A stable fixing device for tower crane base

Abstract

The present invention discloses a stable fixing device for a tower crane base, comprising a first side fixing mechanism, a bottom fixing mechanism is arranged in the middle of the first side fixing mechanism, and second side fixing mechanisms are installed on both sides of the first side fixing mechanism located at the bottom fixing mechanism; the first side fixing mechanism comprises a base, and fixing plates are installed at both ends of the top of the base, and guide rail seats are installed on the inner sides of the two fixing plates of the base, and a gap for installing the bottom fixing mechanism is arranged between the guide rail seats and the adjacent fixing plates; first sliding plates are slidably installed at both ends of the top of the two guide rail seats, and a plurality of first fixing rods are detachably installed on the two first sliding plates. According to the present invention, the lower part of the base can be fixed by the bottom fixing mechanism; the four sides of the base can be fixed by the first side fixing mechanism and the second side fixing mechanism, and the fixing effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of tower crane base fixing, in particular to a stable fixing device for a tower crane base. Background Art

[0002] Tower crane is the most common lifting equipment on construction sites. It is also called tower crane. It is a tower crane structure composed of bearing arm, rope, balance arm, slewing tower, turntable and base. Tower crane is usually used to lift and transport raw materials such as steel bars, wood slats, concrete, steel pipes, etc. in construction. Tower crane is one of the indispensable equipment on construction sites. The base of the tower crane is the foundation of the tower crane, and the base of the tower crane will affect the overall stability of the tower crane.

[0003] The windproof fixing mechanism of a building tower crane disclosed in the existing publication number CN108358080B includes a base, a concrete mounting column is cast in the middle of the upper surface of the base, and the concrete mounting column is cast in the middle of the upper surface of the base, so that the tower crane base plate is fixedly installed on the concrete mounting column, and a first pull rod and a second pull rod are arranged on the outer sides of the limiting ring and the base, and the first pull rod and the second pull rod are connected to the side walls around the limiting ring and the base by screw threads, so as to better reinforce the limiting ring, so that the tower crane base plate and the tower crane base have higher stability, and a reinforced top plate is fixedly installed on the inner side wall of the reinforcement ring, so as to facilitate the limiting and fixing of the tower crane base, and an extrusion ring is arranged inside the reinforcement ring, so that the extrusion ring, with the cooperation of the rotating shaft I, the movable rod, the rotating shaft II and the spring, squeezes the tower crane base on the inner side of the extrusion ring, so as to facilitate the limiting and buffering of the tower crane base and increase the stability of the tower crane base.

[0004] Although the fixing device of the tower crane base disclosed in the existing technology can increase the stability of the base to a certain extent, the extremely small shaking of the lower part causes a larger shaking of the upper part, which reduces the comfort of the operator. Therefore, we propose a stable fixing device for the tower crane base. Summary of the invention

[0005] The object of the present invention is to provide a stable fixing device for a tower crane base, so as to solve the problem in the prior art that a very small shaking of the lower part of the fixing device causes a larger shaking of the upper part, thereby reducing the comfort of the operator.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stable fixing device for a tower crane base, comprising a first side fixing mechanism, a bottom fixing mechanism is arranged in the middle of the first side fixing mechanism, and the first side fixing mechanism is located on both sides of the bottom fixing mechanism and is installed with a second side fixing mechanism; the first side fixing mechanism comprises a base, and fixing plates are installed at both ends of the top of the base, and guide rail seats are installed on the inner sides of the two fixing plates of the base, and a gap for installing the bottom fixing mechanism is arranged between the guide rail seats and adjacent fixing plates; first sliding plates are slidably installed at both ends of the top of the two guide rail seats, and a plurality of first fixing rods are detachably installed on the two first sliding plates, and the spacing between adjacent first fixing rods is the same; the fixing plate is installed with a driving cylinder for driving the first sliding plate to reciprocate.

[0007] Preferably, an intermediate plate is installed between the two guide rail seats, a rotating plate is rotatably installed in the middle of the intermediate plate, both ends of the rotating plate are connected to the two first sliding plates through connecting rod assemblies, and the two driving cylinders are connected to one of the first sliding plates.

[0008] Preferably, the first sliding plate and the guide rail seat are slidably connected via a first sliding assembly; both ends of the connecting rod assembly are rotatably connected to the rotating plate and the first sliding plate via a pin shaft.

