Segmental beam hoisting hole positioning fixture
By using an infrared LED transmitter and receiver in the segmental beam hoisting hole positioning fixture, combined with a clamping mechanism, the problem of inaccurate positioning under strong light was solved, achieving efficient positioning and alignment under strong light conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-24
AI Technical Summary
The existing segmental beam hoisting hole positioning fixtures have reduced laser beam visibility under strong sunlight, affecting positioning accuracy.
By employing an infrared LED transmitter and receiver, combined with a clamping mechanism, the positioning fixture can be quickly disassembled and aligned, and stable positioning can be achieved under strong light by utilizing an infrared light source.
Infrared light sources are less affected by visible light, making them suitable for use in strong sunlight, which improves the positioning accuracy and ease of operation of positioning devices.
Smart Images

Figure CN224030511U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to positioning fixture technical field, concretely is a kind of segmental beam hoisting hole positioning fixture. BACKGROUND
[0002] Segmental beam is the segmental prefabrication of bridge superstructure, and is connected by wet joint, glue joint or dry joint, and finally forms the whole structure by longitudinal prestress tension.
[0003] The existing segmental beam hoisting hole positioning fixture usually includes support, movable plate, crossbeam, positioning plate and the like, a plurality of positioning holes with equal intervals are arranged on these components, so as to adjust the distance between positioning plates, realize the accurate positioning of hoisting hole, for example, the Chinese patent (a segmental beam hoisting hole positioning fixture) with the announcement number CN 215756015U includes support, movable plate, crossbeam, positioning plate, a plurality of positioning holes with equal intervals are arranged on support, movable plate and crossbeam, the side of support is provided with crossbeam, positioning plate is installed on support and crossbeam, first positioning plate is fixedly installed at the corner of support, second positioning plate is bolted with crossbeam, the other side of support is provided with long slot, movable plate is installed in long slot, third positioning plate and fourth positioning plate are installed on movable plate, third positioning plate is fixedly installed at the side of movable plate, fourth positioning plate is bolted with movable plate, the utility model is convenient for adjusting the distance between positioning plates, and can align the positioning fixture, has broad market prospect.
[0004] The positioning fixture of the above-mentioned prior art is positioned by laser, since the hoisting of segmental beam is in outdoor, under the strong sunlight, the visibility of laser beam can be reduced, so that the operator is difficult to clearly see the pointing direction of laser beam, thereby affecting the accuracy of positioning, therefore, a segmental beam hoisting hole positioning fixture is proposed. SUMMARY
[0005] (I) technical problem solved
[0006] In view of the deficiencies of prior art, the utility model provides a segmental beam hoisting hole positioning fixture to solve the problems proposed in the above background art.
[0007] (II) technical scheme
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a segmental beam hoisting hole positioning fixture, comprising:
[0009] The frame, infrared LED emitter and infrared receiver, the first positioning plate is fixedly installed at the left top corner in the inside of the frame, the slide rail frame is fixedly installed on the left side in the inside of the frame, the second positioning plate is arranged between the slide rail frame and the frame;
[0010] The sliding groove is arranged at the front and back ends of the interior of the square frame, the interior of the square frame is provided with a movable frame, the upper end top of the movable frame is fixedly installed with a third positioning plate, and the interior of the movable frame is provided with a fourth positioning plate;
[0011] The clamping mechanism is fixedly installed at the lower end of the infrared LED emitter and the infrared receiver respectively, the clamping mechanism comprises a fixed plate, the lower end of the fixed plate is fixedly installed with a side frame, the interior of the side frame is slidably installed with a clamping plate, the interior of the side frame is rotatably installed with an adjusting screw, the adjusting screw is connected with the clamping plate through thread cooperation, and the exterior of one side of the infrared receiver is fixedly installed with a buzzer.
[0012] Preferably, the first positioning plate, the second positioning plate, the third positioning plate and the fourth positioning plate are internally provided with through holes.
[0013] Preferably, the left and right ends of the second positioning plate, the front and back ends of the movable frame and the left and right ends of the fourth positioning plate are fixedly installed with sliding blocks.
[0014] Preferably, the sliding blocks at the left and right ends of the second positioning plate are slidably connected with the square frame and the sliding rail frame, the sliding blocks at the left and right ends of the fourth positioning plate are slidably connected with the movable frame, the sliding blocks at the front and back ends of the movable frame are movably connected with the sliding grooves, and the sliding blocks make the movement of the first positioning plate, the second positioning plate, the third positioning plate and the fourth positioning plate more stable.
