CN207919753U - A kind of adjustable rack pedestal - Google Patents

Abstract

The utility model discloses an adjustable grid base, which relates to the technical field of steel structures. The utility model includes a square base frame and four height adjustment mechanisms arranged around the base frame. The bottom of the base frame is provided with a number of rollers; the height adjustment mechanism includes a screw seat, a screw rod, a rotating hand wheel, a connecting block and a cushion block. , the screw rod cooperates with the screw rod seat fixed on the base frame, the rotating hand wheel is fixed on the top of the screw rod, the spacer is fixed on the bottom of the connecting block by bolts, the connecting block is provided with a cavity with an open top, and the screw The bottom of the rod extends into the cavity, and the bottom of the screw rod is provided with an annular groove, and a locking bolt is arranged on the connecting block, and the end of the locking bolt is inserted into the annular groove. The connecting block and the bottom of the screw rod of the utility model can be quickly disassembled, which is convenient for replacing the vulnerable pads, and the height can be adjusted by rotating the handwheel, which is more convenient to use. In addition, the rollers at the bottom of the base frame increase the Mobility, more flexible use.

Description

An adjustable grid base

technical field

The utility model relates to the technical field of steel structures, in particular to an adjustable grid base.

Background technique

The base of the traditional network frame structure is often not adjustable, and when used on some uneven bottom surfaces, the network frame will be tilted, so the flexibility of use is not high, and the applicability is poor.

The existing application number is the invention patent of CN201710272080.X, the application announcement date is July 4, 2017, and the patent name is: a high-strength aluminum alloy support system. The application is composed of supporting legs, horizontal frame, aluminum beam and adjustable bracket. The adjustable bracket is composed of screw base plate, screw and nut assembly. The screw base plate is fixedly connected with one end of the screw rod. The nut assembly is a complete set. On the lead screw, the nut assembly includes the lead screw nut, the thrust self-aligning roller bearing and the elastic retaining ring for the hole. The lead screw nut is a T-shaped nut, and the end close to the lead screw bottom plate is a threaded end, which is threadedly connected with the lead screw. The other end is a T-shaped end with a T-shaped groove. The upper edge of the T-shaped end is provided with an outwardly extending edge. The thrust spherical roller bearing is arranged at the bottom of the groove and is closely connected with the inner wall of the groove. The thrust The rollers of the self-aligning roller bearing are in close contact with the wedge-shaped retaining ring, and the elastic retaining ring for the hole is arranged on the top of the wedge-shaped retaining ring, and is arranged on the T-shaped part of the groove. The adjustable base of this application can be adjusted in height, but it has the following disadvantages:

1. The screw bottom plate at the bottom of the screw screw is in contact with the ground for a long time, and under normal conditions, it is subjected to relatively large pressure, so the screw bottom plate is a vulnerable part, and the fixed connection between the screw bottom plate and the screw rod will make it difficult to replace;

2. The adjustable bracket of the high-strength aluminum alloy support system cannot be moved, the mobility is poor, and the use is not flexible;

3. It is inconvenient to adjust the height of the adjustable bracket of the high-strength aluminum alloy support system.

Contents of the invention

1. The technical problems to be solved by the utility model

The purpose of the utility model is to overcome the above-mentioned shortcomings existing in the existing base, and to provide an adjustable grid base. By adopting the technical solution of the utility model, the connection block and the bottom of the screw rod can be disassembled quickly, which is convenient for replacing the vulnerable pads, and the height can be adjusted by rotating the handwheel, which is more convenient to use. In addition, the number of rollers at the bottom of the base frame increases The mobility of the base is improved, and the use is more flexible.

2. Technical solution

In order to achieve the above object, the technical solution provided by the utility model is:

An adjustable grid base of the utility model comprises a square base frame and four height adjustment mechanisms arranged around the base frame. The bottom of the base frame is provided with several rollers, and the four sides of the base frame The corners are respectively equipped with mounting seats to install the frame unit of the square structure; the height adjustment mechanism includes a screw seat, a screw, a rotating hand wheel, a connecting block and a spacer, and the screw is fixed on the base. The screw mandrel seat on the frame is matched, and the screw mandrel is perpendicular to the base frame, the rotating hand wheel is fixed on the top of the screw mandrel, the pad is fixed on the bottom of the connecting block by bolts, and the connecting block is There is a cavity with an opening at the top, the bottom of the screw rod extends into the cavity, and the bottom of the screw rod is provided with an annular groove, and the connecting block is provided with a locking bolt perpendicular to the screw rod. The locking bolt is threadedly matched with the connecting block, and the end of the locking bolt is inserted into the annular groove to fix the connecting block on the bottom of the screw rod.

Furthermore, the said rollers are provided at four locations, respectively located at the bottoms of the four corners of the base frame.

Furthermore, the screw seat is fixed on the outside of the frame of the base frame.

Furthermore, the screw seat is fixed in the middle of the frame of the base frame.

3. Beneficial effects

Adopting the technical solution provided by the utility model, compared with the existing known technology, has the following beneficial effects:

(1) An adjustable grid base of the utility model has an annular groove at the bottom of the screw rod, and a locking bolt perpendicular to the screw rod is arranged on the connecting block, and the end of the locking bolt is inserted into the annular groove. In the groove, the fixing and separation between the connecting block and the screw rod can be controlled by rotating the locking bolt, which is convenient for replacing the fragile pad at the bottom of the connecting block.

(2) An adjustable net frame base of the present utility model has four height adjustment mechanisms. When the pads of a height adjustment mechanism need to be replaced, the position of the screw rod can be directly adjusted up, and the pads can be removed. The other three height adjustment mechanisms can still maintain the stability of the structure.

(3) An adjustable grid base of the utility model, the height of the base is adjusted by turning the rotating hand wheel, and the base is kept horizontal, and the adjustment action is simple and convenient.

