Saw horse support

Abstract

A containing groove is formed in the bottom of a support body, supporting leg assemblies are rotationally connected to the two ends of the support body respectively, the containing groove is used for folding and storing the supporting leg assemblies, each supporting leg assembly comprises a connecting leg, a first supporting leg and a second supporting leg, and first rotating shafts are arranged at the two ends of the support body respectively. In the height direction of the support body, the first rotating shaft at one end of the support body is located below the first rotating shaft at the other end of the support body, and the other end of the connecting leg is connected with a second rotating shaft. The first supporting leg and the second supporting leg are connected to the second rotating shaft and can rotate in the length direction of the second rotating shaft, the second rotating shaft is further sleeved with a torsional spring, one end of the torsional spring is connected with the first supporting leg, and the other end of the torsional spring is connected with the second supporting leg. The supporting leg assembly has the advantages that the supporting leg assembly is automatically unfolded under the action of gravity and the elastic force of the torsional spring, operation is easy, and the unfolding speed is high.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting auxiliary tools, and particularly relates to a saw horse bracket. Background Art

[0002] A saw horse bracket is a commonly used auxiliary tool during the cutting process, especially during the wood cutting process. The existing saw horse brackets usually include a bracket body, and four legs are provided below the bracket body to support the bracket body. Moreover, in order to facilitate carrying or storage, the four legs are usually hinged to the bracket body so as to fold the legs. Although this structure is convenient for storage and carrying, each time it is used, the four legs need to be manually unfolded, and the unfolding process is slow and the operation is cumbersome. Therefore, there is an urgent need for a new type of saw horse bracket that is easy to unfold. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a saw horse bracket. Under the action of gravity and the elastic force of a torsion spring, the leg assembly automatically unfolds, with simple operation and fast unfolding speed.

[0004] The purpose of the utility model is achieved by the following technical measures: A saw horse bracket includes a bracket body. A receiving groove is provided at the bottom of the bracket body. Leg assemblies are respectively rotatably connected to both ends of the bracket body. The receiving groove is used for folding and storing the leg assemblies. The leg assembly includes a connecting leg, a first leg, and a second leg. First rotating shafts are respectively provided at both ends of the bracket body. The length direction of the first rotating shaft is perpendicular to the length direction of the bracket body. The first rotating shaft is connected to one end of the connecting leg and the connecting leg can rotate around the length direction of the first rotating shaft. In the height direction of the bracket body, the first rotating shaft at one end of the bracket body is located below the first rotating shaft at the other end. The other end of the connecting leg is connected with a second rotating shaft. The length direction of the second rotating shaft is parallel to the length direction of the bracket body. The first leg and the second leg are connected to the second rotating shaft and can rotate around the length direction of the second rotating shaft. A torsion spring is also sleeved on the second rotating shaft. One end of the torsion spring is connected to the first leg, and the other end of the torsion spring is connected to the second leg.

[0005] Further, a limit pin is also provided on the connecting leg connected to the first rotating shaft located below. The limit pin includes a pin head, a pin rod, and a pin seat. One end of the pin rod is connected to the pin head. The other end of the pin rod passes through the connecting leg and is connected to the pin seat. A limit spring is also provided between the pin head and the connecting leg. The limit spring is sleeved on the pin rod. A limit hole is also provided on the bracket body on the side opposite to the pin head. The limit hole is used in cooperation with the pin head.

[0006] Further, limit members are respectively provided on the outer sides of the first leg and the second leg. The limit members are rotatably connected to the second rotating shaft. When the first leg and the second leg are unfolded, the limit members are in contact with the bracket body.

[0007] Further, reinforcing members are respectively provided at both ends of the bracket body. The reinforcing members are attached to the inner wall of the receiving groove, and the bottom surface of the reinforcing members is flush with or slightly lower than the bottom surface of the receiving groove. When the first leg and the second leg are unfolded, the limiting member contacts the reinforcing member.

[0008] Further, the length of the reinforcing member matches the rotation radius when the limiting member rotates around the first rotating shaft.

