliability of its performance directly affects the operational efficiency and safety of the entire elevator system.

[0024] Currently, most elevator counterweights are constructed using reinforced concrete. In such structures, to withstand the impacts, vibrations, and internal stresses experienced during operation and to prevent cracking and breakage, a large number of interwoven steel reinforcement bars must be pre-installed internally. This steel reinforcement network significantly improves the tensile strength of the concrete, ensuring the structural integrity of the counterweight. However, for die-casting systems, the steel bars are difficult to fix relatively to the mold, and the scattered steel bar bundles cannot maintain their pre-set interwoven positions. The steel bars are prone to displacement and floating, preventing them from forming an effective reinforcement network in the designed core stress areas.

[0025] This utility model proposes a steel bar fixing device for die casting elevator counterweight blocks.

[0026] Please see Figures 1 to 5 In one embodiment of this utility model, the elevator counterweight die-casting steel bar fixing device includes: The first support member 1 includes an integrally connected plug plate 11 and a support leg. The plug plate 11 has a protruding plug boss 111 on its surface and a recessed plug groove 1111 for inserting reinforcing bars. The support frame includes a support part 121, which includes two legs 1211. The two legs 1211 extend outward from the plug plate 11, and both legs 1211 are inclined to the side away from the other leg 1211. The second support member 2 includes a first sleeve 21 and a second sleeve 22. The axis of the first sleeve 21 and the axis of the second sleeve 22 are perpendicular to each other, and the outer side wall of the first sleeve 21 and the outer side wall of the second sleeve 22 are attached to each other to fix two perpendicular steel bars. The technical solution of this utility model is to fix the steel bars inside the mold 4 by inserting the first support member 1 at both ends of the steel bars. The first sleeve 21 and the second sleeve 22, which are perpendicular to each other on the second support member 2, can fix the crisscrossing steel bars together, effectively resisting the impact of flowing materials during the die casting process, preventing the steel bars from shifting or floating, and ensuring that the steel bar reinforcement network is located in the designed core stress area. The two support legs 1211 extend outward and form a stable triangular support structure with the bottom surface of the mold 4. In addition, during the die casting process, the two support legs 1211 will tilt outward to prevent the support part 121 from tilting due to the downward pressure, so that the steel bars are in the preset position, thereby ensuring the structural strength and crack resistance of the final product. Moreover, the steel bars can be put into the mold 4 after external assembly, which improves production efficiency.

[0027] It should be noted that during the die casting process, the downward pressure of the material will force the two support legs 1211 to expand further outward, which will enhance the overturning resistance of the support part 121 and ensure the positional stability of the entire steel reinforcement skeleton in the cavity.

[0028] In some embodiments, the cross-section of the insertion boss 111 is annular, and the size of the insertion groove 1111 is adapted to the reinforcing bar.

[0029] It should be noted that, to prevent the counterweight from cracking, the internal reinforcing bars typically include multiple reinforcing bars placed perpendicular to each other. These multiple parallel reinforcing bars are defined as first reinforcing bars 31, and the reinforcing bars perpendicular to the first reinforcing bars 31 are defined as second reinforcing bars 32. By fitting the first support member 1 at both ends of each first reinforcing bar 31, and through the support legs of the two first support members 1, the first reinforcing bars 31 can be mounted inside the mold 4. The second support member 2 connects the second reinforcing bars 32 to the first reinforcing bars 31. Furthermore, since the counterweight contains at least two first reinforcing bars 31, and one second reinforcing bar 32 is simultaneously connected to two first reinforcing bars 31, it further prevents the second reinforcing bars 32 from rotating around the first reinforcing bars 31.

[0030] In some embodiments, one of the support legs includes two support portions 121, which are located on opposite sides of the plug plate 11, and a cavity is cut out between the two support portions 121 to prevent material from being blocked.

[0031] like Figure 2 As shown, the plug plate 11 has a plurality of reinforcing ports 112, which penetrate the plug plate 11, and the plurality of reinforcing ports 112 are spaced apart around the plug protrusion 111.

[0032] It should be noted that the reinforcing openings 112 allow the die-casting material to pass smoothly through these reinforcing openings 112 when filling the mold 4, connecting the material on both sides of the plug plate 11 into a complete whole. This effectively avoids the material isolation effect of the solid plug plate 11 and prevents the formation of obvious joint surfaces on the plane of the plug plate 11, thereby eliminating structural weaknesses and potential cracking risks caused by material discontinuity.

[0033] Furthermore, the multiple reinforcing ports 112 reduce the material usage of the plug-in plate 11 itself while ensuring structural functionality, thereby lowering production costs.

