Bridge expansion joint construction device
By designing a bridge expansion joint construction device and utilizing components such as an automatic expansion mechanism and a ruler, the problem of low efficiency in bridge expansion joint measurement and construction was solved, achieving efficient and accurate measurement results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN COMM RES INST CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-06-12
Smart Images

Figure CN224353736U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction equipment technology, specifically a bridge expansion joint construction device. Background Technology
[0002] Bridge expansion joints are installed to accommodate bridge deck deformation and are typically placed between the ends of two beams, between a beam end and an abutment, or at hinged joints of the bridge. The construction of expansion joints involves a series of operations, including cleaning the expansion joint groove, measuring, installing reinforcing bars, installing formwork, and pouring concrete.
[0003] Based on the above, the inventors have discovered the following problems: Currently, when measuring bridge expansion joints, most measurements are done manually by construction workers using a measuring tape, which has low alignment efficiency and affects user experience.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a bridge expansion joint construction device in order to achieve a more practical value. Utility Model Content
[0005] The purpose of this utility model is to provide a bridge expansion joint construction device to solve the problem mentioned in the background art that the current bridge expansion joint measurement is mostly done manually by construction personnel using a tape measure, which has low alignment efficiency and affects user use.
[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0007] A bridge expansion joint construction device, comprising:
[0008] A crossbar, with a first measuring rod installed on one side of its bottom end and a second measuring rod provided on the other side of its bottom end, an automatic expansion mechanism connected between the first and second measuring rods, and a handle installed at the top of the crossbar;
[0009] A translation mechanism includes a slide rail, one side of which is fixedly connected to one side of a crossbar. A sliding sleeve is slidably connected to the outer side of the slide rail. A connecting frame is installed at one end of one side of the sliding sleeve. One end of the connecting frame is fixedly connected to one side of a second measuring rod. A threaded hole is opened at the other end of one side of the sliding sleeve, and a locking bolt is installed inside the threaded hole.
[0010] Furthermore, the automatic expansion mechanism includes a spring, and limit sleeves are installed on the adjacent top ends of the first and second measuring rods, and the two ends of the spring are respectively fixedly connected to the inner sides of a pair of limit sleeves.
[0011] The beneficial effect of adopting the above-mentioned further solution is that by fixing the two ends of the spring to the inner side of a pair of limiting sleeves respectively, the elastic force of the spring causes the first measuring rod and the second measuring rod to automatically expand outward, which can closely fit the two side walls of the expansion joint and ensure the accuracy of the measurement.
[0012] Furthermore, the slide rail is T-shaped.
[0013] The beneficial effect of adopting the above-mentioned further solution is that by using a "T"-shaped slide rail, the movement stability of the slide sleeve is improved.
[0014] Furthermore, the bottom ends of adjacent sides of both the first and second measuring rods are inclined.
[0015] The advantage of adopting the above-mentioned further solution is that, since the bottom ends of the adjacent sides of the first and second measuring rods are both inclined, it is convenient to insert the measuring rods into the expansion joint, thus improving the convenience of measurement.
[0016] Furthermore, a retaining seat is installed on one side of the top end of the crossbar, and a bubble tube is installed on the inner side of the retaining seat.
[0017] The advantage of adopting the above-mentioned further solution is that, by installing a bubble tube on the inner side of the holder, the position of the bubble in the bubble tube can be observed during measurement, and the device can be adjusted to keep it horizontal, thereby ensuring the accuracy of the measurement.
[0018] Furthermore, a scale is installed at the top of one side of the crossbar, and a pointer is installed at the top of one side of the sliding sleeve.
[0019] The beneficial effect of adopting the above-mentioned further solution is that, by setting the scale and pointer, the distance between the first and second measuring rods, i.e. the width of the bridge expansion joint, can be read intuitively and accurately, thus improving the readability and accuracy of the measurement results.
[0020] Furthermore, a silicone sleeve is fitted onto the outer side of the grip, and the outer side of the silicone sleeve has an anti-slip texture. The advantage of this further solution is that by fitting a silicone sleeve onto the outer side of the grip, the grip's anti-slip properties are improved.
