Adjustable supporting structure and engineering machinery

Abstract

The utility model discloses an adjustable supporting structure and engineering machinery, which comprises a lifting shaft, a base is arranged below the lifting shaft, and a top seat is arranged above the lifting shaft; a base shaft is arranged at the top of the base, threads are arranged on the outer surface of the base shaft, threads are arranged on the inner surface of the lifting shaft, and the base shaft is connected with the internal threads of the lifting shaft; a top seat shaft is arranged at the bottom of the top seat, threads are arranged on the outer surface of the top seat shaft, an annular flange is arranged on the outer circumferential face of the lifting shaft, the outer circumferential face of the lifting shaft is sleeved with a protective shell, the annular flange is located in the protective shell, and threads are arranged on the inner surface of the protective shell. A rotating hole is formed in the middle of the bottom of the protective shell and located below the annular flange. The supporting structure is reasonable in structural design, the supporting structure is simplified, rapid disassembly and assembly are achieved, and large-mass objects can be supported.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to an adjustable support structure and engineering machinery. Background Technology

[0002] In order to adjust the height of the supported components, the existing support structure generally has a base and a top. The height between the base and the top is adjusted by several screws and nuts, and the top supports the components upward.

[0003] Because the existing support structure is relatively complex, it cannot be quickly disassembled and assembled. Furthermore, due to uneven stress distribution, it cannot support large objects, causing inconvenience in use. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable support structure and engineering machinery to solve the technical problems that existing support structures have a relatively complex structure, so they cannot be quickly disassembled and assembled, and they cannot support large-mass objects due to uneven stress, resulting in inconvenience in use.

[0005] To achieve the above objectives, the present invention provides an adjustable support structure, including a lifting shaft, a base below the lifting shaft, and a top seat above the lifting shaft; a base shaft at the top of the base, the outer surface of the base shaft being threaded, and the inner surface of the lifting shaft being threaded, the base shaft being threaded to the inner surface of the lifting shaft; a top seat shaft at the bottom of the top seat, the outer surface of the top seat shaft being threaded, an annular flange on the outer circumference of the lifting shaft, a protective shell fitted over the outer circumference of the lifting shaft, the annular flange being located inside the protective shell, the inner surface of the protective shell being threaded, and a rotating hole at the bottom center of the protective shell, the rotating hole being located below the annular flange; the lifting shaft is internally rotatably connected to the top seat shaft, the protective shell is externally threaded to the top seat shaft, and the rotating hole is rotatably connected to the outer circumference of the lifting shaft.

[0006] Furthermore, a tightening mechanism is fitted onto the outer circumferential surface of the lifting shaft. The tightening mechanism is connected and fixed to the outer circumferential surface of the lifting shaft and is located below the protective shell. The interior of the tightening mechanism is a circular channel, and the exterior of the tightening mechanism is provided with several pry holes.

[0007] Furthermore, the tightening mechanism is provided with a number of rectangular blocks on its exterior, and the number of rectangular blocks are arranged sequentially around the circumference of the tightening mechanism, and the number of pry holes are respectively provided on the number of rectangular blocks.

[0008] Furthermore, the outer circumferential surface of the lifting shaft includes a first outer circumferential surface and a second outer circumferential surface arranged sequentially from top to bottom. A limiting step is formed between the first outer circumferential surface and the second outer circumferential surface. The annular flange is disposed on the first outer circumferential surface. The rotating hole is rotatably connected to the first outer circumferential surface. The tightening mechanism is sleeved on the second outer circumferential surface.

[0009] Furthermore, the outer diameter of the first outer circumferential surface is larger than the outer diameter of the second outer circumferential surface, and the top of the tightening mechanism abuts against the limiting step.

[0010] Furthermore, a first limiting groove extending vertically is provided on the second outer circumferential surface, and a second limiting groove is provided on the inner circumferential surface of the tightening mechanism. The first limiting groove and the second limiting groove are fixedly engaged by a wedge key.

[0011] Furthermore, the top of the lifting shaft is provided with an assembly step, on which a needle roller bearing is mounted, and the needle roller bearing engages with the top of the top seat shaft.

[0012] Furthermore, the base has an upwardly protruding base shaft at the top center, which is a hollow cylinder with a closed bottom and an open top; the top seat has a downwardly protruding top seat shaft at the bottom center, which is a hollow cylinder with a closed top and an open bottom; and the lifting shaft is a hollow cylinder with its interior running vertically through it.

[0013] Furthermore, the bottom of the base is provided with a first anti-slip pad; the top of the top seat is provided with a second anti-slip pad.

[0014] This utility model also provides an engineering machinery, including an engineering machinery body and an adjustable support structure as described in any of the above technical solutions, wherein the adjustable support structure is disposed on the engineering machinery body.

