A stent pre-press deformation monitoring device
By introducing structures such as positioning rods, positioning holes, positioning grooves, and clamping mechanisms into the support pre-compression deformation monitoring device, the problem of dial indicator position offset was solved, thereby improving the accuracy and applicability of support pre-compression deformation monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 24TH BUREAU GROUP CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-07
AI Technical Summary
In existing support pre-compression deformation monitoring devices, the dial gauge lacks a fixed structure, which makes it susceptible to positional displacement due to environmental influences during use, affecting the accuracy and applicability of the detection.
The dial indicator is fixed in position by means of positioning rods, positioning holes, positioning grooves and clamping mechanisms. The positioning rods and positioning holes are used to fix the position of the dial indicator and the clamping mechanism is used to limit the dial indicator. The positioning groove and positioning mechanism are used to adjust the angle of the dial indicator to ensure its stability and accuracy.
It effectively prevents the dial indicator from shifting position, improves the detection accuracy and applicability of the monitoring device, and enhances the efficiency and reliability of monitoring the pre-stressing deformation of the support.
Smart Images

Figure CN224470991U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of support pre-stress deformation monitoring technology, specifically a support pre-stress deformation monitoring device. Background Technology
[0002] The pre-stressing deformation monitoring device for supports is a key piece of equipment to ensure the construction safety of bridges, buildings and other engineering projects. Its core function is to ensure the stability and safety of the support structure by monitoring the deformation of the support in real time during the pre-stressing process. However, some existing supports are directly installed on a flat plate when performing pre-stressing tests, and then measured with a dial indicator.
[0003] However, in some existing devices, the dial indicator is placed directly inside the device without a fixing structure. Long-term placement makes the dial indicator susceptible to the influence of the surrounding environment, causing it to shift in position. This reduces the accuracy of the dial indicator in detecting the support and affects the monitoring effect of the device on the support. Utility Model Content
[0004] The purpose of this invention is to provide a support pre-stress deformation monitoring device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a support pre-stress deformation monitoring device, comprising a mounting frame and positioning holes formed on its surface, and further comprising:
[0006] A positioning rod slides within the positioning hole cavity. A fixing plate is fixedly connected to the top of the positioning rod. A fixing shell is fixedly connected to the top of the fixing plate. Positioning mechanisms are installed on both sides of the cavity of the fixing shell. A rotating frame is rotatably connected to the top of the fixing plate.
[0007] A positioning groove is formed on the inner wall of the rotating frame. A connecting shell is fixedly connected to the top of the rotating frame. A clamping mechanism is provided inside the connecting shell. The dial indicator body is provided inside the clamping mechanism.
[0008] Preferably, the positioning mechanism includes a compression spring fixed to the inner wall of the fixed shell, the other end of the compression spring is fixedly connected to a movable block, and a positioning ball is fixedly connected to the surface of the movable block.
[0009] Preferably, the clamping mechanism includes a bidirectional threaded rod that rotates within the inner cavity of the connecting shell, with sleeves threadedly connected to two points on the surface of the bidirectional threaded rod, and a clamping plate fixedly connected to the top of the sleeves.
[0010] Preferably, guide grooves are provided on both sides of the inner cavity of the connecting shell, and guide blocks are fixedly connected to the surface of the sleeve, with the surface of the guide blocks slidably connected to the inner wall of the guide groove.
[0011] Preferably, a protective pad is fixedly connected to one side of the clamping plate, and the protective pad has a flexible structure design.
[0012] Preferably, one end of the bidirectional threaded rod is fixedly connected to a bearing seat, and the other side of the bearing seat is fixedly connected to the inner wall of the connecting shell.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention, through the clamping mechanism, can limit the position of the dial indicator body, and the cooperation between the positioning hole and the positioning rod facilitates the fixation of the dial indicator body's position, thus preventing easy positional deviation during use and effectively improving the monitoring accuracy of the device. Simultaneously, the cooperation between the positioning groove and the positioning mechanism facilitates the control of the dial indicator body's angle, resulting in more accurate positioning of the dial indicator body during installation, improving the monitoring efficiency of the bracket, and effectively enhancing the applicability of the device. This solves the problems of poor accuracy and limited applicability of existing devices. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a partial three-dimensional structural diagram of the present invention;
[0017] Figure 3 This is a partial three-dimensional cross-sectional structural diagram of the present invention;
[0018] Figure 4 This is a schematic diagram of a partial three-dimensional cross-sectional unfolded structure of the present invention.
