Base plate top layer of reinforcement layer thickness review tool

CN224873006UActive Publication Date: 2026-10-20THE FOURTH ENG CO LTD OF CTCE GRP +1
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Patent Information

Application Number
CN202522330967.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-03
Publication Date
2026-10-20
Estimated Expiration
2035-11-03

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于提供底座板顶层钢筋保护层厚度复核工装,解决了装置没有高度显示机构,不便显示连接杆等部件的高度,导致装置不便于使用,而且当装置使用时,装置没有限位机构,螺帽不便得到限位,导致装置上的螺帽长时间使用可能会发生松动的问题

Benefits of technology

[0013]1、本实用新型通过设计显示尺、润滑海绵、注油口、盖体、密封套和卡槽等部件,拉动滑块移动到指定位置,将螺帽转动到指定位置,然后将滑块移动到环形槽内,进而使得螺帽得到限位,防止装置上的螺帽长时间使用发生松动。

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Abstract

The application relates to the technical field of measuring tooling, and particularly discloses a base plate top layer steel bar protection layer thickness rechecking tooling, which comprises a fixed plate, a fixed rod fixedly connected to the fixed plate, a threaded rod fixedly connected to the upper end of the fixed rod, a connecting rod slidably connected to the outer side of the threaded rod, a nut threadedly connected to the outer side of the threaded rod, the nut being in contact with the connecting rod, a limiting mechanism arranged at the upper end of the connecting rod, a supporting rod fixedly connected to the upper end of the fixed plate, a connecting pipe fixedly connected to the upper end of the supporting rod, a fixed pipe fixedly connected to the lower end of the connecting rod, and rollers arranged at the lower end of the fixed pipe. Through the design of the display ruler, the lubricating sponge, the oil injection port, the cover body, the sealing sleeve and the clamping groove, the sliding block is pulled to move to a specified position, the nut is rotated to a specified position, then the sliding block is moved into the annular groove, and the nut is limited, so that loosening of the nut on the device during long-time use is prevented.
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Description

Technical Field

[0001] This application relates to the field of measurement tooling technology, and in particular to a tooling for verifying the thickness of the protective layer of the top layer of steel reinforcement in a base plate. Background Technology

[0002] The base slab top rebar cover thickness verification tool is a specialized tool designed for accurately detecting the thickness of the top rebar cover during the base slab construction phase. This tool is primarily used in the construction engineering field, specifically focusing on the structural engineering sub-field, particularly in the construction of bridges, tunnels, or roadbed structures in transportation infrastructure projects such as railways and highways. The core application of this tool is in the construction quality control of the base slab, a reinforced concrete component, ensuring that the rebar cover thickness meets design specifications, thereby guaranteeing the structure's load-bearing capacity, durability, and safety.

[0003] In the existing technology, the device lacks a height display mechanism, making it inconvenient to display the height of components such as connecting rods, which hinders the device's use. Furthermore, the lack of a limiting mechanism during use makes it difficult to keep the nuts in place, potentially causing them to loosen over time. Therefore, improvements to the existing technology are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling for verifying the thickness of the protective layer of the top steel bar of the base plate. This solves the problem that the device does not have a height display mechanism, making it inconvenient to display the height of components such as connecting rods, which makes the device inconvenient to use. Moreover, when the device is in use, the lack of a limiting mechanism makes it difficult to limit the nuts, which may cause the nuts on the device to loosen after long-term use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for verifying the thickness of the protective layer of the top layer of the base plate reinforcement, comprising a fixed plate, a fixed rod fixedly connected to the fixed plate, a threaded rod fixedly connected to the upper end of the fixed rod, a connecting rod slidably connected to the outer side of the threaded rod, a nut threadedly connected to the outer side of the threaded rod, the nut contacting the connecting rod, a limit mechanism provided at the upper end of the connecting rod, a support rod fixedly connected to the upper end of the fixed plate, a connecting pipe fixedly connected to the upper end of the support rod, a fixed pipe fixedly connected to the lower end of the connecting rod, a roller provided at the lower end of the fixed pipe, the roller contacting the connecting pipe, and a height display mechanism provided inside the connecting rod.