[0015] In summary, the application of the technical solution of this utility model has the following beneficial effects: The structure design of this utility model is reasonable. (1) It includes a lifting shaft, a base is provided below the lifting shaft, and a top seat is provided above the lifting shaft; a base shaft is provided on the top of the base, the outer surface of the base shaft is threaded, the inner surface of the lifting shaft is threaded, and the base shaft is connected to the internal thread of the lifting shaft; thus, when the user drives the lifting shaft to rotate relative to the base shaft, the height adjustment between the base and the top seat can be realized, the lifting and lowering of the support structure can be controlled, and the required support effect can be achieved. (2) A top seat shaft is provided at the bottom of the top seat, and the outer surface of the top seat shaft is threaded. An annular flange is provided on the outer circumference of the lifting shaft. A protective shell is fitted on the outer circumference of the lifting shaft, with the annular flange located inside the protective shell. The inner surface of the protective shell is threaded, and a rotating hole is provided in the middle of the bottom of the protective shell, located below the annular flange. The lifting shaft and the top seat shaft are internally rotatably connected, the protective shell and the top seat shaft are externally threadedly connected, and the rotating hole is rotatably connected to the outer circumference of the lifting shaft. Therefore, during actual installation, the user can first place the top seat on the lifting shaft, then rotate the protective shell upwards to connect it with the threaded top seat shaft until the edge of the rotating hole abuts against the annular flange, completing the installation, which is very convenient. During actual disassembly, the user can first rotate the protective shell downwards to disengage it from the top seat shaft, and then the top seat can be disengaged upwards from the lifting shaft, which is very convenient. In addition, when this utility model actually plays a supporting role, both the annular flange and the top of the lifting shaft can support the top seat, thus facilitating the support of large-mass objects. Analysis shows that this invention simplifies the support structure, enables quick assembly and disassembly, and can support large-mass objects. Attached Figure Description

[0016] Figure 1 This is an exploded structural diagram of the adjustable support structure of this utility model;

[0017] Figure 2 This is a front view cross-sectional structural diagram of the adjustable support structure of this utility model;

[0018] Figure 3 This is a sectional view of the adjustable support structure of this utility model.

[0019] Explanation of reference numerals in the attached drawings: lifting shaft (1), base (2), top seat (3), protective shell (4), tightening mechanism (5), wedge key (6), needle roller bearing (7), first anti-slip pad (8), second anti-slip pad (9); annular flange (101), first outer circumferential surface (102), second outer circumferential surface (103), limiting step (104), first limiting groove (105), assembly step (106); base shaft (201), top seat shaft (301), rotating hole (401); pry hole (501), second limiting groove (502), rectangular block (503). Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.

[0021] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 1 When observing, the observer above is designated as "up" and the observer below as "down." It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below," etc., used in this document to indicate orientation or positional relationships are based on the accompanying drawings and are solely for the purpose of clearly describing this utility model. They do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0022] See Figures 1 to 3This embodiment provides an adjustable support structure, including a lifting shaft 1, a base 2 below the lifting shaft 1, and a top seat 3 above the lifting shaft 1; a base shaft 201 is provided at the top of the base 2, the outer surface of the base shaft 201 is threaded, the inner surface of the lifting shaft 1 is threaded, and the base shaft 201 is threaded to the inner surface of the lifting shaft 1; a top seat shaft 301 is provided at the bottom of the top seat 3, the outer surface of the top seat shaft 301 is threaded, an annular flange 101 is provided on the outer circumferential surface of the lifting shaft 1, a protective shell 4 is fitted on the outer circumferential surface of the lifting shaft 1, the annular flange 101 is located inside the protective shell 4, the inner surface of the protective shell 4 is threaded, and a rotating hole 401 is provided in the middle of the bottom of the protective shell 4, the rotating hole 401 is located below the annular flange 101; the lifting shaft 1 is rotatably connected to the inner surface of the top seat shaft 301, the protective shell 4 is threaded to the outer surface of the top seat shaft 301, and the rotating hole 401 is rotatably connected to the outer circumferential surface of the lifting shaft 1. Function: (1) The lifting shaft is provided with a base below the lifting shaft and a top seat above the lifting shaft; the base shaft is provided with a base shaft on the top of the base shaft, the outer surface of the base shaft is provided with a thread, the inner surface of the lifting shaft is provided with a thread, and the base shaft is connected to the internal thread of the lifting shaft; thus, when the user drives the lifting shaft to rotate relative to the base shaft, the height between the base and the top seat can be adjusted, the lifting and lowering of the support structure can be controlled, and the required support effect can be achieved. (2) A top seat shaft is provided at the bottom of the top seat, and the outer surface of the top seat shaft is threaded. An annular flange is provided on the outer circumference of the lifting shaft. A protective shell is fitted on the outer circumference of the lifting shaft, with the annular flange located inside the protective shell. The inner surface of the protective shell is threaded, and a rotating hole is provided in the middle of the bottom of the protective shell, located below the annular flange. The lifting shaft and the top seat shaft are internally rotatably connected, the protective shell and the top seat shaft are externally threadedly connected, and the rotating hole is rotatably connected to the outer circumference of the lifting shaft. Therefore, during actual installation, the user can first place the top seat on the lifting shaft, then rotate the protective shell upwards to connect it with the threaded top seat shaft until the edge of the rotating hole abuts against the annular flange, completing the installation, which is very convenient. During actual disassembly, the user can first rotate the protective shell downwards to disengage it from the top seat shaft, and then the top seat can be disengaged upwards from the lifting shaft, which is very convenient. In addition, when this utility model actually plays a supporting role, both the annular flange and the top of the lifting shaft can support the top seat, thus facilitating the support of large-mass objects. Analysis shows that this invention simplifies the support structure, enables quick assembly and disassembly, and can support large-mass objects.