[0015] Preferably, the square frame, the sliding rail frame and the movable frame are internally provided with equidistantly distributed screw holes at the upper ends of the sliding blocks, and the screw holes are used for limiting and fixing the second positioning plate, the fourth positioning plate and the movable frame.
[0016] Preferably, the exterior of the sliding blocks at the front and back ends of the movable frame is fixedly installed with side frames, the interior of the side frames is rotatably installed with sliding rollers, the sliding rollers are attached to the outer wall of the square frame, and the sliding rollers make the sliding of the movable frame more stable.
[0017] (Three) beneficial effects
[0018] Compared with the prior art, the utility model provides a segmental beam hoisting hole positioning fixture, has the following beneficial effects:
[0019] The utility model discloses a clamping mechanism makes infrared LED emitter and infrared receiver can be quickly disassembled outside positioning fixture and segmental beam, thereby being convenient for positioning and aligning the positioning plate in the positioning fixture, being convenient for positioning and aligning positioning fixture and segmental beam, and the light source of infrared LED generator is less interfered by visible light, is more suitable for using under strong sunlight, and solves the problem in the background art. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1The utility model discloses a whole structure perspective view;
[0021] Figure 2 The utility model discloses a side frame and slide roll structure perspective view;
[0022] Figure 3 The utility model discloses an infrared LDF emitter perspective view;
[0023] Figure 4 The utility model discloses an infrared receiver perspective view.
[0024] In the drawing: 1, square frame;2, first positioning plate;3, slide rail frame;4, second positioning plate;5, movable frame;6, third positioning plate;7, fourth positioning plate;8, sliding groove;9, sliding block;10, side frame;11, slide roll;12, fixed plate;13, side frame;14, clamping plate;15, adjusting screw;16, infrared LED emitter;17, infrared receiver;18, buzzer. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the utility model.
[0026] The utility model provides a technical scheme, a segmental beam hoist hole positioning fixture, please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4 , comprising:
[0027] Square frame 1, infrared LED emitter 16 and infrared receiver 17, the left end corner in the inside of square frame 1 is fixedly installed with first positioning plate 2, the inside left side of square frame 1 is fixedly installed with slide rail frame 3, and second positioning plate 4 is arranged between slide rail frame 3 and square frame 1;
[0028] Sliding groove 8 is opened in the inside front and back ends of square frame 1, movable frame 5 is arranged in the inside of square frame 1, third positioning plate 6 is fixedly installed at the upper end top of movable frame 5, and fourth positioning plate 7 is arranged in the inside of movable frame 5;
[0029] The clamping mechanism is respectively fixedly installed at the lower end of the infrared LED emitter 16 and the infrared receiver 17, and comprises a fixed plate 12, a side frame 13 fixedly installed at the lower end of the fixed plate 12, a clamping plate 14 slidably installed in the side frame 13, and an adjusting screw 15 rotatably installed in the side frame 13 and threadedly connected with the clamping plate 14.
[0030] Please refer to Figure 1 The first positioning plate 2, the second positioning plate 4, the third positioning plate 6 and the fourth positioning plate 7 are internally provided with through holes.
[0031] Please refer to Figure 1 The left and right ends of the second positioning plate 4, the front and rear ends of the movable frame 5 and the left and right ends of the fourth positioning plate 7 are fixedly installed with sliding blocks 9.
[0032] Please refer to Figure 1 The sliding blocks 9 located at the left and right ends of the second positioning plate 4 are slidably connected with the square frame 1 and the slide rail frame 3, the sliding blocks 9 located at the left and right ends of the fourth positioning plate 7 are slidably connected with the movable frame 5, and the sliding blocks 9 located at the front and rear ends of the movable frame 5 are movably connected with the sliding grooves 8, so that the movement of the first positioning plate 2, the second positioning plate 4, the third positioning plate 6 and the fourth positioning plate 7 is more stable.
[0033] Please refer to Figure 1 The square frame 1, the slide rail frame 3 and the movable frame 5 are internally provided with equidistantly distributed screw holes at the upper end of the sliding blocks 9, and the screw holes are used for limiting and fixing the second positioning plate 4, the fourth positioning plate 7 and the movable frame 5.
[0034] Please refer to Figure 1 The movable frame 5 is externally provided with side frames 10 at the front and rear ends of the sliding blocks 9, the side frames 10 are internally provided with slide rollers 11 rotatably installed at both sides, and the slide rollers 11 are attached to the outer wall of the square frame 1, so that the sliding of the movable frame 5 is more stable.
