Steel structure supporting frame for building

Abstract

The utility model discloses a building steel structure supporting frame which comprises a plurality of supporting rods, sliding seats are arranged on the tops and the bottoms of the inner sides of the supporting rods, the sliding seats can move up and down along the supporting rods, a pair of diagonal draw bars is arranged between every two adjacent supporting rods, and the diagonal draw bars are connected with the supporting rods. The diagonal draw bars are arranged along the diagonal lines of the two adjacent supporting rods, and the two ends of each diagonal draw bar are rotationally connected with the corresponding sliding seats correspondingly. Connecting rods are arranged at the tops and the bottoms of the opposite faces of the two supporting rods correspondingly, and every two aligned connecting rods are connected through a two-way screw. The guide grooves are formed in the inner sides of the supporting rods, the sliding seats can move up and down along the guide grooves, and the diagonal draw bars and the sliding seats move, so that the distance between the two supporting rods can be adjusted by adjusting the inclination angles of the diagonal draw bars, and the two supporting rods are convenient to use; meanwhile, a connecting rod and a two-way screw rod are further arranged, and the distance between the two supporting rods can be further fixed through the connecting rod and the two-way screw rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to support frame technical field, concretely is a steel structure support frame for building. BACKGROUND

[0002] In modern construction engineering, steel structure support frame as an important support system is widely used in various construction projects, such as the construction process of large commercial complexes, industrial plants, high-rise buildings and the like, and is also widely used in some temporary building support scenes. Steel structure support frame is widely used in various scenes, and the structure is also various.

[0003] In the prior art, the utility model with publication number CN216446590U discloses an assembled steel structure support frame for building, which comprises a base, a support frame, a support rod vertically arranged on the base, a fixing bottom plate for fixing the bottom of the support rod on the base, an extension rod movably arranged in the support rod, a supporting piece arranged at the top end of the extension rod, the supporting piece being connected with the support frame, a supporting piece fixedly installed at the bottom of the base, supporting legs arranged around the supporting piece, the supporting legs being connected with the base, a connecting rod arranged between the support rod and the extension rod, a movable rod movably installed in the connecting rod, and a limiting bolt for fixing the movable rod. The base of the steel structure support frame is provided with a support rod, the support rod is provided with an extension rod, the extension rod is provided with a supporting piece connected with the support frame, the structure is flexible, the steel structure support frame is convenient for quick assembly and adjustment during construction, and can be quickly disassembled and recovered; compared with the traditional support frame, the steel structure support frame has higher stability and ensures the safety of construction.

[0004] The steel structure support frame provided by the above patent needs to use the extension rod to support the support rod, but the existing extension rod is inconvenient to adjust, and when adjusting the distance between the two support rods, the extension rod needs to be telescoped, which is inconvenient to operate, and the inclination angle of the fixed extension rod cannot be adjusted. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a steel structure support frame for building, which aims at improving the inconvenience of adjusting the existing steel structure support frame and the problem that the inclination angle of the extension rod cannot be adjusted after being fixed.

[0006] The utility model is implemented as follows:

[0007] The utility model provides a kind of steel structure support frame for building, including support pole, the support pole is provided with multiple, the inside top and bottom of the support pole are equipped with slide, the slide can be moved up and down along support pole, a pair of diagonal pull rods are equipped between adjacent support pole, the diagonal pull rod is arranged along the diagonal of two adjacent support pole, and the both ends of the diagonal pull rod are rotatably connected with corresponding slide respectively;The top and bottom of the opposite side of two support poles are equipped with connecting rod, and the two connecting rods are connected by bidirectional screw rod between alignment.

[0008] Preferably, the support pole is in the shape of an I-beam, and the inside corners of the support pole are provided with guide grooves, and the top and bottom of the support pole are provided with a plurality of perforations.

[0009] Preferably, the slide is provided with a guide rod at the corner, the guide rod is engaged in the inside of the guide groove, one side of the outside of the slide is provided with a pair of ear plates, the middle of the ear plate is provided with a counterbore, and the other side of the slide is provided with a top wire for fixing the position of the slide.