[0023] Specifically, a tightening mechanism 5 is fitted onto the outer circumference of the lifting shaft 1. The tightening mechanism 5 is connected and fixed to the outer circumference of the lifting shaft 1 and is located below the protective shell 4. The interior of the tightening mechanism 5 is a circular channel, and the exterior of the tightening mechanism 5 has several pry holes 501. Function: The entire support structure, through the prying tools such as pry bars and the pry holes 501, can be adjusted in height via the tightening mechanism in the middle to achieve the supporting effect.

[0024] Specifically, the tightening mechanism 5 has several rectangular blocks 503 on its exterior, arranged sequentially around the circumference of the tightening mechanism 5, and several pry holes 501 are respectively provided on the rectangular blocks 503. Function: The rectangular blocks facilitate the use of pry holes with pry bars.

[0025] Specifically, the outer circumferential surface of the lifting shaft 1 includes a first outer circumferential surface 102 and a second outer circumferential surface 103 arranged sequentially from top to bottom. A limiting step 104 is formed between the first outer circumferential surface 102 and the second outer circumferential surface 103. An annular flange 101 is disposed on the first outer circumferential surface 102. A rotating hole 401 is rotatably connected to the first outer circumferential surface 102. A tightening mechanism 5 is sleeved on the second outer circumferential surface 103. Function: Due to the arrangement of the first outer circumferential surface 102, the second outer circumferential surface 103, and the limiting step 104, the tightening mechanism 5 and the protective shell 4 can be installed more conveniently.

[0026] Specifically, the outer diameter of the first outer circumferential surface 102 is larger than the outer diameter of the second outer circumferential surface 103, and the top of the tightening mechanism 5 abuts against the limiting step 104. Function: The abutment of the limiting step 104 limits the tightening mechanism 5 in the upward direction, facilitating the quick installation of the tightening mechanism 5.

[0027] Specifically, the second outer circumferential surface 103 is provided with a vertically extending first limiting groove 105, and the inner circumferential surface of the tightening mechanism 5 is provided with a second limiting groove 502. The first limiting groove 105 and the second limiting groove 502 are fixedly engaged by a wedge key 6. Function: When the top of the tightening mechanism 5 abuts against the limiting step 104, the wedge key 6 is embedded to fix the tightening mechanism 5 and the lifting shaft together; when complete disassembly is required, the base can be removed first, then the wedge key 6 can be taken out, and then the tightening mechanism 5 and the protective shell 4 can be removed in sequence to remove the top seat.

[0028] Specifically, the top of the lifting shaft 1 is provided with an assembly step 106, on which a needle roller bearing 7 is mounted. The needle roller bearing 7 mates with the top of the top seat shaft 301. Functions: It serves as a protective housing and can also protect the internal needle roller bearing; the needle roller bearing reduces the friction between the lifting shaft 1 and the top seat shaft 301 and facilitates tightening when needed.

[0029] Specifically, the base 2 has an upwardly protruding base shaft 201 at the top center, which is a hollow cylinder with a closed bottom and an open top; the top seat 3 has a downwardly protruding top seat shaft 301 at the bottom center, which is also a hollow cylinder with a closed top and an open bottom; the lifting shaft 1 is a hollow cylinder with its interior running vertically through it. Function: This design facilitates the lifting and lowering of the supporting structure, as well as easy assembly, disassembly, and support.