[0006] Preferably, the limiting mechanism includes an annular groove. The nut has an annular groove inside, and a slider is slidably connected inside the annular groove. A connecting seat is fixedly connected to the upper end of the connecting rod. A pull rod is fixedly connected to the end of the slider away from the annular groove. A support ring is fixedly connected to the outer side of the slider. A guide rod is slidably connected inside the support ring. A spring is provided on the outer side of the guide rod. The connecting seat is fixedly connected to the guide rod and slidably connected to the slider. By pulling the slider to a designated position, the nut is rotated to the designated position, and then the slider is moved into the annular groove, thereby limiting the nut and preventing it from loosening after prolonged use.

[0007] Preferably, the connecting seat is slidably connected to the pull rod, and a handle is fixedly connected to the end of the pull rod away from the slider. By designing the handle, the force applied to the handle can conveniently drive the pull rod to move stably along the sliding trajectory of the connecting seat, thereby improving the ease of operation.

[0008] Preferably, one end of the spring is fixedly connected to the support ring, and the other end of the spring is fixedly connected to the connecting seat. By designing the spring, the elastic characteristics of the spring can provide a continuous elastic force to the support ring, ensuring that the support ring can automatically reset after being displaced by force, and maintaining the stability of the structure.

[0009] Preferably, the height display mechanism includes a display ruler fixedly connected to the upper end of a fixed rod. A lubricating sponge is disposed inside the connecting rod, and the lubricating sponge is slidably connected to the display ruler. An oil inlet is provided inside the connecting rod, and the inside of the oil inlet contacts a cover. A retaining groove is provided inside the connecting rod, and the connecting rod is slidably connected to the display ruler. By opening the cover and pouring lubricating oil from the oil inlet onto the lubricating sponge, the lubricating sponge lubricates the connection between the connecting rod and the display ruler. Moving the connecting rod and other components to a designated position allows the height of the connecting rod and other components to be displayed on the display ruler, making the device easy to use.

[0010] Preferably, a sealing sleeve is fixedly fitted to the outer side of the cover, and the sealing sleeve contacts the connecting rod. By designing the sealing sleeve, the fitting gap between the cover and the connecting rod can be effectively filled, preventing the intrusion of external impurities or leakage of internal media, and improving the overall sealing performance.

[0011] Preferably, the slot has an elastic block inside, which is fixedly connected to the cover. By designing the elastic block, the elastic deformation of the elastic block and the limiting effect of the slot can quickly realize the assembly and positioning of the cover, while also helping to enhance the connection and sealing between the cover and the corresponding parts, and preventing loosening and displacement.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the design of components such as a display scale, lubricating sponge, oil inlet, cover, sealing sleeve and slot, allows the slider to be moved to a designated position, the nut to be rotated to a designated position, and then the slider to be moved into the annular groove, thereby limiting the nut and preventing the nut on the device from loosening after long-term use.

[0014] 2. This utility model incorporates components such as an annular groove, slider, connecting seat, pull rod, handle, and support ring. After opening the cover, lubricating oil is poured into the lubricating sponge through the oil inlet. The lubricating sponge lubricates the connection between the connecting rod and the display ruler. By moving the connecting rod and other components to the designated position, the height of the connecting rod and other components can be displayed on the display ruler, making the device easy to use. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Partial sectional perspective view of the structure;

[0017] Figure 3 This utility model Figure 2 Enlarged view of the nut;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point A.

[0019] In the diagram: 1. Fixing plate; 2. Fixing rod; 3. Threaded rod; 4. Connecting rod; 5. Nut; 6. Limiting mechanism; 61. Annular groove; 62. Slider; 63. Connecting seat; 64. Pull rod; 65. Handle; 66. Support ring; 67. Guide rod; 68. Spring; 7. Support rod; 8. Connecting pipe; 9. Fixing pipe; 10. Roller; 11. Height display mechanism; 111. Display ruler; 112. Lubricating sponge; 113. Oil inlet; 114. Cover; 115. Sealing sleeve; 116. Slot; 117. Elastic block. 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 protection scope of the present utility model.