[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: This bridge expansion joint construction device, through the setting of a first measuring rod and a second measuring rod, is used to measure the width of the bridge expansion joint. Through the arrangement of a slide rail, a sliding sleeve, and a connecting frame, the position of the second measuring rod can be flexibly adjusted to adapt to the measurement needs of expansion joints of different widths. A locking bolt is installed on the inner side of the threaded hole, so that after the position of the second measuring rod is adjusted, tightening the locking bolt can fix the sliding sleeve on the slide rail, thereby fixing the position of the second measuring rod and facilitating accurate reading of measurement data. Through the fixed connection of the two ends of a spring to the inner side of a pair of limiting sleeves, the elastic force of the spring causes the first and second measuring rods to automatically expand outward, tightly fitting the two side walls of the expansion joint and ensuring accurate measurement. The device features a T-shaped slide rail to improve the stability of the sliding sleeve. The inclined bottom ends of the adjacent sides of the first and second measuring rods facilitate insertion into the expansion joint, enhancing measurement convenience. An air bubble tube installed inside the retaining seat allows for observation of the bubble's position during measurement, enabling adjustment to keep the device horizontal and ensuring measurement accuracy. The scale and pointer allow for intuitive and accurate reading of the distance between the first and second measuring rods, i.e., the width of the bridge expansion joint, improving readability and precision. A silicone sleeve on the outer side of the handle enhances grip and prevents slippage. This invention effectively achieves automatic expansion measurement, improving measurement efficiency and possessing high practical value. Attached Figure Description
[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams disclosed in the embodiments of this utility model;
[0023] Figure 2 This is the second three-dimensional structural schematic diagram disclosed in the embodiment of this utility model;
[0024] Figure 3 The embodiments disclosed herein Figure 1 Enlarged schematic diagram of structure A in the middle;
[0025] Figure 4 The embodiments disclosed herein Figure 2 A magnified schematic diagram of the B-structure.
[0026] In the diagram: 100, crossbar; 101, first measuring rod; 102, second measuring rod; 103, translation mechanism; 10301, slide rail; 10302, sliding sleeve; 10303, threaded hole; 10304, locking bolt; 10305, connecting bracket; 104, automatic expansion mechanism; 10401, spring; 10402, limit sleeve; 105, scale; 106, pointer; 107, retaining seat; 108, bubble tube; 109, handle; 110, silicone sleeve. Detailed Implementation
[0027] 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.
[0028] Please see Figures 1-4 This utility model provides a technical solution: a bridge expansion joint construction device, comprising: a crossbar 100, a first measuring rod 101 installed on one side of the bottom end of the crossbar 100, a second measuring rod 102 provided on the other side of the bottom end of the crossbar 100, an automatic expansion mechanism 104 connected between the first measuring rod 101 and the second measuring rod 102, and a handle 109 installed on the top end of the crossbar 100; a translation mechanism 103, comprising a slide rail 10301, one side of the slide rail 10301 being fixedly connected to one side of the crossbar 100, a sliding sleeve 10302 slidably connected to the outer side of the slide rail 10301, a connecting frame 10305 installed at one end of one side of the sliding sleeve 10302, and one end of the connecting frame 10305 being fixedly connected to one side of the second measuring rod 102. A threaded hole 10303 is provided at one end of the sliding sleeve 10302. A locking bolt 10304 is installed inside the threaded hole 10303. The first measuring rod 101 and the second measuring rod 102 are used to measure the width of the bridge expansion joint. The position of the second measuring rod 102 can be flexibly adjusted by the sliding rail 10301, the sliding sleeve 10302 and the connecting frame 10305 to meet the measurement needs of expansion joints of different widths. The locking bolt 10304 installed inside the threaded hole 10303 can fix the sliding sleeve 10302 on the sliding rail 10301 after the position of the second measuring rod 102 is adjusted, thereby fixing the position of the second measuring rod 102 and facilitating accurate reading of measurement data.
[0029] 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.
[0030] Please see Figures 1-4The automatic expansion mechanism 104 includes a spring 10401. Limit sleeves 10402 are installed on the adjacent top ends of the first measuring rod 101 and the second measuring rod 102. The two ends of the spring 10401 are fixedly connected to the inner sides of the pair of limit sleeves 10402. The slide rail 10301 is T-shaped. The adjacent bottom ends of the first measuring rod 101 and the second measuring rod 102 are inclined. By fixing the two ends of the spring 10401 to the inner sides of the pair of limit sleeves 10402, the elastic force of the spring 10401 causes the first measuring rod 101 and the second measuring rod 102 to automatically expand outwards, tightly fitting the two side walls of the expansion joint and ensuring measurement accuracy. The T-shaped slide rail 10301 improves the movement stability of the slide sleeve 10302. The inclined bottom ends of the adjacent sides of the first measuring rod 101 and the second measuring rod 102 facilitate insertion of the measuring rod into the expansion joint, improving measurement convenience.
[0031] 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.