[0010] Preferably, the diagonal pull rod is provided with an adapter plate at both ends, the middle of the adapter plate is provided with a connecting hole, and the adapter plate and the ear plate are rotatably connected by a pin shaft.

[0011] Preferably, the connecting rod is provided with an end plate at one end, the edge of the end plate is provided with a plurality of bolt holes, and the other end of the connecting rod is provided with a threaded groove.

[0012] Preferably, the bidirectional screw rod is provided with a separation block between the threads in two different directions, the separation block is provided with a rotating handle for rotating the bidirectional screw rod, and the bidirectional screw rod is threadedly connected with the threaded groove, respectively.

[0013] Preferably, it further includes a connecting pin, the middle of the diagonal pull rod is provided with a pin hole, the pin holes of two diagonal pull rods are arranged in alignment, the connecting pin passes through the pin holes of two diagonal pull rods, and the end of the connecting pin is provided with a limiting plate.

[0014] Preferably, it further includes a mounting seat, the mounting seat is sleeved on the top end and the bottom end of the support pole, and the mounting seat and the support pole are connected by bolts.

[0015] Preferably, the bottom end of the mounting seat is provided with a plurality of bottom holes, the middle of the mounting seat is provided with a sleeve joint, a plurality of reinforcing plates are provided between the corner of the sleeve joint and the bottom of the mounting seat, and a plurality of mounting holes are provided on the sleeve joint.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. The utility model discloses a guide groove is equipped with in the inside of support rod, and the slide can move up and down along the guide groove, and the inclined pull rod moves with the slide, so that the distance between the two support rods can be adjusted by adjusting the inclination angle of the inclined pull rod, and the use of the two support rods is convenient, and the distance between the two support rods can be further fixed through the connecting rod and the bidirectional screw rod, and the distance between the two support rods can also be adjusted.

[0018] 2. The utility model discloses a connecting pin, and the connecting pin can stably connect the inclined pull rods with each other, ensuring the cooperation of the two inclined pull rods.

[0019] 3. The utility model discloses a mounting seat for supporting the support rod, facilitating the installation and fixation of the support rod, and this mode greatly facilitates the fixation and use of the support rod, and also facilitates the disassembly according to the construction requirement. DRAWINGS

[0020] Figure 1 It is the structure schematic diagram of the utility model whole;

[0021] Figure 2 It is the structure schematic diagram of the utility model support rod;

[0022] Figure 3 It is the structure schematic diagram of the utility model slide;

[0023] Figure 4 It is the structure schematic diagram of the utility model inclined pull rod;

[0024] Figure 5 It is the structure schematic diagram of the utility model connecting rod;

[0025] Figure 6 It is the structure schematic diagram of the utility model bidirectional screw rod;

[0026] Figure 7 It is the structure schematic diagram of the utility model connecting pin;

[0027] Figure 8 It is the structure schematic diagram of the utility model mounting seat.

[0028] In the drawing: 1, support rod; 11, guide groove; 12, through hole; 2, slide; 21, guide rod; 22, jackscrew; 23, ear plate; 24, counterbore; 3, inclined pull rod; 31, adapter plate; 32, connecting hole; 33, pin shaft hole; 4, connecting rod; 41, screw groove; 42, end plate; 43, bolt hole; 5, bidirectional screw rod; 51, partition block; 52, rotating handle; 6, connecting pin; 61, limit plate; 7, mounting seat; 71, bottom hole; 72, reinforcing plate; 73, socket joint; 74, mounting hole. DETAILED DESCRIPTION

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0031] Example 1

[0032] like Figure 1 As shown, a steel structure support frame for construction includes multiple support rods 1, which are used to support the steel structure of the building. Each support rod 1 has a sliding seat 2 at its top and bottom, which can move up and down along the support rod 1. A pair of diagonal tie rods 3 are provided between adjacent support rods 1, arranged diagonally along the two adjacent support rods 1. The two ends of the diagonal tie rods 3 are rotatably connected to the corresponding sliding seats 2. The sliding seats 2 cooperate with the diagonal tie rods 3 to facilitate stable up and down movement of the diagonal tie rods 3, allowing for tilt angle adjustment and also facilitating the adjustment of the distance between the two support rods 1. Each of the opposite sides of two support rods 1 has a connecting rod 4 at its top and bottom. Two aligned connecting rods 4 are connected by a double-acting screw 5. The cooperation between the connecting rods 4 and the double-acting screw 5 facilitates the adjustment of the distance between the two support rods 1 in conjunction with the diagonal tie rods 3, and ensures stability between the two support rods 1.