[0009] Further, the first leg and the second leg have the same structure, which is a square tube structure with an opening on one side. The open ends of the first leg and the second leg are arranged opposite to each other. When the first leg and the second leg rotate to the folded state, the sides on both sides of the open ends of the first leg and the second leg are stacked in an alternating manner.

[0010] Further, the first leg includes an upper leg and a lower leg. One end of the upper leg is connected to the second rotating shaft, and the other end of the upper leg is slidably sleeved with the lower leg. A plurality of positioning holes are also provided on the upper leg, and a positioning mechanism for cooperating with the positioning holes is provided on the lower leg.

[0011] Further, a folding rod is also hinged between two relatively arranged upper legs. The folding rod includes a first rod and a second rod which are hingedly connected.

[0012] Further, support assemblies are respectively provided at both ends of the bracket body. The support assemblies are provided with strip-shaped grooves, and sliding shafts for cooperating with the strip-shaped grooves are provided on the bracket body. A turning clamp for clamping the support assemblies is provided on the sliding shafts.

[0013] Further, a handle is also provided at the top of the bracket body.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: When it is necessary to unfold the sawhorse bracket of the present utility model, only need to turn the opening of the receiving groove downward, and the leg assembly rotates and unfolds under the action of gravity. The first leg and the second leg automatically unfold under the action of the torsion spring elasticity. Through the setting of the reinforcing member, the structural strength of the connection between the first leg and the second leg and the bracket body can be improved, thereby improving the load-bearing capacity of the bracket body. Moreover, setting the reinforcing members at both ends of the bracket body can not only improve the load-bearing capacity, but also avoid excessive increase in the weight of the bracket body, which is convenient for carrying.

[0015] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model in the unfolded state.

[0017] Figure 2 It is a schematic structural diagram of the folding state of the present utility model.

[0018] Figure 3 It is a schematic internal structure diagram of the folding state of the present utility model.

[0019] Figure 4 It is a schematic internal structure diagram of one end of the bracket body.

[0020] Figure 5 It is Figure 4 An enlarged view of part A in

[0021] Figure 6 It is a schematic internal structure diagram of the other end of the bracket body.

[0022] Figure 7 It is Figure 6 An enlarged view of part B in

[0023] Figure 8 It is a schematic structural diagram of the leg assembly Figure 1 .

[0024] Figure 9 It is Figure 8 An enlarged view of part C in

[0025] Figure 10 It is a schematic structural diagram of the torsion spring.

[0026] Figure 11 It is a schematic structural diagram of the reinforcing member.

[0027] Wherein, 1. Bracket body, 2. Support assembly, 3. First rotating shaft, 4. Limit pin, 5. Upper leg, 6. Lower leg, 7. Connecting leg, 8. Second rotating shaft, 9. Limit spring, 10. Pin head, 11. Pin rod, 12. Pin seat, 13. Reinforcing member, 14. Sliding shaft, 15. Flipping clamp, 16. Limiting member, 17. Torsion spring, 18. First rod, 19. Second rod, 20. Handle. Specific embodiments

[0028] Such as Figures 1 to 11As shown in the figure, a sawhorse bracket includes a bracket body 1. Preferably, the bracket body 1 is in a cuboid structure. A receiving groove is provided at the bottom of the bracket body 1. Preferably, the length of the receiving groove matches the length of the bracket body 1. Leg assemblies are rotatably connected to both ends of the bracket body 1 respectively. The receiving groove is used for folding and storing the leg assemblies. The leg assembly includes a connecting leg 7, a first leg and a second leg. First rotating shafts 3 are provided at both ends of the bracket body 1 respectively. Preferably, the first rotating shafts 3 are arranged in the receiving groove. The length direction of the first rotating shafts 3 is perpendicular to the length direction of the bracket body 1. The first rotating shafts 3 are connected to one ends of the connecting legs 7 and the connecting legs 7 can rotate around the length direction of the first rotating shafts 3. In the height direction of the bracket body 1, the first rotating shaft 3 at one end of the bracket body 1 is located below the first rotating shaft 3 at the other end, so that when the leg assemblies are folded, the two leg assemblies can be stacked on top of each other in the receiving groove. The other end of the connecting leg 7 is connected to a second rotating shaft 8. The length direction of the second rotating shaft 8 is parallel to the length direction of the bracket body 1. The first leg and the second leg are connected to the second rotating shaft 8 and can rotate around the length direction of the second rotating shaft 8. A torsion spring 17 is also sleeved on the second rotating shaft 8. One end of the torsion spring 17 is connected to the first leg, and the other end of the torsion spring 17 is connected to the second leg. Specifically, by rotating the first leg and the second leg, the combination and expansion of the first leg and the second leg can be realized. By rotating the connecting leg 7, the expansion and folding of the leg assembly can be realized. When the sawhorse bracket needs to be folded, first rotate the first leg and the second leg to combine the first leg and the second leg. At this time, the first leg and the second leg clamp the torsion spring 17, and then rotate the connecting leg 7 to fold and store the leg assembly into the receiving groove. When the sawhorse bracket needs to be expanded, just turn the receiving groove with the opening facing downwards. Under the action of gravity, the leg assembly rotates and expands. The first leg and the second leg automatically expand under the action of the elastic force of the torsion spring 17.