[0032] Please see Figures 1-4 A retaining seat 107 is installed on one side of the top of the crossbar 100, and a bubble tube 108 is installed on the inner side of the retaining seat 107. A scale 105 is installed on the top of one side of the crossbar 100, and a pointer 106 is installed on one side of the top of the sliding sleeve 10302. A silicone sleeve 110 is fitted on the outer side of the handle 109, and the outer side of the silicone sleeve 110 has anti-slip texture. By installing the bubble tube 108 on the inner side of the retaining seat 107, the position of the bubble in the bubble tube 108 can be observed during measurement, and the device can be adjusted to keep it horizontal, thereby ensuring the accuracy of the measurement. With the setting of the scale 105 and the pointer 106, the distance between the first measuring rod 101 and the second measuring rod 102, i.e. the width of the bridge expansion joint, can be read intuitively and accurately, improving the readability and accuracy of the measurement results. The silicone sleeve 110 on the outer side of the handle 109 improves the grip and anti-slip properties.
[0033] Specifically, the working principle of this bridge expansion joint construction device is as follows: During use, the first measuring rod 101 and the second measuring rod 102 are used to measure the width of the bridge expansion joint. The position of the second measuring rod 102 can be flexibly adjusted via the slide rail 10301, sliding sleeve 10302, and connecting frame 10305 to accommodate expansion joints of different widths. A locking bolt 10304 is installed inside the threaded hole 10303. After adjusting the position of the second measuring rod 102, tightening the locking bolt 10304 fixes the sliding sleeve 10302 onto the slide rail 10301, thus fixing the position of the second measuring rod 102 for accurate measurement data reading. The two ends of the spring 10401 are fixedly connected to the inner sides of a pair of limiting sleeves 10402, allowing the spring force of the spring 10401 to automatically expand the first measuring rod 101 and the second measuring rod 102 outwards, ensuring a tight fit within the expansion joint. The two side walls of the joint ensure measurement accuracy. The "T"-shaped slide rail 10301 improves the movement stability of the slide sleeve 10302. The adjacent bottom ends of the first measuring rod 101 and the second measuring rod 102 are inclined, facilitating insertion of the measuring rod into the expansion joint and improving measurement convenience. The bubble tube 108 installed on the inner side of the retaining seat 107 allows for observation of the bubble position during measurement, enabling adjustment of the device to maintain horizontality and ensuring measurement accuracy. The scale 105 and pointer 106 allow for intuitive and accurate reading of the distance between the first measuring rod 101 and the second measuring rod 102, i.e., the width of the bridge expansion joint, improving the readability and accuracy of the measurement results. The silicone sleeve 110 fitted on the outer side of the handle 109 improves grip and anti-slip properties. This utility model can effectively realize automatic expansion measurement function, improve measurement efficiency, and has high practical value.
Claims
1. A bridge expansion joint construction device, characterized in that, include: A crossbar (100) is provided with a first measuring rod (101) installed on one side of the bottom end of the crossbar (100) and a second measuring rod (102) provided on the other side of the bottom end of the crossbar (100). An automatic expansion mechanism (104) is connected between the first measuring rod (101) and the second measuring rod (102). A handle (109) is installed on the top end of the crossbar (100). A translation mechanism (103) includes a slide rail (10301), one side of which is fixedly connected to one side of a crossbar (100). A sliding sleeve (10302) is slidably connected to the outer side of the slide rail (10301). A connecting frame (10305) is installed at one end of one side of the sliding sleeve (10302). One end of the connecting frame (10305) is fixedly connected to one side of a second measuring rod (102). A threaded hole (10303) is opened at the other end of one side of the sliding sleeve (10302). A locking bolt (10304) is installed on the inner side of the threaded hole (10303).
2. The bridge expansion joint construction device according to claim 1, characterized in that, The automatic expansion mechanism (104) includes a spring (10401). Limit sleeves (10402) are installed on the adjacent top ends of the first measuring rod (101) and the second measuring rod (102). The two ends of the spring (10401) are respectively fixedly connected to the inner side of a pair of limit sleeves (10402).
3. The bridge expansion joint construction device according to claim 1, characterized in that, The slide rail (10301) is T-shaped.
4. A bridge expansion joint construction device according to claim 1, characterized in that, The bottom ends of adjacent sides of the first measuring rod (101) and the second measuring rod (102) are both inclined.
5. A bridge expansion joint construction device according to claim 1, characterized in that, A retaining seat (107) is installed on one side of the top end of the crossbar (100), and a bubble tube (108) is installed on the inner side of the retaining seat (107).
6. A bridge expansion joint construction device according to claim 1, characterized in that, A scale (105) is installed on one side of the top of the crossbar (100), and a pointer (106) is installed on one side of the top of the sliding sleeve (10302).
7. A bridge expansion joint construction device according to claim 1, characterized in that, The grip (109) is fitted with a silicone sleeve (110) on the outside, and the silicone sleeve (110) has an anti-slip texture on the outside.