[0033] like Figure 2 As shown, the support rod 1 has an I-shaped structure, which facilitates stable support for various structures. Guide grooves 11 are provided at the inner corners of the support rod 1, which facilitate the installation of sliders and allow for easy adjustment of the sliders' vertical movement. Multiple through holes 12 are provided at the top and bottom of the support rod 1, which facilitate connection of the support rod 1 to other components.

[0034] like Figure 3 As shown, guide rods 21 are provided at each corner of the slide block 2. The guide rods 21 are engaged inside the guide groove 11. This structure facilitates the sliding connection between the slide block 2 and the support rod 1, and allows the slide block 2 to move up and down and be used easily. A pair of ear plates 23 are provided on the outer side of the slide block 2. A countersunk hole 24 is provided in the center of the ear plates 23. The cooperation between the ear plates 23 and the countersunk hole 24 facilitates the rotatable connection between the slide block 2 and the tie rod 3. A set screw 22 is provided on the other side of the slide block 2 to fix its position.

[0035] As shown in Figure 4 , the oblique pull rod 3 is provided with a transition plate 31 at both ends, the middle of the transition plate 31 is provided with a connecting hole 32, and the transition plate 31 and the lug plate 23 are connected by a pin shaft. This structure is convenient for the oblique pull rod 3 to cooperate with the sliding seat 2, and is convenient for the installation and fixation of the oblique pull rod 3.

[0036] As shown in Figure 5 , one end of the connecting rod 4 is provided with an end plate 42, and the edge of the end plate 42 is provided with a plurality of bolt holes 43. The cooperation of the end plate 42 and the bolt hole 43 is convenient for fixing the position of the connecting rod 4 by bolts. The other end of the connecting rod 4 is provided with a threaded groove 41, which is convenient for connecting with the bidirectional screw rod 5.

[0037] As shown in Figure 6 , the bidirectional screw rod 5 is provided with a partition block 51 between the threads in two different directions. The partition block 51 is convenient for separating the threads in different directions, and is convenient for the stable use of the bidirectional screw rod 5. The partition block 51 is provided with a rotating handle 52 for rotating the bidirectional screw rod 5. The bidirectional screw rod 5 is respectively connected with the threaded groove 41 in screw thread.

[0038] Example 2

[0039] As shown in Figure 1 , a steel structure support frame for building, comprising a plurality of support rods 1, the support rod 1 is convenient for supporting the building steel structure. The inner side top and bottom of the support rod 1 are provided with a sliding seat 2, the sliding seat 2 can move up and down along the support rod 1, a pair of oblique pull rods 3 are arranged between adjacent support rods 1, the oblique pull rod 3 is arranged along the diagonal line of two adjacent support rods 1, and the two ends of the oblique pull rod 3 are respectively connected with the corresponding sliding seat 2; the sliding seat 2 cooperates with the oblique pull rod 3, which is convenient for the stable up and down movement of the oblique pull rod 3, and is convenient for the inclination adjustment of the oblique pull rod 3, and is also convenient for adjusting the distance between the two support rods 1 by the inclination adjustment of the oblique pull rod 3. The top and bottom of the opposite side of the two support rods 1 are respectively provided with a connecting rod 4, and the two connecting rods 4 are connected by a bidirectional screw rod 5. The cooperation of the connecting rod 4 and the bidirectional screw rod 5 is convenient for adjusting the distance between the two support rods 1 by cooperating with the oblique pull rod 3, and the cooperation of the oblique pull rod 3, the connecting rod 4 and the bidirectional screw rod 5 can make the two support rods 1 stable.

[0040] As shown in Figure 2 , the support rod 1 is in an I-shaped structure, which is convenient for stably supporting various structures. The inner side corner of the support rod 1 is provided with a guide groove 11, which is convenient for installing a sliding block and adjusting the up and down movement of the sliding block. The top and bottom of the support rod 1 are provided with a plurality of through holes 12, which are convenient for connecting the support rod 1 with other components.

