Lightweight sawhorse with concealed activity hook hinge

Abstract

The utility model relates to the field of woodworking saw bench, concretely relates to a light saw horse capable of hiding movable hook hinged parts, including crossbeam frame, four support foot poles supported in the lower end of crossbeam frame, the both ends of crossbeam frame are all installed with end part encapsulation piece, and movable hook is rotatably hinged through hinged structure of end part encapsulation piece, and the hinged structure is located in the inner recess of end part encapsulation piece, and the inner recess of both sides is all set up towards the middle part of crossbeam frame, wherein, movable hook can rotate to the upper end of crossbeam frame and is attached, realizes its folding storage, in the utility model, the hinged structure of movable hook is located in the inner recess of end part encapsulation piece, and it only has the outside end to open outward, therefore can greatly avoid the wood dust produced when woodworking operation to splash into the hinged structure, thereby guaranteeing that movable hook can rotate stably for a long time.

Description

Technical Field

[0001] This utility model relates to the field of woodworking saw stools, specifically to a lightweight saw stool with a concealable hinged hook. Background Technology

[0002] The saw not only serves as a support for sawing wood, but can also be assembled into a base for a workbench, supporting various tools and materials. Furthermore, the size and shape of the workbench can be controlled by adjusting the spacing between the saws to adapt to different work needs. To this end, existing technologies have expanded the functionality of the saw by installing hooks on both sides. Multiple hooks from multiple saws can be combined to place wooden blocks, forming a support surface for the workbench. To prevent the unfolded hooks from interfering with the neat installation of the saw or its use in other situations, some products feature foldable or detachable hooks.

[0003] For example, the existing patent with publication number CN214447054U discloses a lightweight saw with movable hangers. It adds movable hangers to both ends of the crossbeam profile, and wood rods are overlapped on the parallel movable hangers to form a horizontal support frame. A large board is placed on the support frame to form a work surface. When the movable hangers are not needed, the movable hangers can be rotated 270 degrees upward relative to the crossbeam, so that the lower half of the hangers passes through the through hole and is stored in the crossbeam.

[0004] However, in this design, the hinge of the movable bracket is exposed to the outside, which makes it easy for flying wood chips to fall into the gap of the hinge when multiple saws are used to form a workbench for woodworking. The wood chips accumulate over time and eventually affect the rotation of the movable bracket. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a lightweight saw that can hide the hinge part of the movable hook. By setting an inwardly recessed groove in the end encapsulation part and placing the hinge part of the movable hook in the groove, the hinge part is effectively hidden. This can greatly block the wood chips generated during woodworking and reduce the wood chips falling into the hinge part, thus ensuring the long-term stable rotation of the movable hook.

[0006] To solve the above problems, the present invention adopts the following solution: A lightweight saw with a concealable hinged part includes a crossbeam frame and four support legs supported at the lower end of the crossbeam frame. Both ends of the crossbeam frame are equipped with end caps. The end caps are rotatably hinged to the movable hooks via a hinge structure. The hinge structure is located in the inner groove of the end cap. The inner grooves on both sides are opened towards the middle of the crossbeam frame so that only the outer side is open outward. The movable hook can be rotated to fit against the upper end of the crossbeam frame, so as to achieve folding and storage.

[0007] In this design, the hinge structure is placed in the inner groove, which hides the hinge part of the movable hook and reduces the amount of wood chips and other debris flying into the hinge structure, thus preventing it from affecting rotation after long-term use.

[0008] Preferably, the movable hook is configured as a three-section bent strip plate, namely the first section, the second section, and the third section, wherein the first section is away from the hinge structure, the second section is perpendicularly connected to the first section and the third section, and the third section is connected to the hinge structure.

[0009] The three-section movable hook works in conjunction with the end sealing component, so that when it is unfolded, it can form a roughly square groove that is closed on three sides. Then, the wooden blocks are overlapped in the square grooves of each saw to realize the splicing and combination of multiple saws.

