Spacing-adjustable lower suspended beam template fixing device
By designing an adjustable lower-hung beam formwork fixing device, the problem of inaccurate dimension adjustment in the lower-hung beam construction is solved, and the stable fixation and safety improvement of the formwork is achieved, adapting to the needs of lower-hung beams of different sizes.
Patent Information
- Application Number
- CN202422619826.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-29
AI Technical Summary
In the construction of lower-hung beams, it is difficult for the prior art to effectively control the forming quality and safety of lower-hung beams of different sizes. Especially when using a buckle scaffold, there are errors in the adjustment step distance and the position of the main and secondary keels, resulting in the unsolid fixation of the template.
A lower-hung beam formwork fixing device with adjustable spacing is designed, including the main keel at the bottom of the beam and the adjustable first and second adjustment brackets. Through oblique, vertical and transverse adjustment pipe components, the steel plate is connected with inverted U-shaped support to achieve flexible adjustment of the template spacing and height.
The structural safety of the lower hanging beam formwork is improved, the risk of structural failure caused by concrete defects is reduced, and the stability of the bottom formwork support is enhanced, simplifying the construction process.
Smart Images
Figure CN223269607U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field related to building construction, and in particular to a fixing device for a lower hanging beam template with adjustable spacing. Background Art
[0002] Concrete beams are a crucial component of building structures, and their quality directly impacts the overall safety and durability of the structure. During residential construction, underhang beams vary in cross-sectional dimensions. Using conventional formwork frames and formwork can be challenging on-site and provide limited control over quality and safety.
[0003] Taking the disc-type scaffolding as an example, during the construction of concrete lower hanging beam formwork, when encountering lower hanging beams of different sizes, the corresponding scaffolding step distance and crossbar height need to be adjusted to finally determine the positions of the primary and secondary keels. Errors and weak reinforcement are inevitable during operation, resulting in the size and molding quality of the lower hanging beams being out of control. Utility Model Content
[0004] In order to solve one or more technical problems in the prior art, the utility model provides a fixing device for a lower hanging beam template with adjustable spacing.
[0005] The technical solution of the utility model to solve the above technical problems is as follows: a fixing device for a lower hanging beam template with adjustable spacing, comprising a main keel at the bottom of the beam, a first adjustment bracket and a second adjustment bracket;
[0006] The first adjustment bracket includes a first main sleeve and a first L-shaped adjustment sleeve, one end of the first main sleeve is fixedly connected to one end of the main keel at the bottom of the beam and is arranged obliquely toward the top of the main keel at the bottom of the beam, the first L-shaped adjustment sleeve is slidably arranged on the main keel at the bottom of the beam through a first sliding support, and the first L-shaped adjustment sleeve is connected to the first main sleeve through a first adjustment tube assembly to adjust the distance between the first main sleeve and the first L-shaped adjustment sleeve;
[0007] The second adjustment bracket includes a second main sleeve and a second L-shaped adjustment sleeve, one end of the second main sleeve is fixedly connected to the other end of the main keel at the bottom of the beam and is arranged inclined toward the upper side of the main keel at the bottom of the beam, and the second L-shaped adjustment sleeve is slidably set on the main keel at the bottom of the beam through a second sliding support member, and the second L-shaped adjustment sleeve and the second main sleeve are connected through a second adjustment tube assembly to adjust the distance between the second main sleeve and the second L-shaped adjustment sleeve.
[0008] The beneficial effects of this utility model are as follows: using the adjustable spacing lower beam formwork fixing device of the utility model can improve structural safety during the installation of the lower beam formwork and reduce the risk of structural failure caused by concrete defects. In addition, this adjustable beam formwork fixing device can be used without considering the longitudinal pitch adjustment of the scaffolding, making the bottom formwork support more stable.
[0009] On the basis of the above technical solution, the present invention can also be improved as follows.
[0010] Furthermore, the first adjustment assembly includes a first oblique adjustment tube, a first vertical adjustment tube, and a first transverse adjustment tube. The first L-shaped adjustment sleeve includes a first vertical tube and a first transverse tube vertically connected. A first sliding support is provided on a side of the first transverse tube facing away from the first vertical tube.