[0021] Please see Figures 1-4The fixture for verifying the thickness of the protective layer of the top layer of the base plate steel reinforcement includes a fixed plate 1, a fixed rod 2 fixedly connected to the fixed plate 1, a threaded rod 3 fixedly connected to the upper end of the fixed rod 2, a connecting rod 4 slidably connected to the outer side of the threaded rod 3, a nut 5 threadedly connected to the outer side of the threaded rod 3, the nut 5 contacting the connecting rod 4, a limit mechanism 6 provided at the upper end of the connecting rod 4, a support rod 7 fixedly connected to the upper end of the fixed plate 1, a connecting pipe 8 fixedly connected to the upper end of the support rod 7, a fixed pipe 9 fixedly connected to the lower end of the connecting rod 4, a roller 10 provided at the lower end of the fixed pipe 9, the roller 10 contacting the connecting pipe 8, and a height display mechanism 11 provided inside the connecting rod 4.

[0022] Please see Figure 3 The limiting mechanism 6 includes an annular groove 61. An annular groove 61 is formed inside the nut 5. A slider 62 is slidably connected inside the annular groove 61. A connecting seat 63 is fixedly connected to the upper end of the connecting rod 4. A pull rod 64 is fixedly connected to the end of the slider 62 away from the annular groove 61. The connecting seat 63 and the pull rod 64 are slidably connected. A handle 65 is fixedly connected to the end of the pull rod 64 away from the slider 62. By designing the handle 65, the force applied to the handle 65 can easily drive the pull rod 64 to move stably along the sliding trajectory of the connecting seat 63, improving operational convenience. A support ring 66 is fixedly connected to the outer side of the slider 62. A guide rod 67 is slidably connected inside the support ring 66. A spring 68 is provided on the side. One end of the spring 68 is fixedly connected to the support ring 66, and the other end of the spring 68 is fixedly connected to the connecting seat 63. By designing the spring 68, the elastic characteristics of the spring 68 can provide a continuous elastic force to the support ring 66, ensuring that the support ring 66 can automatically reset after being displaced by force, and maintaining the stability of the structure. The connecting seat 63 is fixedly connected to the guide rod 67 and slidably connected to the slider 62. By pulling the slider 62 to the designated position, the nut 5 is rotated to the designated position, and then the slider 62 is moved into the annular groove 61, thereby limiting the nut 5 and preventing the nut 5 on the device from loosening after long-term use.

[0023] Please see Figure 1 , Figure 2 , Figure 4The height display mechanism 11 includes a display ruler 111 fixedly connected to the upper end of a fixed rod 2. A lubricating sponge 112 is provided inside the connecting rod 4, and the lubricating sponge 112 is slidably connected to the display ruler 111. An oil inlet 113 is opened inside the connecting rod 4, and a cover 114 is in contact inside the oil inlet 113. A sealing sleeve 115 is fixedly sleeved on the outside of the cover 114, and the sealing sleeve 115 is in contact with the connecting rod 4. By designing the sealing sleeve 115, the fitting gap between the cover 114 and the connecting rod 4 can be effectively filled, preventing the intrusion of external impurities or leakage of internal media, and improving the overall sealing performance. A slot 116 is opened inside the connecting rod 4, and an elastic block 117 is engaged inside the slot 116. The elastic locking block 117 is fixedly connected to the cover 114. By designing the elastic locking block 117, the elastic deformation of the elastic locking block 117 and the limiting effect of the locking groove 116 can quickly realize the assembly and positioning of the cover 114. At the same time, it helps to enhance the connection and sealing between the cover 114 and the corresponding parts, and avoid loosening and displacement. The connecting rod 4 is slidably connected to the display ruler 111. By opening the cover 114, lubricating oil is poured from the oil inlet 113 onto the lubricating sponge 112. The lubricating sponge 112 can lubricate the connection between the connecting rod 4 and the display ruler 111. When the connecting rod 4 and other parts are moved to the designated position, the height of the connecting rod 4 and other parts can be displayed on the display ruler 111, making the device easy to use.