[0010] Preferably, when the movable hook is unfolded, the second section abuts against the bottom wall of the inner groove, and when the movable hook is rotated upwards to retract, the third section abuts against the upper inner wall of the inner groove. This provides a limiting indication for both the upward and downward rotation of the movable hook, forming a limiting fit with the inner groove to ensure stable rotation during unfolding or retraction.

[0011] Preferably, the hinge structure adopts an integral hinge, including a hinge sleeve formed by bending the end of the third section, a hinge shaft coaxially inserted into the hinge sleeve, and the two ends of the hinge shaft connected to the two inner walls of the inner groove.

[0012] The integrated hinge structure in the above configuration avoids connecting the movable hook to a separate hinge structure through welding or other methods. Therefore, there are no additional connecting parts, which improves the strength of the movable hook and ensures stable support for the wooden block when the movable hook is deployed.

[0013] Preferably, the upper end of the crossbeam frame is provided with a storage groove that extends through both ends of its length direction, and the end package is provided with a recessed part corresponding to the storage groove. When the movable hook is rotated up for storage, the first section is embedded in the storage groove.

[0014] The above design improves aesthetics and prevents the movable hook from being easily damaged during transport due to its protruding placement.

[0015] Preferably, the end-capsule includes an end plate and two side plates, wherein the shape of the end plate matches the trapezoidal cross section of the crossbeam frame, and the two side plates are fitted onto the two side walls of the crossbeam frame and fixedly connected to the two side walls of the crossbeam frame by bolts.

[0016] Preferably, the bottom of the two side walls of the crossbeam frame are bent outward to form a limiting flange, and the lower ends of the two side plates of the end package abut against the limiting flange.

[0017] The limiting flange in the above setting can form a limiting function when the end package is installed, ensuring that the end package is installed conveniently and quickly.

[0018] Preferably, each of the support legs is provided with a locking component for folding and stably unfolding. The locking component includes a folding rotating shaft for rotating the support leg, a separable elastic pin and unfolding pin hole and folding pin hole, and a control handle for controlling the insertion or disengagement of the elastic pin. When the support leg is stably unfolded, the elastic pin is inserted into the unfolding pin hole, and when the support leg is stably folded, the elastic pin is inserted into the folding pin hole.

[0019] Preferably, the folding rotating shaft passes sequentially through the support leg, the side wall of the crossbeam frame, and the side plate of the end encapsulation component; the elastic pin achieves elastic extension and retraction through a coaxially fitted spring, and both the unfolding pin hole and the folding pin hole pass through the side wall of the crossbeam frame and the side plate of the end encapsulation component; one end of the control handle is connected to the elastic pin, and the other end is suspended in the air, with protruding fulcrums on both sides of the middle section between the two, which are used to make rotatable movement with the support leg.

[0020] The above configuration allows the control handle to act as a lever. By pressing one end, which is suspended in the air, the other end can be rotated outward, thereby causing the elastic pin to disengage from the unfolding pin hole. Then, rotate the folding support rod to the lower end of the crossbeam. At this point, release the control handle, and the elastic pin will elastically insert into the folding pin hole, thus locking the support rod and the crossbeam. If unfolding is required, simply rotate in the reverse direction.

[0021] Preferably, a deformable handle is installed in the middle of the storage groove at the upper end of the crossbeam frame. The two ends of the deformable handle are respectively provided with waist-shaped holes. A positioning shaft is vertically inserted into each waist-shaped hole. The lower end of the positioning shaft is fixedly connected to the bottom wall of the storage groove, and the deformable handle is limited to the upper part of the positioning shaft and the bottom wall of the storage groove.

[0022] Therefore, when the deformable handle is not in use, it is in a flat state, and the positioning shaft is located at the inner end of the oblong hole; when it is needed, the deformable handle can be lifted, causing the positioning shaft to slide relative to the oblong hole until the positioning shaft is located at the outer end of the oblong hole. At this time, the deformable handle has an upward convex arc shape, making it easy to lift. The beneficial effects of this utility model are as follows: This utility model features a rotatable hinged movable hook, which can be unfolded for assembling multiple saw blocks, or folded for storage to facilitate the use of a single saw block or for easy installation and transportation.