[0034] like Figure 3 As shown, the insertion boss 111 is provided with an elastic clamping part, which includes at least one latch 113. The latch 113 is located at one end away from the insertion plate 11 and enters the insertion groove 1111. When the reinforcing bar is inserted into the insertion groove 1111, the latch 113 undergoes elastic deformation to clamp the reinforcing bar.

[0035] It is understood that the locking buckle 113 of the elastic clamping part undergoes elastic deformation when the reinforcing bar is inserted, thereby applying a continuous and active clamping force to the surface of the reinforcing bar, effectively resisting the vibration and slight displacement of the reinforcing bar during handling, mold closing and the initial stage of die casting, preventing the reinforcing bar from accidentally coming loose from the insertion groove 1111, and ensuring the absolute position stability of the reinforcing bar skeleton in the mold 4.

[0036] Furthermore, operators only need to insert the reinforcing bar into the insertion groove 1111 to complete the locking, eliminating the need for complex steps such as welding, thus improving operational efficiency.

[0037] It should be noted that the elastic clamping part has a certain deformation range, which can compensate for the manufacturing tolerance of the rebar diameter or the dimensional fluctuation of the insertion boss 111 itself to a certain extent. This adaptive capability ensures that different batches of rebars can obtain a stable and consistent clamping effect, thus improving adaptability.

[0038] Optionally, the elastic clamping part includes two latches 113, which are located on opposite sides of the insertion groove 1111.

[0039] It is understandable that by using two locking buckles 113 to ensure effective fixation of the reinforcing bar, the effective clamping area is increased, and the problem of the reinforcing bar tilting or lifting at the fixing point that may be caused by a single locking buckle 113 is avoided.

[0040] Optionally, the end of the latch 113 away from the plug plate 11 is provided with an arc-shaped plug surface 1131.

[0041] Understandably, the arc-shaped insertion surface 1131 forms a natural guide slope. When the end of the reinforcing bar contacts the latch 113, the arc-shaped insertion surface 1131 can efficiently convert the axial insertion force into a radial component force that causes the latch 113 to elastically open outward. This greatly reduces the resistance at the moment of insertion, allowing the reinforcing bar to slide easily and smoothly into the bottom of the insertion groove 1111 for assembly. This effectively prevents assembly difficulties or damage to the latch 113 caused by misalignment.

[0042] like Figure 2 and Figure 5 As shown, the plug plate 11 is provided with a plurality of limiting rods 114, which extend outward from the plug plate 11 to control the gap between the plug plate 11 and the mold 4.

[0043] It is understood that by having the end of the limiting rod 114 contact the inner wall of the mold 4, the gap between the plug plate 11 and the wall of the mold 4 is controlled, preventing the overall steel frame from shifting when the material is poured in, ensuring that there is a gap between the steel bars and the wall of the mold 4, and ensuring that the steel bars and the plug plate 11 are located inside the counterweight block after die casting and are not exposed to the outside.

[0044] Optionally, the limiting rod 114 includes two first rod bodies 1141 and one second rod body 1142 as shown, with the two first rod bodies 1141 located on opposite sides of the plug-in plate 11; The second rod 1142 is located on the side adjacent to the first rod 1141, and the extension direction of the second rod 1142 is opposite to the opening direction of the insertion groove 1111.

[0045] It is understandable that, due to the different positions of the plug-in plate 11, the positions of the adjacent mold 4 sidewalls of the plug-in plate 11 are also different. By setting two first rods 1141 extending in opposite directions, it is possible to fit during assembly without special selection. No matter which side of the adjacent mold 4 sidewall is located on the plug-in plate 11, the two first rods 1141 can ensure that one of the first rods 1141 can limit the distance between the plug-in plate 11 and the mold 4.

[0046] In some embodiments, the first sleeve 21 and the second sleeve 22 are closed.

[0047] like Figure 4 As shown, the first sleeve 21 has a first installation notch 211. The first installation notch 211 is located on the side of the first sleeve 21 away from the second sleeve 22. The first installation notch 211 extends along the axial direction of the first sleeve 21 and passes through both ends of the first sleeve 21. The second sleeve 22 has a second installation notch 221. The second installation notch 221 is located on the side of the second sleeve 22 away from the first sleeve 21. The second installation notch 221 extends along the axial direction of the second sleeve 22 and passes through both ends of the second sleeve 22.

[0048] Understandably, closed sleeves require the reinforcing bars to be inserted from the ends, limiting operating space and flexibility. By creating through installation notches on the opposite sides of the first sleeve 21 and the second sleeve 22, the reinforcing bars can be directly inserted radially into the first sleeve 21 and the second sleeve 22 without needing to be inserted from the ends. This eliminates the reliance on the accessibility of the reinforcing bar ends, greatly simplifying the assembly process in complex reinforcing bar cages, especially at intersections, making the operation faster and less labor-intensive.

