Anti-deviation prefabricated slab carrying clamp

By designing a precast slab handling fixture to prevent offset, and utilizing the cooperation of a motor and a telescopic cylinder, the precast slab can be stably clamped, solving the problem of offset during handling and improving handling efficiency.

CN224335660UActive Publication Date: 2026-06-09JIANGSU CHENQIAN BUILDING MATERIALS TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU CHENQIAN BUILDING MATERIALS TECHNOLOGY CO LTD
Filing Date
2025-06-04
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Precast slabs are prone to shifting during handling, leading to edge damage and low handling efficiency.

Method used

A precast slab handling fixture designed to prevent offset includes a base, casters, push rod, mounting base, drive assembly, movable baffle assembly, and locking assembly. Through the combined use of a motor and a telescopic cylinder, it achieves stable clamping and anti-offset of the precast slab.

Benefits of technology

It effectively prevents precast slabs from shifting during handling, improves handling efficiency, reduces manual adjustment time, and is adaptable to precast slabs of different sizes.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224335660U_ABST
    Figure CN224335660U_ABST
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Abstract

This utility model relates to the field of precast slab technology, specifically to a precast slab handling fixture for preventing displacement. It includes a base with several casters at the bottom and a push rod on one side. Two mounting seats are symmetrically arranged on the top of the base, with a first groove and a second groove between them. A drive assembly is installed in the first groove, and a movable baffle assembly is installed on the drive assembly. A movable baffle assembly is installed in the second groove. A locking assembly is slidably mounted on both mounting seats. This utility model utilizes the cooperative use of the locking assembly, drive assembly, and movable baffle assembly to prevent displacement of the precast slab during handling. This not only ensures that the precast slab receives uniform force during handling but also eliminates the need for workers to adjust the position of the precast slab, saving considerable time and further improving handling efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of precast slab technology, specifically to a precast slab handling fixture that prevents deviation. Background Technology

[0002] Precast slabs are building components that are prefabricated in a factory or on a construction site. They are mainly made by mixing cement, sand, gravel and water in a certain proportion and then casting them into shape. Cement acts as a binder, binding the aggregates such as sand and gravel together.

[0003] However, the displacement of precast slabs during handling has several consequences. First, they may be subjected to uneven forces during handling, and displacement may cause the edges of the slabs to collide or be squeezed, resulting in damage and cracks to the concrete surface. Second, once a precast slab is displaced, the handling operation often needs to be paused, and workers need to readjust the position of the slab to ensure it is correctly placed before continuing the handling. This process inevitably wastes a lot of time and reduces the efficiency of the entire handling operation. Utility Model Content

[0004] The purpose of this utility model is to provide a reasonably designed precast slab handling fixture that prevents deviation, addressing the defects and shortcomings of the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a base, the bottom of which is provided with several universal wheels, a push rod is provided on one side of the base, and two mounting seats are symmetrically provided on the top of the base. A groove 1 and a groove 2 are provided between the two mounting seats. A drive component is provided in the groove 1, and a movable baffle component 1 is provided on the drive component. A movable baffle component 2 is provided in the groove 2. A locking component is slidably installed on both mounting seats.

[0006] Preferably, the drive assembly includes a self-locking motor fixedly connected to the base by a fastener. The output end of the self-locking motor passes through one side wall of the groove and is provided with a lead screw. A base plate is movably mounted on the thread of the lead screw. A guide post is provided in the groove on one side of the lead screw, and the base plate is slidably connected to the guide post.

[0007] Preferably, the movable baffle assembly includes two fixed blocks fixedly connected to the base plate. A worm gear is rotatably mounted on both fixed blocks. A servo motor is provided at one end of the worm gear. The servo motor is fixedly connected to the base plate. A power supply is provided on the base plate on one side of the servo motor. The power supply is electrically connected to the servo motor. Two rotating shaft seats are provided on the base plate on one side of the worm gear. A rotating shaft is mounted on both rotating shaft seats. A worm wheel is provided on the rotating shaft between the two rotating shaft seats. The worm wheel meshes with the worm gear. A baffle plate is fixedly connected to the rotating shaft on the outside of the two rotating shaft seats.

[0008] Preferably, the movable baffle assembly 2 includes a telescopic cylinder 1 fixedly connected to the base, a baffle plate 2 is provided at the output end of the telescopic cylinder 1, two limiting blocks 1 are provided on the baffle plate 2, and limiting grooves 1 corresponding to the limiting blocks 1 are provided on the inner side walls of the groove 2, and the limiting blocks 1 move within the limiting grooves 1.