[0011] The first oblique adjustment tube and the other end of the first main sleeve are sleeved together and connected by a first bolt, the first vertical adjustment tube and the first vertical tube are sleeved together and connected by a first bolt, and the first transverse adjustment tube and the first transverse tube are sleeved together and connected by a first bolt; the free end of the first vertical adjustment tube and the free end of the first oblique adjustment tube are connected by a first bolt, and the free end of the first transverse adjustment tube and the first oblique adjustment tube are connected by a first bolt.
[0012] The beneficial effect of adopting the above further solution is that the structural arrangement of the coordinated oblique adjustment tube, the vertical adjustment tube and the horizontal adjustment tube facilitates the adjustment of the spacing in the horizontal direction.
[0013] Furthermore, the first main sleeve, the first L-shaped adjustment sleeve, the first oblique adjustment tube, the first vertical adjustment tube and the first transverse adjustment tube are respectively provided with a plurality of first adjustment holes arranged at equal intervals.
[0014] The beneficial effect of adopting the above further solution is that by providing the first adjustment hole, the locking and fixation between the various pipes can be facilitated after adjustment.
[0015] Furthermore, the free end of the first vertical tube is connected to a first reinforcing support tube, and the other end of the first main sleeve is connected to a first reinforcing adjustment tube. The first reinforcing support tube and the first reinforcing adjustment tube are sleeved on each other and connected by a first bolt.
[0016] The beneficial effect of adopting the above further solution is that the structural strength is further enhanced by providing the reinforced support tube and the reinforced adjustment tube.
[0017] Furthermore, the first reinforcement support tube and the first reinforcement adjustment tube are respectively provided with a plurality of first adjustment holes arranged at equal intervals.
[0018] Furthermore, the second adjustment assembly includes a second oblique adjustment tube, a second vertical adjustment tube, and a second transverse adjustment tube. The second L-shaped adjustment sleeve includes a second vertical tube and a second transverse tube vertically connected to each other. A second sliding support is provided on a side of the second transverse tube facing away from the second vertical tube.
[0019] The second oblique adjustment tube and the other end of the second main sleeve are sleeved together and connected by a second bolt, the second vertical adjustment tube and the second vertical tube are sleeved together and connected by a second bolt, and the second transverse adjustment tube and the second transverse tube are sleeved together and connected by a second bolt; the free end of the second vertical adjustment tube and the free end of the second oblique adjustment tube are connected by a second bolt, and the free end of the second transverse adjustment tube and the second oblique adjustment tube are connected by a second bolt.
[0020] The beneficial effect of adopting the above further solution is that the structural arrangement of the coordinated oblique adjustment tube, the vertical adjustment tube and the horizontal adjustment tube facilitates the adjustment of the spacing in the horizontal direction.
[0021] Furthermore, the second main sleeve, the second L-shaped adjustment sleeve, the second oblique adjustment tube, the second vertical adjustment tube and the second transverse adjustment tube are respectively provided with a plurality of second adjustment holes arranged at equal intervals.
[0022] The beneficial effect of adopting the above further solution is that by providing the second adjustment hole, the locking and fixation between the various pipes can be facilitated after adjustment.
[0023] Furthermore, the free end of the second vertical tube is connected to a second reinforcing support tube, and the other end of the second main sleeve is connected to a second reinforcing adjustment tube. The second reinforcing support tube and the second reinforcing adjustment tube are sleeved on each other and connected by a second bolt.
[0024] The beneficial effect of adopting the above further solution is that the structural strength is further enhanced by providing the reinforced support tube and the reinforced adjustment tube.
[0025] Furthermore, the second reinforcement support tube and the second reinforcement adjustment tube are respectively provided with a plurality of second adjustment holes arranged at equal intervals.
[0026] Furthermore, an inverted U-shaped support connecting steel plate is provided on the side of the main keel at the bottom of the beam away from the first adjustment bracket and the second adjustment bracket; the first sliding support member and the second sliding support member are both inverted U-shaped sliding support steel plates.
[0027] The beneficial effects of adopting the above further solution are: by setting up an inverted U-shaped support connecting steel plate, it is convenient to connect and support with the scaffolding cross bar, and by adopting an inverted U-shaped sliding support steel plate, it is convenient to slide and support with the main keel at the bottom of the beam. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of the main structure of the utility model's spacing-adjustable lower hanging beam template fixing device;
[0029] Figure 2 This is a schematic diagram of the main structure of the first L-shaped adjustment sleeve of the utility model;
[0030] Figure 3 This is a structural schematic diagram of the use status of the spacing-adjustable lower hanging beam template fixing device of the utility model.