[0029] A limit pin 4 is also provided on the connecting leg 7 connected to the first rotating shaft 3 located below, and the limit pin 4 includes a pin head 10, a pin rod 11 and a pin seat 12. One end of the pin rod 11 is connected to the pin head 10, and the other end of the pin rod 11 passes through the connecting leg 7 and is connected to the pin seat 12. A limit spring 9 is also provided between the pin head 10 and the connecting leg 7. The limit spring 9 is sleeved on the pin rod 11. The pin head 10 can compress the limit spring 9 to drive the pin rod 11 to move along its length direction. The bracket body 1 is also provided with a limit spring on the side opposite to the pin head 10. The limiting hole is used in conjunction with the pin head 10. Specifically, when the leg assembly is folded and accommodated in the accommodating groove, the pin head 10 is inserted into the limiting hole, and the connecting leg 7 cannot rotate around the first rotating shaft 3. At this time, the leg assembly is locked, and because the limiting pin 4 is arranged on the connecting leg 7 connected to the first rotating shaft 3 located below, the leg assembly below in the accommodating groove also plays a limiting role on the leg assembly above it. The present disclosure only needs to set a limiting pin 4 to achieve the locking of the two groups of leg assemblies, that is, to achieve the locking of the saw horse bracket after folding. When the saw horse bracket needs to be unfolded, it is only necessary to press the pin head 10 to disengage the pin head 10 from the limiting hole, and the two groups of leg assemblies can be automatically unfolded under the action of gravity and the elastic force of the torsion spring 17. It should be noted that in the present disclosure, there is at least one limiting hole so that the pin head 10 can be inserted into the limiting hole when the leg assembly is folded. In other embodiments, multiple limiting holes can also be set. For example, two limiting holes are set, one of which allows the pin head 10 to be inserted into the limiting hole when the leg assembly is folded, and the other allows the pin head 10 to be inserted into the limiting hole when the leg assembly is unfolded.

[0030] A limit piece 16 is respectively provided on the outer side of the first leg and the second leg, and the limit piece 16 is rotatably connected to the second rotating shaft 8. When the first leg and the second leg are unfolded, the limit piece 16 contacts the bracket body 1. Specifically, when the first leg and the second leg are unfolded, the limit piece 16 clamps the bracket body 1 to limit the unfolding angle of the first leg and the second leg.

[0031] Reinforcements 13 are provided at both ends of the bracket body 1, respectively. The reinforcements 13 are attached to the inner wall of the receiving groove, and the bottom surface of the reinforcement 13 is flush with or slightly lower than the bottom surface of the receiving groove. When the first leg and the second leg are unfolded, the limiter 16 contacts the reinforcement 13. Specifically, the reinforcement 13 is a U-shaped structure, and when the first leg and the second leg are unfolded, the limiter 16 is engaged with the reinforcement 13. Preferably, both ends of the first rotating shaft 3 are connected to the reinforcement 13. The provision of the reinforcement 13 can improve the structural strength of the connection between the first leg and the second leg and the bracket body 1, thereby improving the bearing capacity of the bracket body 1. Moreover, the provision of the reinforcement 13 at both ends of the bracket body 1 disclosed in the present invention can not only improve the bearing capacity, but also avoid excessively increasing the weight of the bracket body 1, so as to facilitate carrying.