[0009] Preferably, the locking assembly includes a mounting plate slidably connected to two mounting seats. The mounting plate is symmetrically provided with L-shaped plates. The two L-shaped plates are provided with telescopic cylinders. The output end of the telescopic cylinder passes through the L-shaped plate and is provided with a clamping plate. The clamping plate is provided with a limiting block. The L-shaped plate is provided with a limiting groove corresponding to the limiting block. The limiting block moves within the limiting groove. The mounting plate is also provided with anti-slip texture.

[0010] Preferably, the mounting plate is further provided with a plurality of sliders, and the mounting base is provided with a plurality of grooves corresponding to the sliders, and the sliders move within the grooves.

[0011] Preferably, the base has a third groove on both sides of the first and second grooves, and a plurality of rollers are rotatably installed in the third groove, with the rollers contacting the bottom of the mounting plate.

[0012] The beneficial effects of this utility model after adopting the above structure are:

[0013] This utility model utilizes the coordinated use of a locking component, a driving component, a movable baffle component one, and a movable baffle component two to prevent the precast slab from shifting during transport. This not only ensures that the precast slab is subjected to uniform force during transport but also eliminates the need for workers to adjust the position of the precast slab, saving a significant amount of time and further improving transport efficiency.

[0014] When in use, the drive component moves the movable baffle assembly one, causing the baffle one to contact the precast slab and continue to push the precast slab to move. When the other side of the precast slab contacts the baffle two, it further prevents deviation. In addition, with the use of two telescopic cylinders two, it can ultimately adapt to precast slabs of different thicknesses and lengths, thereby improving applicability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the drive component within the groove of this utility model;

[0018] Figure 4 yes Figure 3 Enlarged view of point A in the image;

[0019] Figure 5 This is a schematic diagram of the movable baffle assembly 2 of this utility model in its working state;

[0020] Figure 6 This is a structural schematic diagram of the locking component of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base; 2. Casters; 3. Push rod; 4. Mounting base; 5. Groove 1; 6. Groove 2; 7. Drive assembly; 71. Fixing component; 72. Self-locking motor; 73. Lead screw; 74. Base plate; 75. Guide post; 8. Movable baffle assembly 1; 81. Fixing block; 82. Worm gear; 83. Servo motor; 84. Power supply; 85. Rotary shaft seat; 86. Rotary shaft; 87. Worm gear; 88. Blocking plate 1; 9. Movable baffle assembly 2; 91. Telescopic cylinder 1; 92. Blocking plate 2; 93. Limiting block 1; 94. Limiting groove 1; 10. Locking assembly; 101. Mounting plate; 102. L-shaped plate; 103. Telescopic cylinder 2; 104. Clamping plate; 105. Limiting block 2; 106. Limiting groove 2; 107. Anti-slip texture; 108. Slider; 11. Groove 3; 12. Roller. Detailed Implementation

[0023] 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 protection scope of the present utility model.

[0024] like Figures 1-6 As shown, the present invention proposes a precast slab handling fixture for preventing deviation, which includes a base 1, a number of casters 2 at the bottom of the base 1, a push rod 3 on one side of the base 1, two mounting seats 4 symmetrically arranged at the top of the base 1, a first groove 5 and a second groove 6 between the two mounting seats 4, a drive assembly 7 in the first groove 5, a movable baffle assembly 8 on the drive assembly 7, a movable baffle assembly 9 in the second groove 6, and a locking assembly 10 slidably mounted on both mounting seats 4.

[0025] The drive assembly 7 includes a self-locking motor 72 fixedly connected to the base 1 by a fastener 71. The output end of the self-locking motor 72 passes through the side wall of the groove 5 and is provided with a lead screw 73. A base plate 74 is movably installed on the thread of the lead screw 73. A guide post 75 is provided in the groove 5 on one side of the lead screw 73. The base plate 74 and the guide post 75 are slidably connected. The setting of the drive assembly 7 further drives the movable baffle assembly 8 to move.