[0023] In this invention, whether the movable hook is unfolded or folded for storage, the rotating hinge part of the movable hook is located in the inner groove of the end encapsulation part, with only the outer end open to the outside. Therefore, it can greatly prevent wood chips generated during woodworking from splashing into the hinge part, thereby ensuring that the movable hook can rotate stably for a long time. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model when both the support legs and the movable hook are extended; Figure 2 This is a schematic diagram of the structure of the present invention when the supporting legs and movable hooks are folded and stored. Figure 3 Figure 1 A magnified view of a section at point I; Figure 4 This is a schematic diagram of the structure of the end packaging component of this utility model when it is engaged with the folding movable hook; Figure 5 This is a half-sectional view of the end-capsule of this utility model when it is engaged with the unfolded movable hook; Figure 6 This is a half-sectional view of the end packaging component of this utility model when it is engaged with the folding movable hook; Figure 7 This is a partial side view of the present invention; Figure 8 This is a partial structural diagram of the support leg of this utility model when folded and stored. Figure 9 for Figure 2 A magnified view of section II in the middle.

[0025] Figure label: 11. Crossbeam frame, 12. Supporting leg, 13. Receiving groove, 111. Storage groove, 112. Limiting fold, 20. End sealing component, 21. Inner groove, 22. Lower recess, 23. End plate, 24. Side plate, 30. Movable hook, 31. First section, 32. Second section, 33. Third section, 40. Hinge structure, 41. Hinge sleeve, 42. Hinge shaft, 50. Locking assembly, 51. Folding rotation shaft, 52. Elastic pin, 53. Unfolding pin hole, 54. Folding pin hole, 55. Control handle, 55. Protruding fulcrum, 551. Deformable handle strap, 60. Waist-shaped hole, 61. Positioning shaft, 62. Reinforcing rib, 70. Detailed Implementation

[0026] Example 1: refer to Figures 1-3This embodiment provides a lightweight saw with a concealable hinged hook, including a crossbeam frame 11 and four support legs 12 supported at the lower end of the crossbeam frame 11. The crossbeam frame 11 is symmetrically arranged and is formed by repeatedly bending a plate-shaped lightweight material, such as an aluminum profile, and has a receiving groove 13 that is open at the lower end and closed at the other three ends (e.g., Figure 8 As shown), the cross-sections of the left and right ends of the crossbeam frame 11 are in the shape of an isosceles trapezoid, and both are equipped with end encapsulation parts 20. The end encapsulation parts 20 are rotatably hinged to movable hooks 30 through a hinge structure 40. The hinge structure 40 is located in the inner groove 21 of the end encapsulation parts 20. The inner grooves 21 on both sides are opened towards the middle of the crossbeam frame 11 so that only the outer side is open to the outside. The movable hooks 30 can be flexibly rotated to fit against the upper end of the crossbeam frame 11 to achieve folding and storage.

[0027] In this embodiment, the hinge structure 40 is set in the inner groove 21, which hides the hinge part of the movable hook 30 and reduces the splashing of wood chips and other debris into the hinge structure 40, thus avoiding affecting the rotation after long-term use.

[0028] The movable hook 30 is specially designed so that when unfolded, it can be used in conjunction with other movable hooks 30 of the saw and overlap with wooden blocks to form a support surface for the workbench. When not in use, it can be folded and stored, fitting snugly against the upper end of the support beam, facilitating the independent use of the saw or convenient installation and transportation. The specific structure of the movable hook 30 is as follows: refer to Figure 5 , Figure 6 The movable hook 30 is formed by bending a piece of plate material twice, and has three strip plates, namely the first section 31, the second section 32, and the third section 33. The first section 31 is away from the hinge structure 40, the second section 32 is perpendicularly connected to the first section 31 and the third section 33, and the third section 33 is connected to the hinge structure 40.