[0019] In the diagram: 1. Mounting bracket; 2. Positioning hole; 3. Positioning rod; 4. Fixing plate; 5. Fixing shell; 6. Positioning mechanism; 61. Compression spring; 62. Movable block; 63. Positioning ball; 7. Rotating frame; 8. Positioning groove; 9. Connecting shell; 10. Clamping mechanism; 101. Bidirectional threaded rod; 102. Sleeve; 103. Clamping plate; 11. Dial indicator body; 12. Bearing seat; 13. Protective pad; 14. Guide groove; 15. Guide 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 Figure 1-4 As shown, a bracket pre-compression deformation monitoring device includes a mounting frame 1. The surface of the mounting frame 1 has several positioning holes 2. Positioning rods 3 are slidably connected to the inner cavity of each positioning hole 2. A fixing plate 4 is fixedly connected to the top of each positioning rod 3. The positioning rods 3 work in pairs with the fixing plate 4. This allows the positioning rods 3 to be inserted into different positions within the positioning holes 2, facilitating the adjustment of the position of the fixing plate 4. This makes it easier to move the fixing plate 4 when needed, and also prevents the fixing plate 4 from easily moving after the positioning rods 3 are inserted into the positioning holes 2. A fixing shell 5 is fixedly connected to the top of the fixing plate 4. Positioning mechanisms 6 are installed on both sides of the inner cavity of the fixing shell 5. A rotating frame 7 is rotatably connected to the top of the fixing plate 4. Several positioning grooves 8 are formed on the inner wall of the rotating frame 7. The positioning grooves 8 cooperate with the positioning mechanisms 6, and the surface of the rotating frame 7 slides against the inner wall of the fixing shell 5. The connection mechanism allows the positioning mechanism 6 to not limit the rotation of the rotating frame 7 when it is rotating, and to limit the rotation of the rotating frame 7 when it is not rotating, through the cooperation of the positioning groove 8. This prevents the rotating frame 7 from rotating easily. A connecting shell 9 is fixedly connected to the top of the rotating frame 7. A clamping mechanism 10 is provided inside the connecting shell 9. A dial indicator body 11 is provided inside the clamping mechanism 10. The dial indicator body 11 can detect the support, thereby facilitating the monitoring of the support's deformation. Under the action of the clamping mechanism 10, the dial indicator body 11 can be fixed, preventing it from moving easily and maintaining the stability of the dial indicator body 11 during use. Furthermore, with the cooperation of the rotating frame 7, the angle and position of the dial indicator body 11 can be adjusted, making it more convenient to use the dial indicator body 11 to detect the support, effectively improving the applicability of the device.
[0022] The positioning mechanism 6 includes a compression spring 61 fixed to the inner wall of the fixed housing 5. The other end of the compression spring 61 is fixedly connected to a movable block 62. A positioning ball 63 is fixedly connected to the surface of the movable block 62. The surface of the movable block 62 is slidably connected to the inner wall of the fixed housing 5. The positioning ball 63 works in conjunction with the positioning groove 8. Under this action, the movable block 62 can drive the positioning ball 63 to embed into the interior of the positioning groove 8 through the cooperation of the compression spring 61, thereby fixing the rotating frame 7. When the rotating frame 7 is subjected to a large force, the movable block 62 will squeeze the compression spring 61 to move the positioning ball 63 out of the interior of the positioning groove 8, thereby releasing the limitation on the rotating frame 7 and facilitating the adjustment of the position and angle of the dial indicator body 11.