[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0032] 1. Main keel at the bottom of the beam;
[0033] 2. First adjustment bracket; 20. First main sleeve; 21. First sliding support; 22. First oblique adjustment tube; 23. First vertical adjustment tube; 24. First transverse adjustment tube; 25. First vertical tube; 26. First transverse tube; 27. First reinforcement support tube; 28. First reinforcement adjustment tube; 29. First adjustment hole; 290. First bolt;
[0034] 3. Second adjustment bracket; 30. Second main sleeve; 31. Second sliding support; 32. Second oblique adjustment tube; 33. Second vertical adjustment tube; 34. Second transverse adjustment tube; 35. Second vertical tube; 36. Second transverse tube; 37. Second reinforcement support tube; 38. Second reinforcement adjustment tube; 39. Second adjustment hole; 390. Second bolt;
[0035] 4. Inverted U-shaped support connecting steel plate; 5. Lower hanging beam; 51. Wooden square; 52. Lower hanging beam formwork; 6. Scaffolding cross bar; 7. Scaffolding vertical bar. DETAILED DESCRIPTION
[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0037] like Figures 1 to 3 As shown, a spacing-adjustable lower hanging beam formwork fixing device of this embodiment includes a beam bottom main keel 1, a first adjustment bracket 2 and a second adjustment bracket 3;
[0038] The first adjustment bracket 2 includes a first main sleeve 20 and a first L-shaped adjustment sleeve. One end of the first main sleeve 20 is fixedly connected to one end of the main keel 1 at the bottom of the beam and is arranged obliquely toward the top of the main keel 1 at the bottom of the beam. The first L-shaped adjustment sleeve is slidably arranged on the main keel 1 at the bottom of the beam through a first sliding support 21. The first L-shaped adjustment sleeve is connected to the first main sleeve 20 through a first adjustment tube assembly to adjust the distance between the first main sleeve 20 and the first L-shaped adjustment sleeve.
[0039] The second adjustment bracket 3 includes a second main sleeve 30 and a second L-shaped adjustment sleeve. One end of the second main sleeve 30 is fixedly connected to the other end of the main keel 1 at the bottom of the beam and is arranged inclined toward the upper side of the main keel 1 at the bottom of the beam. The second L-shaped adjustment sleeve can be slidably set on the main keel 1 at the bottom of the beam through a second sliding support 31. The second L-shaped adjustment sleeve and the second main sleeve 30 are connected through a second adjustment tube assembly to adjust the distance between the second main sleeve 30 and the second L-shaped adjustment sleeve.
[0040] In this embodiment, the first adjustment bracket 2 and the second adjustment bracket 3 both adopt a right triangle structure. The right angles of the two right triangle structures are arranged close to each other and are fixed after the sizes are adjusted.
[0041] like Figures 1 to 3 As shown, the first adjustment assembly of this embodiment includes a first oblique adjustment tube 22, a first vertical adjustment tube 23, and a first transverse adjustment tube 24. The first L-shaped adjustment sleeve includes a first vertical tube 25 and a first transverse tube 26 connected vertically. A first sliding support 21 is provided on the side of the first transverse tube 26 facing away from the first vertical tube 25. The first oblique adjustment tube 22 and the other end of the first main sleeve 20 are mutually sleeved and connected by a first bolt 290. The first vertical adjustment tube 23 and the first vertical tube 25 are mutually sleeved and connected by a first bolt 290. The first transverse adjustment tube 24 and the first transverse tube 26 are mutually sleeved and connected by a first bolt 290. The free end of the first vertical adjustment tube 23 is connected to the free end of the first oblique adjustment tube 22 by a first bolt 290, and the free end of the first transverse adjustment tube 24 is connected to the first oblique adjustment tube 22 by a first bolt 290. The coordinated structural arrangement of the oblique adjustment tubes, vertical adjustment tubes, and transverse adjustment tubes facilitates adjustment of the horizontal spacing.
[0042] like Figures 1 to 3As shown, in this embodiment, the first main sleeve 20, first L-shaped adjustment sleeve, first diagonal adjustment tube 22, first vertical adjustment tube 23, and first transverse adjustment tube 24 are each provided with a plurality of equally spaced first adjustment holes 29. The provision of the first adjustment holes facilitates the locking and securing of the various pipe components after adjustment. After the first diagonal adjustment tube 22 and first main sleeve 20 are assembled, bolts can be screwed into the corresponding two first adjustment holes for locking and securing. Similarly, bolts can be inserted into the corresponding two first adjustment holes for locking and securing the other sleeve structures.