[0024] The specific implementation process of this utility model is as follows: Before the device is used, the cover 114 is moved upward. The upward movement of the cover 114 causes the elastic block 117 and the sealing sleeve 115 to move upward. The elastic block 117 moves upward and moves out of the slot 116. Then, lubricating oil is poured from the oil inlet 113 onto the lubricating sponge 112. The lubricating sponge 112 can lubricate the connection between the connecting rod 4 and the display ruler 111. The connecting rod 4 and other components are moved to the designated position. The height of the connecting rod 4 and other components can be displayed by the display ruler 111, making the device easy to use.

[0025] When the device is in use, pull the handle 65 to move it away from the connecting seat 63. The movement of the handle 65 causes the pull rod 64 to move, which in turn causes the slider 62 to move. The movement of the slider 62 causes the support ring 66 to move, which in turn compresses the spring 68. After the slider 62 and other components move to the designated position, rotate the nut 5 and the annular groove 61 to the designated position. Then release the handle 65. The elastic force of the spring 68 pushes the support ring 66 to move, which in turn causes the slider 62 and other components to move. The slider 62 moves into the annular groove 61, thereby limiting the nut 5 and preventing the nut 5 on the device from loosening after long-term use.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for verifying the thickness of the protective layer of the top layer of steel reinforcement in the base plate, including a fixing plate (1), characterized in that: A fixing rod (2) is fixedly connected to the fixing plate (1). A threaded rod (3) is fixedly connected to the upper end of the fixing rod (2). A connecting rod (4) is slidably connected to the outer side of the threaded rod (3). A nut (5) is threadedly connected to the outer side of the threaded rod (3). The nut (5) contacts the connecting rod (4). A limit mechanism (6) is provided at the upper end of the connecting rod (4). A support rod (7) is fixedly connected to the upper end of the fixing plate (1). A connecting pipe (8) is fixedly connected to the upper end of the support rod (7). A fixing pipe (9) is fixedly connected to the lower end of the connecting rod (4). A roller (10) is provided at the lower end of the fixing pipe (9). The roller (10) contacts the connecting pipe (8). A height display mechanism (11) is provided inside the connecting rod (4).

2. The fixture for verifying the thickness of the top layer reinforcement protective layer of the base plate according to claim 1, characterized in that: The limiting mechanism (6) includes an annular groove (61). The nut (5) has an annular groove (61) inside. A slider (62) is slidably connected inside the annular groove (61). A connecting seat (63) is fixedly connected to the upper end of the connecting rod (4). A pull rod (64) is fixedly connected to the end of the slider (62) away from the annular groove (61). A support ring (66) is fixedly connected to the outer side of the slider (62). A guide rod (67) is slidably connected inside the support ring (66). A spring (68) is provided on the outer side of the guide rod (67). The connecting seat (63) is fixedly connected to the guide rod (67). The connecting seat (63) is slidably connected to the slider (62).

3. The fixture for verifying the thickness of the top layer reinforcement protective layer of the base plate according to claim 2, characterized in that: The connecting seat (63) is slidably connected to the pull rod (64), and a handle (65) is fixedly connected to the end of the pull rod (64) away from the slider (62).

4. The fixture for verifying the thickness of the top layer reinforcement protective layer of the base plate according to claim 2, characterized in that: One end of the spring (68) is fixedly connected to the support ring (66), and the other end of the spring (68) is fixedly connected to the connecting seat (63).

5. The tooling for verifying the thickness of the protective layer of the top layer of reinforcement in the base plate according to claim 1, characterized in that: The height display mechanism (11) includes a display ruler (111) fixedly connected to the upper end of a fixed rod (2), a lubricating sponge (112) provided inside the connecting rod (4), the lubricating sponge (112) being slidably connected to the display ruler (111), an oil inlet (113) being provided inside the connecting rod (4), a cover (114) being in contact with the inside of the oil inlet (113), a slot (116) being provided inside the connecting rod (4), and the connecting rod (4) being slidably connected to the display ruler (111).

6. The fixture for verifying the thickness of the top layer reinforcement protective layer of the base plate according to claim 5, characterized in that: A sealing sleeve (115) is fixedly sleeved on the outside of the cover (114), and the sealing sleeve (115) is in contact with the connecting rod (4).

7. The fixture for verifying the thickness of the top layer reinforcement protective layer of the base plate according to claim 5, characterized in that: The slot (116) is fitted with an elastic block (117), which is fixedly connected to the cover (114).