[0030] Specifically, the bottom of the base 2 is provided with a first anti-slip pad 8; the top of the top seat 3 is provided with a second anti-slip pad 9. Function: The top seat 3 is used to support heavy objects, and the anti-slip pads prevent the support structure from falling off.

[0031] This utility model also provides an engineering machinery, including the engineering machinery body and an adjustable support structure according to any of the above-mentioned technical solutions, wherein the adjustable support structure is disposed on the engineering machinery body. Function: The adjustable support structure of this utility model can be applied to heavy-duty and confined space conditions, such as in special-purpose machinery and other engineering machinery, and can be selected according to needs.

[0032] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. An adjustable support structure comprising a lifting shaft (1), characterized in that: The bottom of the lifting shaft (1) is provided with a base (2), and the top of the lifting shaft (1) is provided with a top seat (3); the top of the base (2) is provided with a base shaft (201), the outer surface of the base shaft (201) is provided with threads, the inner surface of the lifting shaft (1) is provided with threads, and the base shaft (201) is connected with the inner threads of the lifting shaft (1); the bottom of the top seat (3) is provided with a top seat shaft (301), the outer surface of the top seat shaft (301) is provided with threads, the outer circumferential surface of the lifting shaft (1) is provided with an annular flange (101), the outer circumferential surface of the lifting shaft (1) is sleeved with a protective shell (4), the annular flange (101) is located in the protective shell (4), the inner surface of the protective shell (4) is provided with threads, the bottom of the protective shell (4) is provided with a rotating hole (401), and the rotating hole (401) is located below the annular flange (101); the lifting shaft (1) is rotatably connected with the inside of the top seat shaft (301), the protective shell (4) is threadedly connected with the outside of the top seat shaft (301), and the rotating hole (401) is rotatably connected with the outer circumferential surface of the lifting shaft (1).

2. The adjustable support structure of claim 1, wherein: The outer circumferential surface of the lifting shaft (1) is also sleeved with a tightening mechanism (5), the tightening mechanism (5) is connected and fixed with the outer circumferential surface of the lifting shaft (1), and the tightening mechanism (5) is located below the protective shell (4); the inside of the tightening mechanism (5) is in the shape of a circular channel, and the outside of the tightening mechanism (5) is provided with a plurality of pry holes (501).

3. The adjustable support structure of claim 2, wherein: The outside of the tightening mechanism (5) is provided with a plurality of rectangular blocks (503), a plurality of the rectangular blocks (503) are sequentially arranged around the circumferential direction of the tightening mechanism (5), and a plurality of the pry holes (501) are arranged on a plurality of the rectangular blocks (503) respectively.

4. The adjustable support structure of claim 2, wherein: The outer circumferential surface of the lifting shaft (1) comprises a first outer circumferential surface (102) and a second outer circumferential surface (103) which are sequentially arranged from top to bottom, a limiting step (104) is formed between the first outer circumferential surface (102) and the second outer circumferential surface (103), the annular flange (101) is arranged on the first outer circumferential surface (102), the rotating hole (401) is rotatably connected with the first outer circumferential surface (102), and the tightening mechanism (5) is sleeved on the second outer circumferential surface (103).

5. The adjustable support structure of claim 4, wherein: The outer diameter of the first outer circumferential surface (102) is greater than that of the second outer circumferential surface (103), and the top of the tightening mechanism (5) abuts against the limiting step (104).

6. The adjustable support structure of claim 5, wherein: The second outer circumferential surface (103) is provided with a first limiting groove (105) extending vertically, the inner circumferential surface of the tightening mechanism (5) is provided with a second limiting groove (502), and the first limiting groove (105) and the second limiting groove (502) are fixedly matched through a wedge key (6).

7. An adjustable support structure according to any one of claims 1 to 6, wherein: The top of the lifting shaft (1) is provided with an assembly step (106), the assembly step (106) is provided with a needle bearing (7), and the needle bearing (7) is matched with the top in the top seat shaft (301).

8. An adjustable support structure according to any one of claims 1 to 6, wherein: The top middle of the base (2) is provided with the upwardly protruding base shaft (201), which is a hollow cylindrical shape with a closed bottom end and an open top end; the bottom middle of the top base (3) is provided with the downwardly protruding top base shaft (301), which is a hollow cylindrical shape with a closed top end and an open bottom end; the lifting shaft (1) is a hollow cylindrical shape with an internal up-down through hole.

9. An adjustable support structure according to any one of claims 1 to 6, wherein: The bottom of the base (2) is provided with a first anti-skid gasket (8); the top of the top base (3) is provided with a second anti-skid gasket (9).

10. A working machine comprising a working machine body, characterised in that: Also included is the adjustable support structure of any one of claims 1 to 9, which is arranged on the body of the engineering machinery.

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