[0041] As shown in Figure 3As shown, the sliding seat 2 is provided with a guide rod 21 at each corner, and the guide rod 21 is clamped in the guide groove 11. This structure facilitates the sliding connection of the sliding seat 2 and the support rod 1, and facilitates the up and down movement and use of the sliding seat 2. The sliding seat 2 is provided with a pair of ear plates 23 on one side facing the outer side, and the ear plate 23 is provided with a counterbore 24 in the middle. The cooperation of the ear plate 23 and the counterbore 24 facilitates the rotary connection of the sliding seat 2 and the inclined rod 3. The other side of the sliding seat 2 is provided with a top wire 22 for fixing the position of the sliding seat 2.

[0042] As shown in Figure 4 , the inclined rod 3 is provided with an adapter plate 31 at both ends, and the adapter plate 31 is provided with a connecting hole 32 in the middle. The adapter plate 31 and the ear plate 23 are connected by a pin shaft. This structure facilitates the use of the inclined rod 3 in cooperation with the sliding seat 2, and facilitates the installation and fixation of the inclined rod 3.

[0043] As shown in Figure 5 , the connecting rod 4 is provided with an end plate 42 at one end, and the end plate 42 is provided with a plurality of bolt holes 43 at the edge. The cooperation of the end plate 42 and the bolt hole 43 facilitates the fixation of the position of the connecting rod 4 by bolts. The other end of the connecting rod 4 is provided with a threaded groove 41, which is convenient for connecting with the bidirectional screw rod 5.

[0044] As shown in Figure 6 , the bidirectional screw rod 5 is provided with a partition block 51 between the threads in two different directions. The partition block 51 is convenient for separating the threads in different directions, and facilitates the stable use of the bidirectional screw rod 5. The partition block 51 is provided with a rotating handle 52 for rotating the bidirectional screw rod 5. The bidirectional screw rod 5 is connected with the threaded groove 41 by threads.

[0045] As shown in Figure 1 , Figure 4 , and Figure 7 , it also includes a connecting pin 6. The inclined rod 3 is provided with a pin shaft hole 33 in the middle, and the pin shaft holes 33 of the two inclined rods 3 are arranged in alignment. The connecting pin 6 passes through the pin shaft holes 33 of the two inclined rods 3, and the end of the connecting pin 6 is provided with a limiting plate 61. This structure facilitates the rotary connection of the two inclined rods 3, and facilitates the rotation of the other inclined rod 3 when one of the inclined rods 3 rotates. This facilitates the adjustment of the inclination angle of the inclined rod 3 between the two support rods 1.

[0046] Example 3

[0047] As shown in Figure 1As shown, a building steel structure support frame, including support rod 1, support rod 1 is provided with a plurality of, support rod 1 is convenient for supporting the building steel structure. The inside top and bottom of support rod 1 are provided with slide 2, slide 2 can move up and down along support rod 1, a pair of inclined pull rod 3 is arranged between adjacent support rod 1, inclined pull rod 3 is arranged along the diagonal of two adjacent support rod 1, the two ends of inclined pull rod 3 are respectively connected with the corresponding slide 2; slide 2 is matched with inclined pull rod 3, which facilitates the stable up and down movement of inclined pull rod 3, and facilitates the inclination adjustment of inclined pull rod 3 to adjust the distance between the two support rods 1. The top and bottom of the opposite side of the two support rods 1 are provided with connecting rod 4, the two connecting rods 4 are connected by bidirectional screw 5, the cooperation of connecting rod 4 and bidirectional screw 5 is convenient for adjusting the distance between the two support rods 1 by cooperating with inclined pull rod 3, and the cooperation of inclined pull rod 3, connecting rod 4 and bidirectional screw 5 can make the two support rods 1 stable.

[0048] As shown in Figure 2 , support rod 1 is in the shape of an I-beam, support rod 1 is convenient for supporting various structures stably. And the inside corner of support rod 1 is provided with guide groove 11, guide groove 11 is convenient for installing sliding block, which facilitates the up and down movement adjustment of sliding block. The top and bottom of support rod 1 are provided with a plurality of perforations 12, which are convenient for connecting support rod 1 with other components.