[0026] The movable baffle assembly 8 includes two fixed blocks 81 fixedly connected to the base plate 74. A worm gear 82 is rotatably mounted on both fixed blocks 81. A servo motor 83 is provided at one end of the worm gear 82. The servo motor 83 is fixedly connected to the base plate 74. A power supply 84 is provided on the base plate 74 on one side of the servo motor 83. The power supply 84 is electrically connected to the servo motor 83. Two rotating shaft seats 85 are provided on the base plate 74 on one side of the worm gear 82. A rotating shaft 86 is mounted on both rotating shaft seats 85. A worm wheel 87 is provided on the rotating shaft 86 between the two rotating shaft seats 85. The worm wheel 87 is meshed with the worm gear 82. A baffle plate 88 is fixedly connected on the rotating shaft 86 on the outside of the two rotating shaft seats 85.

[0027] The movable baffle assembly 29 includes a telescopic cylinder 191 fixedly connected to the base 1. The output end of the telescopic cylinder 191 is provided with a baffle plate 292. The baffle plate 292 is provided with two limit blocks 193. The inner side walls of the groove 26 are provided with limit grooves 194 corresponding to the limit blocks 193. The limit blocks 193 move within the limit grooves 194 to further ensure the stable lifting of the baffle plate 292.

[0028] The locking assembly 10 includes a mounting plate 101 slidably connected to two mounting seats 4. The mounting plate 101 is symmetrically provided with L-shaped plates 102. The two L-shaped plates 102 are provided with telescopic cylinders 103. The output end of the telescopic cylinders 103 passes through the L-shaped plates 102 and is provided with a clamping plate 104. The clamping plate 104 is provided with a limiting block 105. The L-shaped plate 102 is provided with a limiting groove 106 corresponding to the limiting block 105. The limiting block 105 moves within the limiting groove 106 to ensure the stability of the clamping plate 104 when it moves. The mounting plate 101 is also provided with anti-slip textures 107 to further increase the contact friction between the mounting plate 101 and the precast slab.

[0029] The mounting plate 101 is also provided with a number of sliders 108, and the mounting base 4 is provided with a number of slide grooves 41 corresponding to the sliders 108, and the sliders 108 move in the slide grooves 41.

[0030] The base 1 has a groove 3 11 on both sides of the groove 1 5 and the groove 2 6. Several rollers 12 are rotatably installed in the groove 3 11. The rollers 12 contact the bottom of the mounting plate 101, so that the mounting plate 101 can be in a movable state.

[0031] The principle and usage process of this utility model:

[0032] Before use, connect the self-locking motor 72 to an external power source, then start the self-locking motor 72. The transmission end of the self-locking motor 72 drives the lead screw 73 to rotate, thereby moving the base plate 74 on the lead screw 73 to the starting point. The purpose of this is to facilitate the subsequent anti-displacement blocking work of precast slabs of different lengths and sizes. The blocking plate 88 on the movable baffle assembly 8 is in a horizontal state. The staff then uses the roller 12 to slide the locking assembly 10 to the center area of ​​the base 1.

[0033] Subsequently, when it is necessary to move the precast slab, the staff first uses a special clamping device to clamp the precast slab, and then moves it laterally onto the mounting plate 101 by a lateral movement operation. During this process, the clamping plate 104 is always at the highest point, which does not affect the placement of the precast slab. Precast slabs of different thicknesses can also be placed, but the maximum thickness does not exceed the value of the highest point of the clamping plate 104. At this time, the precast slab placed on the mounting plate 101 can be locked. That is, the staff activates the two telescopic cylinders 103. The output ends of the two telescopic cylinders 103 push the clamping plate 104 to slide on the L-shaped plate 102, thereby locking the two clamping plates 104 to hold the precast slab, thus playing a positioning role. Combined with the anti-slip texture 107 at the bottom, the possibility of displacement is further reduced.

[0034] Next, after locking is completed, the servo motor 83 can be started by activating the movable baffle assembly 8 and the movable baffle assembly 9. The power supply 84 supplies power to the servo motor 83, and the transmission end of the servo motor 83 drives the worm gear 82 to rotate. Since the worm gear 82 is meshed with the worm wheel 87, when the worm gear 82 rotates, it can drive the worm wheel 87 to rotate, which in turn drives the rotating shaft 86 fixedly connected to the worm wheel 87 to rotate, and together drive the blocking plate 88 fixedly connected to the rotating shaft 86. Due to the special parameters set by the servo motor 83, the blocking plate 88 can be rotated to a vertical state. Then, the telescopic cylinder 91 is activated, and the output end of the telescopic cylinder 91 pushes out the blocking plate 92. At this time, both the blocking plate 88 and the blocking plate 92 are in a blocking state.