[0032] The length of the reinforcement member 13 matches the rotation radius of the stopper 16 when rotating around the first rotation axis 3, so as to prevent the reinforcement member 13 from affecting the rotation of the stopper 16 when the connecting leg 7 rotates, thereby affecting the deployment of the leg assembly. Preferably, the length of the reinforcement member 13 at one end of the first rotation axis 3 provided at the bottom is shorter than the length of the reinforcement member 13 at the other end.

[0033] The first leg and the second leg have the same structure, which is a square tube structure with a side opening. The opening ends of the first leg and the second leg are arranged opposite to each other. When the first leg and the second leg are rotated to a folded state, the side surfaces on both sides of the opening ends of the first leg and the second leg are staggered and stacked. Specifically, the cross-sections of the first leg and the second leg are both U-shaped. When the first leg and the second leg are folded, the side walls of the U-shaped opening are staggered and stacked to form a square space, so as to reduce the space occupied by the first leg and the second leg after folding, thereby reducing the width of the bracket body 1 and improving portability.

[0034] The first leg includes an upper leg 5 and a lower leg 6, one end of the upper leg 5 is connected to the second rotating shaft 8, the other end of the upper leg 5 is slidably connected to the lower leg 6, the upper leg 5 is also provided with a plurality of positioning holes, and the lower leg 6 is provided with a positioning mechanism used in conjunction with the positioning holes. Specifically, the positioning mechanism includes a positioning plate, the middle part of which is rotatably connected to the lower leg 6, one end of the positioning plate is provided with a positioning column, the positioning column can be inserted into the positioning hole, and the other end of the positioning plate is provided with a pressing handle. When the pressing handle is pressed, the positioning plate rotates in a direction away from the lower leg 6, thereby driving the positioning column to disengage from the positioning hole. At this time, the position of the upper leg 5 and the lower leg 6 can be slidably adjusted. When the appropriate position is reached, the pressing handle can be released, the positioning plate rotates toward the direction of the lower leg 6, and the positioning column is inserted into the positioning hole to lock the upper leg 5 and the lower leg 6.

[0035] A folding rod is also hinged between the two upper legs 5 arranged opposite to each other, and the folding rod includes a first rod 18 and a second rod 19 that are hingedly connected. Specifically, the two ends of the folding rod are respectively hinged to the two upper legs 5, and the first rod 18 and the second rod 19 are hinged. When the first leg and the second leg are folded, the first rod 18 and the second rod 19 can be folded and located in a square space surrounded by the first leg and the second leg. When the first leg and the second leg are unfolded, the folding rod can increase the stability between the first leg and the second leg.

[0036] Both ends of the bracket body 1 are respectively provided with support components 2. The support components 2 are provided with strip-shaped grooves. The bracket body 1 is provided with sliding shafts 14 that cooperate with the strip-shaped grooves. The sliding shafts 14 are provided with turning clamps 15 for clamping the support components 2. Specifically, the support components 2 include L-shaped support frames. The L-shaped brackets are provided with strip-shaped grooves. One end of the sliding shaft 14 is connected to the bracket body 1, and the other end of the sliding shaft 14 passes through the strip-shaped groove and is connected to the turning clamp 15. By rotating the turning clamp 15, the L-shaped support frame and the bracket body 1 can be tightened or loosened.

[0037] The top of the bracket body 1 is further provided with a handle 20. Specifically, the top of the bracket body 1 is provided with a groove, and the handle 20 is arranged in the groove. When the sawhorse bracket works, the handle 20 can be located in the groove to prevent the handle 20 from protruding from the top surface of the sawhorse bracket and affecting the use of the sawhorse bracket.