[0049] Optionally, the gap of the first installation notch 211 is smaller than the inner diameter of the first sleeve 21, and the first sleeve 21 partially encloses the reinforcing bar. The gap of the second installation notch 221 is smaller than the inner diameter of the second sleeve 22, and the second sleeve 22 partially encloses the reinforcing bar.

[0050] It is understandable that, taking the first sleeve 21 as an example, the inner diameter of the first sleeve 21 is matched with the diameter of the reinforcing bar. Since the gap of the first installation notch 211 is smaller than the inner diameter of the first sleeve 21, when the reinforcing bar is radially inserted into the first sleeve 21, the first sleeve 21 will elastically expand, thereby generating a continuous, centripetal elastic clamping force on the surface of the reinforcing bar, providing reliable initial fixation for the reinforcing bar. In some embodiments, the inner diameter of the first sleeve 21 is interference-fitted with the reinforcing bar to increase the friction between the reinforcing bar and the first sleeve 21, and can also prevent two mutually perpendicular reinforcing bars from rotating around another reinforcing bar to a certain extent.

[0051] It is understandable that the second sleeve 22 is similar to the first sleeve 21, and will not be discussed again here.

[0052] Optionally, the inner wall of the first sleeve 21 and the inner wall of the second sleeve 22 are provided with anti-slip texture 23.

[0053] Understandably, the anti-slip texture 23 increases the static friction between the first sleeve 21 and the second sleeve 22 and the surface of the reinforcing bar. This effectively prevents the reinforcing bar from undergoing slight circumferential rotation or axial sliding within the first sleeve 21 and the second sleeve 22, especially when subjected to complex fluid impacts during die casting, ensuring the absolute stability of the cross-reinforcing bar node position and further consolidating the geometric stability of the entire reinforcing bar skeleton.

[0054] 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. A steel bar fixing device for die-casting elevator counterweights, characterized in that, include: The first support member includes an integrally connected plug plate and a support leg. The plug plate has a protruding plug boss on its surface and a recessed plug groove for inserting reinforcing bars. The support frame includes a support part, the support part includes two legs, the two legs extend outward from the plug plate, and both legs are inclined to the side away from the other leg; The second support member includes a first sleeve and a second sleeve, wherein the axis of the first sleeve and the axis of the second sleeve are perpendicular to each other, and the outer side wall of the first sleeve and the outer side wall of the second sleeve are attached to each other to fix two perpendicular steel bars.

2. The elevator counterweight block die-casting steel bar fixing device as described in claim 1, characterized in that, The connector plate has multiple reinforcement ports that penetrate the connector plate and are spaced apart around the connector boss.

3. The elevator counterweight block die-casting steel bar fixing device as described in claim 2, characterized in that, The insertion boss is provided with an elastic clamping part, which includes at least one latch. The end of the latch away from the insertion plate enters the insertion groove. When the reinforcing bar is inserted into the insertion groove, the latch undergoes elastic deformation to clamp the reinforcing bar.

4. The elevator counterweight block die-casting steel bar fixing device as described in claim 3, characterized in that, The elastic clamping part includes two latches, which are located on opposite sides of the insertion groove.

5. The elevator counterweight block die-casting steel bar fixing device as described in claim 4, characterized in that, The end of the latch away from the plug plate has an arc-shaped plug surface.

6. The elevator counterweight block die-casting steel bar fixing device as described in claim 1, characterized in that, The plug plate is provided with multiple limiting rods, which extend outward from the plug plate to control the gap between the plug plate and the mold.

7. The elevator counterweight block die-casting steel bar fixing device as described in claim 6, characterized in that, The limiting rod includes two first rod bodies and one second rod body as shown, with the two first rod bodies located on opposite sides of the plug-in plate; The second rod is located on the side adjacent to the first rod, and the extension direction of the second rod is opposite to the opening direction of the insertion groove.

8. The steel bar fixing device for die-casting elevator counterweights as described in claim 1, characterized in that, The first sleeve has a first installation notch located on the side of the first sleeve away from the second sleeve. The first installation notch extends along the axial direction of the first sleeve and passes through both ends of the first sleeve. The second sleeve has a second installation notch located on the side of the second sleeve away from the first sleeve. The second installation notch extends along the axial direction of the second sleeve and passes through both ends of the second sleeve.

9. The elevator counterweight block die-casting steel bar fixing device as described in claim 8, characterized in that, The gap of the first installation notch is smaller than the inner diameter of the first sleeve, and the first sleeve partially encloses the reinforcing bar; The gap of the second installation notch is smaller than the inner diameter of the second sleeve, and the second sleeve partially encloses the reinforcing bar.

10. The steel bar fixing device for die-casting elevator counterweights as described in claim 8, characterized in that, The inner walls of both the first sleeve and the second sleeve are provided with anti-slip textures.

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