[0043] like Figure 1 and Figure 3 As shown, in this embodiment, the free end of the first vertical tube 25 is connected to a first reinforcing support tube 27, and the other end of the first main sleeve 20 is connected to a first reinforcing adjustment tube 28. The first reinforcing support tube 27 and the first reinforcing adjustment tube 28 are sleeved together and connected by a first bolt 290. The provision of the reinforcing support tube and the reinforcing adjustment tube further enhances the structural strength.
[0044] like Figure 1 and Figure 3 As shown, in this embodiment, the first reinforcement support tube 27 and the first reinforcement adjustment tube 28 are respectively provided with a plurality of first adjustment holes 29 arranged at equal intervals. After the first reinforcement support tube 27 and the first reinforcement adjustment tube 28 are assembled, bolts are inserted into the two corresponding first adjustment holes to lock and secure them.
[0045] like Figures 1 to 3 As shown, the second adjustment assembly of this embodiment includes a second oblique adjustment tube 32, a second vertical adjustment tube 33, and a second transverse adjustment tube 34. The second L-shaped adjustment sleeve includes a second vertical tube 35 and a second transverse tube 36 connected vertically. A second sliding support 31 is provided on the side of the second transverse tube 36 facing away from the second vertical tube 35. The second oblique adjustment tube 32 and the other end of the second main sleeve 30 are mutually sleeved and connected by a second bolt 390. The second vertical adjustment tube 33 and the second vertical tube 35 are mutually sleeved and connected by a second bolt 390. The second transverse adjustment tube 34 and the second transverse tube 36 are mutually sleeved and connected by a second bolt 390. The free end of the second vertical adjustment tube 33 is connected to the free end of the second oblique adjustment tube 32 by a second bolt 390, and the free end of the second transverse adjustment tube 34 is connected to the second oblique adjustment tube 32 by a second bolt 390. The coordinated structural arrangement of the oblique adjustment tubes, vertical adjustment tubes, and transverse adjustment tubes facilitates adjustment of the horizontal spacing.
[0046] like Figures 1 to 3As shown, in this embodiment, the second main sleeve 30, second L-shaped adjustment sleeve, second diagonal adjustment tube 32, second vertical adjustment tube 33, and second transverse adjustment tube 34 are each provided with a plurality of equally spaced second adjustment holes 39. The provision of the second adjustment holes facilitates the locking and securing of the various pipe components after adjustment. After the second diagonal adjustment tube 32 is assembled with the second main sleeve 30, bolts can be screwed into the corresponding two second adjustment holes for locking and securing. Similarly, bolts can be inserted into the corresponding two second adjustment holes for locking and securing the other sleeve structures.
[0047] like Figure 1 and Figure 3 As shown, in this embodiment, the free end of the second vertical tube 35 is connected to a second reinforcing support tube 37, and the other end of the second main sleeve 30 is connected to a second reinforcing adjustment tube 38. The second reinforcing support tube 37 and the second reinforcing adjustment tube 38 are nested together and connected by a second bolt 390. The provision of the reinforcing support tube and the reinforcing adjustment tube further enhances the structural strength.
[0048] like Figure 1 and Figure 3 As shown, the second reinforcing support tube 37 and the second reinforcing adjustment tube 38 of this embodiment are respectively provided with a plurality of second adjustment holes 39 arranged at equal intervals. After the second reinforcing support tube 37 and the second reinforcing adjustment tube 38 are assembled, bolts are inserted into the two corresponding second adjustment holes to lock and secure them.
[0049] like Figure 1 and Figure 3 As shown, in this embodiment, the main keel 1 at the bottom of the beam is further provided with an inverted U-shaped support connecting steel plate 4 on the side facing away from the first adjustment bracket 2 and the second adjustment bracket 3. The first sliding support 21 and the second sliding support 31 are both inverted U-shaped sliding support steel plates. The inverted U-shaped support connecting steel plate facilitates connection and support with the scaffolding crossbar, and the inverted U-shaped sliding support steel plate facilitates sliding support with the main keel at the bottom of the beam.