[0035] Finally, by activating the self-locking motor 72, the transmission end of the self-locking motor 72 drives the lead screw 73 to rotate, thereby moving the base plate 74, which in turn moves the movable baffle assembly 8. When the baffle 88 contacts the precast slab, it pushes the precast slab to continue moving. When the other side of the precast slab contacts the baffle 92, it finally achieves the effect of preventing deviation. In addition, with the self-locking function of the self-locking motor 72, the precast slab is firmly limited here, reducing unnecessary trouble caused by deviation.

[0036] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A precast slab handling fixture for preventing offset, comprising a base (1), wherein a plurality of casters (2) are provided at the bottom of the base (1), and a push rod (3) is provided on one side of the base (1), characterized in that: The base (1) has two mounting seats (4) symmetrically arranged on the top. There is a first groove (5) and a second groove (6) between the two mounting seats (4). A driving component (7) is arranged in the first groove (5). A movable baffle component (8) is arranged on the driving component (7). A movable baffle component (9) is arranged in the second groove (6). A locking component (10) is slidably installed on both mounting seats (4).

2. The precast slab handling fixture for preventing offset according to claim 1, characterized in that: The drive assembly (7) includes a self-locking motor (72) fixedly connected to the base (1) by a fastener (71). The output end of the self-locking motor (72) passes through the side wall of the groove (5) and is provided with a lead screw (73). A base plate (74) is movably installed on the thread of the lead screw (73). A guide post (75) is provided in the groove (5) on one side of the lead screw (73). The base plate (74) and the guide post (75) are slidably connected.

3. The precast slab handling fixture for preventing offset according to claim 2, characterized in that: The movable baffle assembly (8) includes two fixed blocks (81) fixedly connected to the base plate (74). A worm gear (82) is rotatably mounted on both fixed blocks (81). A servo motor (83) is provided at one end of the worm gear (82). The servo motor (83) is fixedly connected to the base plate (74). A power supply (84) is provided on the base plate (74) on one side of the servo motor (83). The power supply (84) is electrically connected to the servo motor (83). Two rotating shaft seats (85) are provided on the base plate (74) on one side of the worm gear (82). A rotating shaft (86) is mounted on both rotating shaft seats (85). A worm wheel (87) is provided on the rotating shaft (86) between the two rotating shaft seats (85). The worm wheel (87) meshes with the worm gear (82). A baffle plate (88) is fixedly connected on the rotating shaft (86) outside the two rotating shaft seats (85).

4. The precast slab handling fixture for preventing offset according to claim 3, characterized in that: The movable baffle assembly 2 (9) includes a telescopic cylinder 1 (91) fixedly connected to the base (1). The output end of the telescopic cylinder 1 (91) is provided with a baffle plate 2 (92). The baffle plate 2 (92) is provided with two limiting blocks 1 (93). The inner side walls of the groove 2 (6) are provided with limiting grooves 1 (94) corresponding to the limiting blocks 1 (93). The limiting blocks 1 (93) move within the limiting grooves 1 (94).

5. The precast slab handling fixture for preventing offset according to claim 4, characterized in that: The locking assembly (10) includes a mounting plate (101) slidably connected to two mounting seats (4). The mounting plate (101) is symmetrically provided with L-shaped plates (102). The two L-shaped plates (102) are provided with telescopic cylinders (103). The output end of the telescopic cylinders (103) passes through the L-shaped plates (102) and is provided with a clamping plate (104). The clamping plate (104) is provided with a limiting block (105). The L-shaped plate (102) is provided with a limiting groove (106) corresponding to the limiting block (105). The limiting block (105) moves within the limiting groove (106). The mounting plate (101) is also provided with anti-slip textures (107).

6. The precast slab handling fixture for preventing offset according to claim 5, characterized in that: The mounting plate (101) is also provided with a number of sliders (108), and the mounting base (4) is provided with a number of grooves (41) corresponding to the sliders (108), and the sliders (108) move within the grooves (41).

7. A precast slab handling fixture for preventing offset according to claim 6, characterized in that: The base (1) has a groove three (11) on both sides of the groove one (5) and the groove two (6). Several rollers (12) are rotatably installed in the groove three (11), and the rollers (12) are in contact with the bottom of the mounting plate (101).