[0035] The present scheme: according to the hoisting tool, the interval of the first positioning plate 2 and the second positioning plate 4 and the interval of the first positioning plate 2 and the third positioning plate 6 are set, the movable frame 5 and the second positioning plate 4 are fixed by bolts, the infrared LED emitter 16 is installed outside the second positioning plate 4 through the clamping mechanism, the infrared receiver 17 is installed at the corresponding position outside the fourth positioning plate 7 through the clamping mechanism, the infrared LED emitter 16 and the infrared receiver 17 are turned on, the position of the fourth positioning plate 7 is adjusted, when the infrared light of the infrared LED emitter 16 coincides with the infrared receiver 17, the buzzer 18 emits sound, so as to determine that the position of the fourth positioning plate 7 is accurate, then the fourth positioning plate 7 is fixed by using bolts, the two clamping mechanisms are disassembled, the positioning fixture is placed on the segmental beam steel reinforcement support, the clamping mechanism at the lower end of the infrared LED emitter 16 is installed outside the square frame 1, the clamping mechanism at the lower end of the infrared receiver 17 is installed at the corresponding position outside the segmental beam steel reinforcement support, the horizontal and vertical positions of the positioning fixture relative to the segmental beam are adjusted through the infrared LED emitter 16 and the infrared receiver 17, after the adjustment is completed, the hoisting positioning column is punched into the through hole through the through hole of the positioning plate, after the positioning column is punched, the operator holds the handle to take out the positioning fixture.
[0036] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0037] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace, and vary in many ways without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A segmental beam hoisting hole positioning fixture, characterized in that, Include: The block (1), infrared LED emitter (16) and infrared receiver (17), the first positioning plate (2) is fixedly installed at the left end of the inside top corner of the block (1), the slide rail frame (3) is fixedly installed on the inside left of the block (1), the second positioning plate (4) is arranged between the slide rail frame (3) and the block (1); The sliding groove (8) is opened in the inside front and back of the block (1), the movable frame (5) is arranged in the inside of the block (1), the third positioning plate (6) is fixedly installed on the upper end of the movable frame (5), the fourth positioning plate (7) is arranged in the inside of the movable frame (5); The clamping mechanism is fixedly installed on the lower end of the infrared LED emitter (16) and the infrared receiver (17) respectively, the clamping mechanism includes the fixed plate (12), the side frame (13) is fixedly installed on the lower end of the fixed plate (12), the clamping plate (14) is slidably installed in the inside of the side frame (13), the adjusting screw (15) is rotatably installed in the inside of the side frame (13), and the adjusting screw (15) and the clamping plate (14) are connected through thread cooperation, the buzzer (18) is fixedly installed on the outside of the infrared receiver (17).
2. A segmental beam hoisting hole positioning fixture according to claim 1, characterized in that: The first positioning plate (2), the second positioning plate (4), the third positioning plate (6) and the fourth positioning plate (7) are all provided with through holes in the inside.
3. A segmental beam hoisting hole positioning fixture according to claim 1, characterized in that: The left and right ends of the second positioning plate (4), the front and back ends of the movable frame (5) and the left and right ends of the fourth positioning plate (7) are all fixedly installed with sliding blocks (9).
4. A segmental beam hoisting hole positioning fixture according to claim 1, characterized in that: The sliding blocks (9) located at the left and right ends of the second positioning plate (4) are slidably connected with the block (1) and the slide rail frame (3), the sliding blocks (9) located at the left and right ends of the fourth positioning plate (7) are slidably connected with the movable frame (5), and the sliding blocks (9) located at the front and back ends of the movable frame (5) are movably connected with the sliding groove (8).
5. A segmental beam lifting hole positioning fixture according to claim 4, characterised in that: The block (1), the slide rail frame (3) and the movable frame (5) are all provided with equidistantly distributed screw holes on the upper end of the sliding block (9).
6. A segmental beam lifting hole positioning fixture according to claim 1, characterized in that: The side frame (10) is fixedly installed on the outside of the sliding block (9) located at the front and back ends of the movable frame (5), the sliding rollers (11) are rotatably installed on the inside of the side frame (10), and the sliding rollers (11) are attached to the outer wall of the block (1).
Citation Information
Patent Citations
Segmental beam hoisting hole positioning fixture
CN215756015U