[0023] The clamping mechanism 10 includes a bidirectional threaded rod 101 that rotates within the inner cavity of the connecting shell 9. Sleeves 102 are threaded to two points on the surface of the bidirectional threaded rod 101. A clamping plate 103 is fixedly connected to the top of each sleeve 102. The clamping plate 103 cooperates with the dial indicator body 11. Rotating the bidirectional threaded rod 101 causes the sleeves 102 to move the clamping plate 103, thus facilitating clamping and limiting the dial indicator body 11 to prevent easy positional deviation. A bearing seat 12 is fixedly connected to one end of the bidirectional threaded rod 101, and the other side of the bearing seat 12 is fixedly connected to the inner wall of the connecting shell 9. This provides support to one end of the bidirectional threaded rod 101, making it more stable during rotation and preventing instability. The threaded connection between the sleeve 102 and the clamp plate 103 is affected. A protective pad 13 is fixedly connected to one side of the clamp plate 103. The protective pad 13 has a flexible structure design. Under this action, the protective pad 13 can provide flexible protection for the dial indicator body 11 through cooperation, so that the clamp plate 103 will not easily damage the dial indicator body 11, effectively improving the service life of the dial indicator body 11. Guide grooves 14 are opened on both sides of the inner cavity of the connecting shell 9. A guide block 15 is fixedly connected to the surface of the sleeve 102. The surface of the guide block 15 is slidably connected to the inner wall of the guide groove 14. Under this action, the sleeve 102 can be guided by the cooperation of the guide block 15 and the guide groove 14 when the sleeve 102 moves, so that the sleeve 102 can be more stable when moving.
[0024] It is worth noting that the technical features such as the dial gauge body 11 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.
[0025] Working principle: First, the bracket to be tested is installed on the surface of the mounting bracket 1. Then, the positioning rod 3 is inserted into the positioning hole 2, so that the position of the dial indicator body 11 is convenient for testing the bracket. Next, the operator rotates the bidirectional threaded rod 101, causing the sleeve 102 to drive the clamping plate 103 to clamp the dial indicator body 11, so that it will not move easily and affect the subsequent testing of the bracket. This effectively improves the testing effect of the device. When the angle of the dial indicator body 11 needs to be adjusted, the operator rotates the connecting shell 9. Under the action of the connecting shell 9, the rotating frame 7 will rotate. Under the action of pressure, the positioning ball 63 will disengage from the inside of the positioning groove 8. After the dial indicator body 11 is adjusted to a suitable angle, with the cooperation of the compression spring 61 and the movable block 62, the positioning ball 63 will re-enter the inside of the positioning groove 8, thereby fixing the connecting shell 9. This facilitates the adjustment and control of the angle of the dial indicator body 11, which is convenient for the subsequent testing of the bracket by the dial indicator body 11.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] 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 support pre-stress deformation monitoring device, comprising a mounting bracket (1) and positioning holes (2) formed on its surface, characterized in that, Also includes: A positioning rod (3) slides in the inner cavity of the positioning hole (2). A fixing plate (4) is fixedly connected to the top of the positioning rod (3). A fixing shell (5) is fixedly connected to the top of the fixing plate (4). Positioning mechanisms (6) are installed on both sides of the inner cavity of the fixing shell (5). A rotating frame (7) is rotatably connected to the top of the fixing plate (4). A positioning groove (8) is opened on the inner wall of the rotating frame (7). A connecting shell (9) is fixedly connected to the top of the rotating frame (7). A clamping mechanism (10) is provided inside the connecting shell (9). A dial gauge body (11) is provided inside the clamping mechanism (10).
2. The support pre-stress deformation monitoring device according to claim 1, characterized in that: The positioning mechanism (6) includes a compression spring (61) fixed to the inner wall of the fixed shell (5), and a movable block (62) is fixedly connected to the other end of the compression spring (61). A positioning ball (63) is fixedly connected to the surface of the movable block (62).
3. The support pre-stress deformation monitoring device according to claim 1, characterized in that: The clamping mechanism (10) includes a bidirectional threaded rod (101) that rotates within the cavity of the connecting shell (9). A sleeve (102) is threaded to two points on the surface of the bidirectional threaded rod (101), and a clamping plate (103) is fixedly connected to the top of the sleeve (102).
4. The support pre-stress deformation monitoring device according to claim 3, characterized in that: Guide grooves (14) are provided on both sides of the inner cavity of the connecting shell (9). A guide block (15) is fixedly connected to the surface of the sleeve (102). The surface of the guide block (15) is slidably connected to the inner wall of the guide groove (14).
5. The support pre-stress deformation monitoring device according to claim 3, characterized in that: A protective pad (13) is fixedly connected to one side of the clamp (103), and the protective pad (13) is a flexible structure design.
6. The support pre-stress deformation monitoring device according to claim 3, characterized in that: One end of the bidirectional threaded rod (101) is fixedly connected to a bearing seat (12), and the other side of the bearing seat (12) is fixedly connected to the inner wall of the connecting shell (9).