(4) An adjustable net frame base of the present invention, the rollers at the bottom of the base frame increase the mobility of the base, making it more flexible to use.

Description of drawings

Fig. 1 is the structural representation of a kind of adjustable network frame base of the present utility model;

Fig. 2 is the assembly schematic diagram of the height adjustment mechanism of the present utility model;

FIG. 3 is a partial schematic diagram of FIG. 2 .

Explanation of the labels in the schematic diagram:

11, pedestal; 111, mounting seat; 12, screw seat; 13, screw; 131, annular groove; 14, rotating handwheel; 15, connecting block; 151, cavity; 16, cushion block; 17, Lock the bolts.

Detailed ways

In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

Example

With reference to Fig. 1, a kind of adjustable grid base of the present embodiment includes a square base frame 11 and four height adjustment mechanisms located around the base frame 11, and the bottom of the base frame 11 is provided with several rollers, specifically, There are four rollers, which are located at the bottom of the four corners of the base frame 11 respectively. In addition, the four corners of the base frame 11 are respectively provided with mounting bases 111 for mounting the frame unit of a quadrilateral structure (the four corners of the bottom of the frame unit are respectively fixedly mounted on the four mounting bases 111 ).

2 and 3, the height adjustment mechanism includes a screw seat 12, a screw 13, a rotating hand wheel 14, a connecting block 15 and a spacer 16, and the screw 13 cooperates with the screw seat 12 fixed on the base frame 11. , and the screw mandrel 13 is perpendicular to the base frame 11 (the screw mandrel 13 is perpendicular to the four frames of the base frame 11); the rotating hand wheel 14 is fixed on the top of the screw mandrel 13, and the spacer 16 is fixed on the bottom of the connecting block 15 by bolts, The connecting block 15 is provided with a cavity 151 with a top opening, and the bottom of the screw mandrel 13 stretches into the cavity 151. Preferably, the diameter at the bottom of the screw mandrel 13 is equal to the inner diameter of the cavity 151; the bottom of the screw mandrel 13 is provided with an annular Groove 131, the connecting block 15 is provided with a locking bolt 17 perpendicular to the screw mandrel 13, the locking bolt 17 is threaded with the connecting block 15, and the end of the locking bolt 17 is inserted in the annular groove 131 to lock the connecting block 15 is fixed on the bottom of screw mandrel 13. The fixing and separation between the connecting block 15 and the screw mandrel 13 can be controlled by rotating the locking bolt 17, which facilitates the replacement of the fragile pad 16 at the bottom of the connecting block 15.

Preferably, the screw seat 12 is fixed on the outside of the frame of the base frame 11 , and the screw seat 12 is fixed on the middle of the frame of the base frame 11 .

In order to better understand the adjustable grid base of this embodiment, the use process of this embodiment will be briefly described with reference to FIGS. 1 to 3 . First move the base to the designated position as required, and when the ground is level, turn the rotary handwheel 14 of the height adjustment mechanism at four places so that each pad 16 is against the ground to fix the position of the base; When it is uneven, adjust one or several height adjustment mechanisms so that the base is in a horizontal state; when it is necessary to replace a certain pad 16, directly adjust the position of the screw rod 13 at that place, and then loosen the locking bolt 17 and lock it. The end of bolt 17 deviates from in annular groove 131, and connecting block 15 is pulled down from screw mandrel 13 bottoms, and spacer 16 is unloaded from connecting block 15 and replaced at last.

An adjustable net frame base of the utility model can be quickly disassembled between the connecting block and the bottom of the screw rod, which is convenient for replacing the vulnerable pads, and the height can be adjusted by rotating the handwheel, which is more convenient to use. In addition, the basic The rollers at the bottom of the stand increase the mobility of the base, making it more flexible to use.

The above has schematically described the utility model and its implementation, which is not restrictive, and what is shown in the accompanying drawings is only one implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, without departing from the purpose of the invention of the utility model, without creatively designing a structure and an embodiment similar to the technical solution, it shall belong to the utility model. protected range.

Claims (4)

1. a kind of adjustable rack pedestal, it is characterised in that：Pedestal (11) including square and it is set to pedestal (11) surrounding Height adjustment mechanism everywhere, the bottom of the pedestal (11) is equipped with several idler wheels, and four corners punishment of pedestal (11) Not She You mounting base (111) to install the frame unit of tetragonal body structure；The height adjustment mechanism include screw rodb base (12), Lead screw (13), rotation hand wheel (14), link block (15) and cushion block (16), the lead screw (13) and are installed on pedestal (11) Screw rodb base (12) cooperation, and lead screw (13), perpendicular to pedestal (11), the rotation hand wheel (14) is fixedly arranged on lead screw (13) Top, the cushion block (16) are bolted on the bottom of link block (15), and the link block (15) is equipped with a top The bottom of the cavity (151) of portion's opening, the lead screw (13) is stretched into cavity (151), and the bottom of lead screw (13) is equipped with one Annular groove (131) is provided with a clamping screw (17) perpendicular to lead screw (13), the locking screw on the link block (15) Bolt (17) and link block (15) screw-thread fit, and the end of clamping screw (17) is inserted into annular groove (131) with by link block (15) it is fixed on the bottom of lead screw (13).

2. a kind of adjustable rack pedestal according to claim 1, it is characterised in that：The idler wheel is equipped with everywhere, It is located at the bottom of four corners of pedestal (11).

3. a kind of adjustable rack pedestal according to claim 2, it is characterised in that：The screw rodb base (12) is fixed In the outside of the frame of pedestal (11).

4. a kind of adjustable rack pedestal according to claim 3, it is characterised in that：The screw rodb base (12) is fixed In the middle part of the frame of pedestal (11).