[0029] The aforementioned three-section movable hook 30 cooperates with the end encapsulation part 20 so that when it is unfolded, it can form a roughly square groove. Then, the wooden blocks are overlapped in the square grooves of each saw to realize the splicing combination of multiple saws. Of course, there are no special requirements for the cross-sectional shape of the wooden blocks; they can be square, round, or other shapes.

[0030] Further, refer to Figure 5 When the movable hook 30 is unfolded, the second segment 32 abuts against the bottom wall of the inner groove 21, for reference. Figure 6 When the movable hook 30 is rotated upwards to be stored, the third segment 33 abuts against the inner wall of the inner groove 21, thus providing a limit indication for both the upward rotation and downward rotation of the movable hook 30. This forms a limit engagement with the inner groove 21, ensuring stable rotation operation of the movable hook 30 during unfolding or storage.

[0031] refer to Figure 5 , Figure 6 The hinge structure 40 adopts an integral hinge, including a hinge sleeve 41 formed by bending the end of the third segment 33, and a hinge shaft 42 coaxially inserted into the hinge sleeve 41. The two ends of the hinge shaft 42 are connected to the two inner walls of the inner groove 21. Therefore, the movable hook 30 can rotate around the hinge shaft 42 via the integrally formed hinge sleeve 41, thereby realizing the rotational unfolding or rotational storage of the movable hook 30.

[0032] The integrated hinge structure 40 in this embodiment avoids the need for connection with a separate hinge structure 40 through welding or other means. Therefore, there are no additional connection parts, which improves the strength of the movable hook 30 and ensures stable support for the wooden block when the movable hook 30 is unfolded.

[0033] Further, refer to Figures 2-4 The upper end of the crossbeam frame 11 is provided with a storage groove 111 that runs through both ends of its length direction. The end sealing member 20 is provided with a recess 22 corresponding to the storage groove 111. When the movable hook 30 is rotated up for storage, the first section 31 is embedded in the storage groove 111. This not only improves the aesthetics, but also avoids the movable hook 30 from being easily damaged by collision during transportation due to its protruding placement, or affecting the independent use of the saw.

[0034] To ensure convenient and stable installation of the end package 20, its structure is specifically designed, as follows: refer to Figure 3 , Figure 4 The end-capsulation component 20 includes an end plate 23 and two side plates 24. The end plate 23 is shaped to fit the trapezoidal cross section of the crossbeam frame 11. The two side plates 24 are fitted and mounted on the two side walls of the crossbeam frame 11, and the two side plates 24 are fixedly connected to the two side walls of the crossbeam frame 11 by bolts.

[0035] Further, refer to Figure 3 The bottom of the two side walls of the crossbeam frame 11 bends outward to form a limiting flange 112, and the lower ends of the two side plates 24 of the end package 20 abut against the limiting flange 112.

[0036] The limiting fold 112 is designed to limit the installation of the end package 20, thereby ensuring that the installation of the end package 20 is convenient and quick.

[0037] refer to Figure 7 , Figure 8 In this embodiment, each support leg 12 is also provided with a locking component 50 to realize the folding and storage and stable unfolding of the support leg 12.

[0038] Specifically, combined with Figure 3 For reference, the locking assembly 50 includes a folding rotating shaft 51 for rotating the support leg 12, a separable and pluggable elastic pin 52 with an unfolding pin hole 53 and a folding pin hole 54, and a control handle 55 for controlling the insertion or disengagement of the elastic pin 52. When the support leg 12 is stably unfolded, the elastic pin 52 is plugged into the unfolding pin hole 53. When the support leg 12 is stably folded, the elastic pin 52 is plugged into the folding pin hole 54.