[0049] As shown in Figure 3 , the corner of slide 2 is provided with guide rod 21, guide rod 21 is clamped inside guide groove 11, which is convenient for the sliding connection of slide 2 and support rod 1, and facilitates the up and down movement and use of slide 2. One side of the outer side of slide 2 is provided with a pair of ear plates 23, the middle of ear plate 23 is provided with counterbore 24, the cooperation of ear plate 23 and counterbore 24 is convenient for the rotary connection of slide 2 and inclined pull rod 3. The other side of slide 2 is provided with top wire 22 for fixing the position of slide 2.

[0050] As shown in Figure 4 , the two ends of inclined pull rod 3 are provided with adapter plate 31, the middle of adapter plate 31 is provided with connecting hole 32, adapter plate 31 and ear plate 23 are connected by pin shaft, which is convenient for the use of inclined pull rod 3 with slide 2, and facilitates the installation and fixation of inclined pull rod 3.

[0051] As shown in Figure 5 , one end of connecting rod 4 is provided with end plate 42, the edge of end plate 42 is provided with a plurality of bolt holes 43, the cooperation of end plate 42 and bolt hole 43 is convenient for fixing the position of connecting rod 4 by bolt. The other end of connecting rod 4 is provided with threaded groove 41, which is convenient for connecting with bidirectional screw 5.

[0052] As shown in Figure 6As shown, the bidirectional screw 5 is provided with a partition block 51 between the threads in two different directions, which is convenient to separate the threads in different directions and facilitate the stable use of the bidirectional screw 5. The partition block 51 is provided with a rotating handle 52 for rotating the bidirectional screw 5, and the bidirectional screw 5 is threadedly connected with the thread groove 41.

[0053] As shown in Figure 1 , Figure 4 and Figure 7 , it also includes a connecting pin 6, the middle of the diagonal rod 3 is provided with a pin hole 33, the pin holes 33 of the two diagonal rods 3 are aligned, the connecting pin 6 passes through the pin holes 33 of the two diagonal rods 3, and the end of the connecting pin 6 is provided with a limiting plate 61; this structure is convenient for the rotation connection of the two diagonal rods 3, and when one of the diagonal rods 3 rotates, the other diagonal rod 3 will also be driven to rotate, which is convenient for adjusting the inclination angle of the diagonal rod 3 between the two support rods 1.

[0054] As shown in Figure 1 , it also includes a mounting seat 7, the mounting seat 7 is sleeved on the top end and the bottom end of the support rod 1, and the mounting seat 7 and the support rod 1 are connected by bolts; this structure is convenient for the support seat to stably support some steel structures in cooperation with the mounting seat 7.

[0055] As shown in Figure 8 , the bottom end of the mounting seat 7 is provided with a plurality of bottom holes 71, which are convenient for fixing the position of the mounting seat 7 by bolts. The middle of the mounting seat 7 is provided with a sleeve joint 73, which is convenient for the mounting seat 7 to be sleeved on the end of the support rod 1. A plurality of reinforcing plates 72 are arranged between the corners of the sleeve joint 73 and the bottom of the mounting seat 7; a plurality of mounting holes 74 are arranged on the sleeve joint 73, which are convenient for connecting the support rod 1 and the mounting seat 7 by passing the bolts through the sleeve joint 73.

[0056] Working principle: in use, the support rod 1 is connected with the slide seat 2 and the diagonal rod 3 according to the use requirements, then the mounting seat 7 is installed on the top end and the bottom end of the support rod 1, the distance between the two diagonal rods 3 is adjusted according to the distance requirement between the two support rods 1, and the distance between the two support rods 1 is changed by adjusting the inclination angle of the diagonal rod 3; when the distance between the two support rods 1 meets the use requirements, only the position of the slide seat 2 needs to be fixed by tightening the top screw 22, so that the slide seat 2 is stable, thereby achieving the purpose of fixing the diagonal rod 3. At the same time, the connecting rod 4 cooperates with the bidirectional screw 5, which can also assist in adjusting the distance between the two support rods 1 by rotating the bidirectional screw 5, and can also further fix the two support rods 1.