[0038] The specific operation process is as follows. For the convenience of description, the first rotating shaft 3 located below is defined as the first rotating shaft one, the leg assembly connected to the first rotating shaft one is defined as the leg assembly one, the first rotating shaft 3 located above is defined as the first rotating shaft two, and the leg assembly connected to the first rotating shaft two is defined as the leg assembly two. When the sawhorse bracket needs to be folded, first place the sawhorse bracket upside down, fold the first leg and the second leg of the leg assembly two, fold the leg assembly two and store it in the receiving groove, then fold the first leg and the second leg of the leg assembly one, fold the leg assembly one and store it in the receiving groove, and insert the limit pin 4 into the limit hole to lock the leg assembly one, completing the folding of the sawhorse bracket. When the sawhorse bracket needs to be unfolded, first turn the opening of the receiving groove of the sawhorse bracket downward, then press the limit pin 4 to make the limit pin 4 disengage from the limit hole. The leg assembly one and the leg assembly two will unfold under the action of gravity. If the leg assembly gets stuck and fails to unfold completely during the unfolding process, manual assistance can be used to unfold the leg assembly in place. For example, use your foot to fully unfold the two sets of leg assemblies. The first leg and the second leg will automatically unfold under the elastic force of the torsion spring 17, completing the unfolding of the sawhorse bracket. The sawhorse bracket of the present disclosure does not require manual unfolding of the 4 legs. Only by unlocking the limit pin and relying on gravity and spring elastic force can the sawhorse bracket be unfolded, and the unfolding speed is fast.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model.

[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0041] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0042] In the present utility model, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. 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 a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0043] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as a limitation on the present utility model. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present utility model.

Claims

1. A saw horse stand, characterized in that: The foldable support leg is configured to have a first end and a second end, the first end of the support leg being connected to the foldable support leg and the second end of the support leg being folded and rotated relative to the first leg.

2. The saw horse stand according to claim 1, characterized in that: A limit pin is also provided on the connecting leg connected to the first rotating shaft located below, and the limit pin includes a pin head, a pin rod and a pin seat. One end of the pin rod is connected to the pin head, and the other end of the pin rod passes through the connecting leg and is connected to the pin seat. A limit spring is also provided between the pin head and the connecting leg, and the limit spring is sleeved on the pin rod. A limit hole is also provided on the side of the bracket body opposite to the pin head, and the limit hole is used in conjunction with the pin head.

3. The saw horse stand according to claim 1, characterized in that: Limiting members are respectively disposed on the outer sides of the first supporting leg and the second supporting leg. The limiting members are rotatably connected to the second rotating shaft. When the first supporting leg and the second supporting leg are unfolded, the limiting members are in contact with the bracket body.

4. The saw horse stand according to claim 3, characterized in that: Reinforcements are provided at both ends of the bracket body, respectively. The reinforcements are attached to the inner wall of the accommodating groove. The bottom surface of the reinforcement is flush with or slightly lower than the bottom surface of the accommodating groove. When the first leg and the second leg are unfolded, the limiter contacts the reinforcement.

5. The saw horse stand according to claim 4, characterized in that: The length of the reinforcement member matches the rotation radius of the limiting member when it rotates around the first rotation axis.

6. The saw horse stand according to claim 1, characterized in that: The first leg and the second leg have the same structure, which is a square tube structure with an open side. The open ends of the first leg and the second leg are arranged opposite to each other. When the first leg and the second leg are rotated to a folded state, the side surfaces on both sides of the open ends of the first leg and the second leg are staggered and stacked.

7. The saw horse stand according to claim 6, characterized in that: The first leg includes an upper leg and a lower leg, one end of the upper leg is connected to the second rotating shaft, the other end of the upper leg is slidably connected to the lower leg, a plurality of positioning holes are provided on the upper leg, and a positioning mechanism used in conjunction with the positioning holes is provided on the lower leg.

8. The saw horse stand according to claim 7, characterized in that: A folding rod is hinged between two upper legs arranged opposite to each other, and the folding rod comprises a first rod and a second rod which are hingedly connected.

9. The saw horse stand according to claim 1, characterized in that: The two ends of the bracket body are respectively provided with support components, the support components are provided with strip grooves, the bracket body is provided with a sliding shaft used in conjunction with the strip grooves, and the sliding shaft is provided with a flip clamp for clamping the support component.

10. The saw horse stand according to claim 1, characterized in that: A handle is also provided on the top of the bracket body.

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