[0039] The folding rotating shaft 51 passes sequentially through the support leg 12, the side wall of the crossbeam frame 11, and the side plate 24 of the end encapsulation component 20. The elastic pin 52 achieves elastic extension and retraction through a coaxially fitted spring. The unfolding pin hole 53 and the folding pin hole 54 both pass through the side wall of the crossbeam frame 11 and the side plate 24 of the end encapsulation component 20. One end of the control handle 55 is connected to the elastic pin 52, and the other end is suspended. The two sides of the middle part between the two are protruding to form protruding fulcrums 551. The protruding fulcrums 551 abut against the support leg 12 to form a rotation fulcrum or are hinged to the support leg 12 by means of the two protruding fulcrums 551.

[0040] The above configuration allows the control handle 55 to act as a lever. By pressing one end which is suspended in the air, the other end can be rotated outward, thereby causing the elastic pin 52 to disengage from the unfolding pin hole 53. Then, the folding support rod 12 is rotated and stored in the receiving groove 13 of the crossbeam frame 11. At this time, the control handle 55 is released, and the elastic pin 52 is elastically inserted into the folding pin hole 54, thus achieving a stable lock between the support rod 12 and the crossbeam frame 11. If it needs to be unfolded, the same operation is performed in reverse to make the elastic pin 52 elastically insert into the unfolding pin hole 53.

[0041] To make this lightweight saw horse easy to carry after folding and storing. (Reference) Figure 2 , Figure 9 A deformable handle strap 60 is also installed in the storage groove 111 at the upper end of the crossbeam frame 11. The deformable handle strap 60 is symmetrically arranged relative to the crossbeam frame 11.

[0042] Furthermore, in order to ensure that the deformable handle 60 can be in an upwardly convex arc shape when in use for easy lifting, and can be stably fitted into the storage slot 111 when not in use to avoid affecting the normal use of this saw.

[0043] refer to Figure 9The deformable handle strap 60 can be made of easily deformable and elastic rubber material. It has oblong holes 61 at both ends, and a positioning shaft 62 is vertically inserted into each oblong hole 61. The lower end of the positioning shaft 62 is fixedly connected to the bottom wall of the storage groove 111, and the deformable handle strap 60 is limited to the area between the upper part of the positioning shaft 62 and the bottom wall of the storage groove 111. When the deformable handle strap 60 is not in use, it is in a straight state, and the positioning shaft 62 is located at the inner end of the oblong hole 61. When needed, the deformable handle strap 60 can be lifted, causing the positioning shaft 62 to slide relative to the oblong hole 61 until the positioning shaft 62 is located at the outer end of the oblong hole 61. At this time, the deformable handle strap 60 has an upwardly convex arc shape, making it easy to lift.

[0044] To improve the supporting strength of this saw and ensure its stability during use. (Reference) Figure 1 , Figure 2 The outer side wall of the crossbeam frame 11 is also provided with multiple reinforcing ribs 70 protruding from it.

[0045] Therefore, the specific working process and principle of this embodiment can be summarized as follows: When the movable hook 30 is not needed, it is rotated upwards to the first section 31 and stored in the storage slot 111 of the crossbeam frame 11. When the movable hook 30 is needed to be used to assemble a workbench with a larger working area, multiple saws are placed side by side as needed, and their movable hooks 30 are rotated downwards to unfold. Wooden blocks are then placed in the square slots formed by the movable hooks 30 to form a combination of multiple saws, creating a larger support surface. A tabletop is then placed on the support surface to form a workbench. Regardless of whether the movable hook 30 is unfolded or retracted, the rotating hinge part of the movable hook 30 is located in the inner groove 21, with only the outer end open to the outside. This greatly prevents wood chips generated during woodworking from splashing into the hinge structure 40, thus ensuring the long-term rotational stability of the movable hook 30.

Claims

1. A lightweight saw with a concealable hinged hook, comprising a crossbeam frame (11) and four support legs (12) supported at the lower end of the crossbeam frame (11), characterized in that, Both ends of the crossbeam frame (11) are equipped with end caps (20). The end caps (20) are rotatably hinged to a movable hook (30) via a hinge structure (40). The hinge structure (40) is located in the inner groove (21) of the end caps (20). The inner grooves (21) on both sides are opened towards the middle of the crossbeam frame (11). The movable hook (30) can be rotated to fit against the upper end of the crossbeam frame (11) to achieve folding and storage.