[0057] Compared with the prior art, the application has the advantages that the guide groove 11 is arranged in the support rod 1, the sliding seat 2 can move up and down along the guide groove 11, and the inclined pull rod 3 moves with the sliding seat 2, so that the distance between the two support rods 1 can be adjusted by adjusting the inclination angle of the inclined pull rod 3, facilitating the use of the two support rods 1; meanwhile, the connecting rod 4 and the bidirectional screw rod 5 are arranged, the distance between the two support rods 1 can be further fixed through the connecting rod 4 and the bidirectional screw rod 5, and the distance between the two support rods 1 can also be adjusted.

[0058] The preferred embodiments of the utility model are merely used for limiting the utility model, and for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A steel construction support frame for building, comprising support bars (1), characterized in that, The support rod (1) is provided with a plurality of support rods (1), and the inner side top and bottom of the support rod (1) is provided with a sliding seat (2), the sliding seat (2) can move up and down along the support rod (1), a pair of inclined pull rods (3) are arranged between adjacent support rods (1), the inclined pull rod (3) is arranged along the diagonal of two adjacent support rods (1), and the two ends of the inclined pull rod (3) are rotatably connected with the corresponding sliding seat (2); the opposite side of the two support rods (1) is provided with a connecting rod (4) at the top and bottom, and the two connecting rods (4) are connected by a bidirectional screw rod (5).

2. A steel structural support frame for construction according to claim 1, characterized in that, The support rod (1) is in the shape of an I-shaped structure, and the inner side corner of the support rod (1) is provided with a guide groove (11), and the top and bottom of the support rod (1) are provided with a plurality of perforations (12).

3. A steel structural support frame for construction according to claim 2, characterized in that, The sliding seat (2) is provided with a guide rod (21) at the corner, the guide rod (21) is clamped in the inner side of the guide groove (11), one side of the outer side of the sliding seat (2) is provided with a pair of ear plates (23), the middle of the ear plate (23) is provided with a counterbore (24), and the other side of the sliding seat (2) is provided with a top wire (22) for fixing the position of the sliding seat (2).

4. A steel structural support frame for construction according to claim 3, characterized in that, The two ends of the inclined pull rod (3) are provided with an adapter plate (31), the middle of the adapter plate (31) is provided with a connecting hole (32), and the adapter plate (31) and the ear plate (23) are rotatably connected by a pin shaft.

5. The steel building construction support frame of claim 1 wherein, The connecting rod (4) is provided with an end plate (42) at one end, the edge of the end plate (42) is provided with a plurality of bolt holes (43), and the other end of the connecting rod (4) is provided with a threaded groove (41).

6. The steel building construction support frame of claim 1 wherein, The bidirectional screw rod (5) is provided with a partition block (51) between the threads in two different directions, the partition block (51) is provided with a rotating handle (52), which is used for rotating the bidirectional screw rod (5), and the bidirectional screw rod (5) is threadedly connected with the threaded groove (41).

7. A steel structural support frame for construction according to any one of claims 1 to 6, characterized in that, It also includes a connecting pin (6), the middle of the inclined pull rod (3) is provided with a pin hole (33), the pin holes (33) of the two inclined pull rods (3) are arranged in alignment, the connecting pin (6) penetrates the pin holes (33) of the two inclined pull rods (3), and the end of the connecting pin (6) is provided with a limiting plate (61).

8. A steel structural support frame for construction according to any one of claims 1-6, characterized in that, It also includes a mounting seat (7), the mounting seat (7) is sleeved on the top end and the bottom end of the support rod (1), and the mounting seat (7) and the support rod (1) are connected by bolts.

9. A steel structural support frame for construction according to claim 8, characterized in that, The bottom end of the mounting seat (7) is provided with a plurality of bottom holes (71), and the middle of the mounting seat (7) is provided with a sleeve joint (73), a plurality of reinforcements (72) are arranged between the corner of the sleeve joint (73) and the bottom of the mounting seat (7); a plurality of mounting holes (74) are arranged on the sleeve joint (73).

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