[0050] In this embodiment, the first main sleeve 20, first L-shaped adjustment sleeve, first diagonal adjustment tube 22, first vertical adjustment tube 23, first transverse adjustment tube 24, second main sleeve 30, second L-shaped adjustment sleeve, second diagonal adjustment tube 32, second vertical adjustment tube 33, second transverse adjustment tube 34, first reinforcing support tube 27, first reinforcing adjustment tube 28, second reinforcing support tube 37, and second reinforcing adjustment tube 38 are all made of square steel tubes. The first main sleeve and first L-shaped adjustment sleeve are larger than the square steel tubes of the other first adjustment brackets. The second main sleeve and second L-shaped adjustment sleeve are larger than the square steel tubes of the other second adjustment brackets.
[0051] During the beam formwork erection process, this embodiment is arranged perpendicular to the lower hanging beam 5. Two sizes of square steel tubes are drilled according to preset dimensions and then bolted together to form a retractable square steel tube sleeve. The right-angled square steel tube can be slid along the main keel at the bottom of the beam via an inverted U-shaped sliding support steel plate welded below, thereby adjusting the beam width. The retractable square steel tube sleeve can be adjusted by adjusting the length of each side to adjust the overall beam height. The beam cross-section can thus be adjusted by sliding the retractable square steel tube and the right-angled square steel tube. High-strength bolts secure the square steel tubes by engaging holes (adjustment holes) in the square steel tubes, ensuring the stability of the device.
[0052] The lower beam template spacing adjustment device of this embodiment is installed on a scaffolding, which includes interconnected scaffolding crossbars 6 and scaffolding vertical bars 7. In this embodiment, a wooden plank 51 is provided on the outer side of the lower beam template 52. The first and second adjustment brackets 2 and 3 are then respectively abutted against the wooden planks 51 on either side of the lower beam template 52. The main beam purlin 1 is then placed below the wooden planks 51 at the bottom of the lower beam template 52. The first and second sliding supports 21 and 31 are respectively slidably mounted on the main beam purlin 1. The inverted U-shaped support connecting steel plates 4 on the main beam purlin 1 are slidably engaged with the corresponding scaffolding crossbars 6. The main beam purlin 1 can be moved and adjusted on the scaffolding crossbars 6 via the inverted U-shaped support connecting steel plates 4. The first and second adjustment brackets 2 and 3 are then moved and adjusted on the main beam purlin 1 via the first and second sliding supports 21 and 31. The main beam purlin 1 and the corresponding scaffolding crossbars 6 are arranged vertically, thereby enabling lateral and longitudinal adjustment.
[0053] The use of an adjustable formwork support device can accommodate underhang beams of varying cross-sectional dimensions. During construction, there's no need to adjust the formwork support system pitch to suit different beam sizes. Furthermore, this device is not rigidly connected to the formwork support system, allowing multiple devices to be arranged according to beam span lengths, with the formwork and beam reinforcement installed uniformly before being hoisted and installed as a whole. Furthermore, this device eliminates the need for tension bolts to secure the formwork, reducing the use of sleeves. It offers significant advantages over traditional reinforcement methods in repairing defects, removing sleeves, and sealing bolt holes.
[0054] The adjustable spacing fixture for the underhang beam formwork of this embodiment improves structural safety during the installation of the underhang beam formwork and reduces the risk of structural failure due to concrete defects. Furthermore, this adjustable beam formwork fixture eliminates the need for longitudinal scaffolding pitch adjustment during use, providing greater stability for the bottom formwork support.
[0055] The utility model adopts an adjustable lower beam template fixing device for lower beams of different sizes, which is installed at the lower beam to fix the lower beam template. The use of this adjustable lower beam template fixing device has a significant effect in reducing the use of sleeves, repairing defects in traditional reinforcement methods, chiseling sleeves, and sealing bolt holes.
[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0058] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0059] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0061] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A fixing device for a lower hanging beam template with adjustable spacing, characterized in that: It includes a main keel at the bottom of the beam, a first adjustment bracket and a second adjustment bracket; The first adjustment bracket includes a first main sleeve and a first L-shaped adjustment sleeve, one end of the first main sleeve is fixedly connected to one end of the main keel at the bottom of the beam and is arranged obliquely toward the top of the main keel at the bottom of the beam, the first L-shaped adjustment sleeve is slidably arranged on the main keel at the bottom of the beam through a first sliding support, and the first L-shaped adjustment sleeve is connected to the first main sleeve through a first adjustment tube assembly to adjust the distance between the first main sleeve and the first L-shaped adjustment sleeve; The second adjustment bracket includes a second main sleeve and a second L-shaped adjustment sleeve, one end of the second main sleeve is fixedly connected to the other end of the main keel at the bottom of the beam and is arranged inclined toward the upper side of the main keel at the bottom of the beam, and the second L-shaped adjustment sleeve is slidably set on the main keel at the bottom of the beam through a second sliding support member, and the second L-shaped adjustment sleeve and the second main sleeve are connected through a second adjustment tube assembly to adjust the distance between the second main sleeve and the second L-shaped adjustment sleeve.