2. The lightweight saw horse with a concealable movable hook hinge as described in claim 1, characterized in that, The movable hook (30) is configured as a three-section bent strip plate, namely the first section (31), the second section (32), and the third section (33). The first section (31) is away from the hinge structure (40), the second section (32) is vertically connected to the first section (31) and the third section (33), and the third section (33) is connected to the hinge structure (40).

3. The lightweight saw horse with a concealable movable hook hinge as described in claim 2, characterized in that, When the movable hook (30) is unfolded, the second segment (32) abuts against the bottom wall of the inner groove (21), and when the movable hook (30) is rotated up and stored, the third segment (33) abuts against the inner wall of the inner groove (21).

4. The lightweight saw horse with a concealable movable hook hinge as described in claim 2, characterized in that, The hinge structure (40) adopts an integral hinge, including a hinge sleeve (41) formed by bending the end of the third segment (33) and a hinge shaft (42) coaxially inserted into the hinge sleeve (41). The two ends of the hinge shaft (42) are connected to the two inner walls of the inner groove (21).

5. The lightweight saw horse with a concealable movable hook hinge as described in claim 2, characterized in that, The upper end of the crossbeam frame (11) is provided with a storage groove (111) that runs through both ends of its length direction. The end package (20) is provided with a recess (22) corresponding to the storage groove (111). When the movable hook (30) is rotated up for storage, the first section (31) is embedded in the storage groove (111).

6. The lightweight saw horse with a concealable movable hook hinge as described in claim 1, characterized in that, The end-capsule (20) includes an end plate (23) and two side plates (24). The end plate (23) is shaped to fit the trapezoidal cross section of the crossbeam frame (11). The two side plates (24) are fitted onto the two side walls of the crossbeam frame (11) and are fixedly connected to the two side walls of the crossbeam frame (11) by bolts.

7. The lightweight saw horse with a concealable movable hook hinge as described in claim 6, characterized in that, The bottom of the two side walls of the crossbeam frame (11) bends outward to form a limiting flange (112), and the lower ends of the two side plates (24) of the end package (20) abut against the limiting flange (112).

8. The lightweight saw horse with a concealable movable hook hinge as described in claim 1, characterized in that, Each of the aforementioned support legs (12) is provided with a locking component (50) for folding and stably unfolding. The locking component (50) includes a folding rotating shaft (51) for rotating the support leg (12), a separable elastic pin (52) and unfolding pin hole (53) and folding pin hole (54), and a control handle (55) for controlling the insertion or disengagement of the elastic pin (52). When the support leg (12) is stably unfolded, the elastic pin (52) is inserted into the unfolding pin hole (53). When the support leg (12) is stably folded, the elastic pin (52) is inserted into the folding pin hole (54).

9. The lightweight saw horse with a concealable movable hook hinge as described in claim 8, characterized in that, The folding rotating shaft (51) passes through the support rod (12), the side wall of the crossbeam frame (11), and the side plate (24) of the end package (20) in sequence; the elastic pin (52) achieves elastic extension and retraction through the spring of the coaxial set, and the unfolding pin hole (53) and the folding pin hole (54) both pass through the side wall of the crossbeam frame (11) and the side plate (24) of the end package (20); one end of the control handle (55) is connected to the elastic pin (52), and the other end is suspended. The two sides of the middle part between the two are protruding and form protruding fulcrums (551), which are used to make rotatable movement with the support rod (12).

10. The lightweight saw horse with a concealable movable hook hinge as described in claim 5, characterized in that, A deformable handle strap (60) is also installed in the storage groove (111) at the upper end of the crossbeam frame (11). The two ends of the deformable handle strap (60) are respectively provided with waist-shaped holes (61). A positioning shaft (62) is vertically inserted in each waist-shaped hole (61). The deformable handle strap (60) is limited to the upper part of the positioning shaft (62) and the bottom wall of the storage groove (111).

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