2. A spacing-adjustable lower hanging beam formwork fixing device according to claim 1, characterized in that: The first adjustment bracket includes a first oblique adjustment tube, a first vertical adjustment tube and a first transverse adjustment tube. The first L-shaped adjustment sleeve includes a first vertical tube and a first transverse tube vertically connected. A first sliding support is provided on a side of the first transverse tube facing away from the first vertical tube. The first oblique adjustment tube and the other end of the first main sleeve are sleeved together and connected by a first bolt, the first vertical adjustment tube and the first vertical tube are sleeved together and connected by a first bolt, and the first transverse adjustment tube and the first transverse tube are sleeved together and connected by a first bolt; the free end of the first vertical adjustment tube and the free end of the first oblique adjustment tube are connected by a first bolt, and the free end of the first transverse adjustment tube and the first oblique adjustment tube are connected by a first bolt.
3. A spacing-adjustable lower hanging beam formwork fixing device according to claim 2, characterized in that: The first main sleeve, the first L-shaped adjustment sleeve, the first oblique adjustment tube, the first vertical adjustment tube and the first transverse adjustment tube are respectively provided with a plurality of first adjustment holes arranged at equal intervals.
4. The spacing-adjustable lower hanging beam formwork fixing device according to claim 2, characterized in that: The free end of the first vertical tube is connected to a first reinforcing support tube, and the other end of the first main sleeve is connected to a first reinforcing adjustment tube. The first reinforcing support tube and the first reinforcing adjustment tube are sleeved on each other and connected by a first bolt.
5. The spacing-adjustable lower hanging beam formwork fixing device according to claim 4, characterized in that: The first reinforcement support tube and the first reinforcement adjustment tube are respectively provided with a plurality of first adjustment holes arranged at equal intervals.
6. A spacing-adjustable lower hanging beam formwork fixing device according to any one of claims 1 to 5, characterized in that: The second adjustment bracket includes a second oblique adjustment tube, a second vertical adjustment tube and a second transverse adjustment tube, the second L-shaped adjustment sleeve includes a second vertical tube and a second transverse tube vertically connected, and a second sliding support is provided on a side of the second transverse tube facing away from the second vertical tube; The second oblique adjustment tube and the other end of the second main sleeve are sleeved together and connected by a second bolt, the second vertical adjustment tube and the second vertical tube are sleeved together and connected by a second bolt, and the second transverse adjustment tube and the second transverse tube are sleeved together and connected by a second bolt; the free end of the second vertical adjustment tube and the free end of the second oblique adjustment tube are connected by a second bolt, and the free end of the second transverse adjustment tube and the second oblique adjustment tube are connected by a second bolt.
7. A spacing-adjustable lower hanging beam formwork fixing device according to claim 6, characterized in that: The second main sleeve, the second L-shaped adjustment sleeve, the second oblique adjustment tube, the second vertical adjustment tube and the second transverse adjustment tube are respectively provided with a plurality of second adjustment holes arranged at equal intervals.
8. The spacing-adjustable lower hanging beam formwork fixing device according to claim 6, characterized in that: The free end of the second vertical tube is connected to a second reinforcing support tube, and the other end of the second main sleeve is connected to a second reinforcing adjustment tube. The second reinforcing support tube and the second reinforcing adjustment tube are sleeved on each other and connected by a second bolt.
9. The spacing-adjustable lower hanging beam formwork fixing device according to claim 8, characterized in that: The second reinforcement support tube and the second reinforcement adjustment tube are respectively provided with a plurality of second adjustment holes arranged at equal intervals.
10. The spacing-adjustable lower hanging beam formwork fixing device according to claim 1, characterized in that: An inverted U-shaped support connecting steel plate is further provided on the side of the main keel at the bottom of the beam away from the first adjustment bracket and the second adjustment bracket; the first sliding support member and the second sliding support member are both inverted U-shaped sliding support steel plates.