[0009] Preferably, the connecting rod assembly comprises a connecting rod and a connecting head, and the connecting heads are detachably mounted on both ends of the connecting rod.

[0010] Preferably, the bottom fixing mechanism includes a support seat, a middle limit seat is installed in the middle of the support seat, a limit groove is provided in the middle limit seat, and a drive assembly is installed at one end of the support seat located at the middle limit seat. The drive assembly drives two connecting plates, and both connecting plates are installed with limit plates.

[0011] Preferably, two support blocks are installed on the top of the support seat, a slide bar is installed between the two support blocks, and a slider that cooperates with the slide bar is installed on one end of the connecting plate away from the driving assembly.

[0012] Preferably, the limiting plate is provided with a limiting slot, the limiting slot is a triangular structure, and the angle of the limiting slot is greater than 90°.

[0013] Preferably, the second side fixing mechanism includes a second sliding plate and a screw seat, the second sliding plate is slidably connected to the fixed plate through a second sliding assembly, the screw seat is fixed on the fixed plate, a nut seat is installed at the bottom end of the second sliding plate, an adjusting screw for adjusting the nut seat is installed on the screw seat, and the second sliding plate is detachably installed with multiple second fixing rods.

[0014] Preferably, the second fixing rod is in an inverted Z-shaped structure.

[0015] Preferably, the number of the first fixing rods of the first sliding plate is two more than the number of the corresponding base slots, and the number of the second fixing rods of the second sliding plate is the same as the number of the corresponding base slots;

[0016] It also includes an auxiliary fixing piece, the first fixing rod and the second fixing rod are fixed by the auxiliary fixing piece, the auxiliary fixing piece is provided with a fixing rod slot matched with the first fixing rod, and the auxiliary fixing piece is a flexible structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The lower part of the base can be fixed by the bottom fixing mechanism, mainly the cylindrical structure at the lower part of the base is fixed; the four sides of the base can be fixed by the first side fixing mechanism and the second side fixing mechanism; the four sides of the base can be fixed by the first side fixing mechanism and the second side fixing mechanism, and the fixing effect is better, reducing the problem of large upper shaking caused by bottom shaking.

[0019] 2. A middle limit seat is installed in the middle of the support seat, and a limit slot is provided in the middle limit seat for limiting the bottom of the base; the limit plate is driven by the driving assembly to clamp the lower part of the base; one of the sliding plates can be driven to move by the driving cylinder, so that through the action of the connecting rod assembly, the other sliding plate will also move, thereby clamping the base; the second fixing rod is adjusted to clamp the base by adjusting the position of the second sliding plate, and the shape of the second fixing rod is an inverted Z-shaped structure, which can avoid interference with the structure of the first side fixing mechanism, and does not affect the clamping and fixing function of the upper part;

[0020] 3. The first fixing rod and the second fixing rod are fixed by an auxiliary fixing piece, and the auxiliary fixing pieces can be locked by bolt connection or other locking pieces to further limit and fix the fixing rods, so that the stability between the first fixing rod, the second fixing rod and the base is stronger; the number of first fixing rods of the first sliding plate is two more than the number of corresponding base slots, and the two extra first fixing rods are located on the outside of the base, that is, there will be 4 first fixing rods on the outside of the overall base, and the external first fixing rods can cooperate with the subsequent fixing rod slots; this arrangement further improves the clamping and fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic structural diagram of the first side fixing mechanism and the bottom fixing mechanism of the present invention;

[0024] Figure 3 is a structural schematic diagram of the first side fixing mechanism of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the bottom fixing mechanism of the present invention;

[0026] Figure 5 is a structural schematic diagram of the second side fixing mechanism of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the connecting rod assembly of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the auxiliary fixing member of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the base part of the present invention.

[0030] In the figure: 1. first side fixing mechanism; 2. bottom fixing mechanism; 3. second side fixing mechanism; 101. base; 102. fixing plate; 103. driving cylinder; 104. guide rail seat; 105. first sliding assembly; 106. first sliding plate; 107. first fixing rod; 108. middle plate; 109. rotating plate; 110. connecting rod assembly; 201. supporting seat; 202. supporting block; 203. sliding rod; 204. sliding block; 205. driving assembly; 206. connecting plate; 207. middle limiting seat; 208. limiting plate; 301. second sliding assembly; 302. second sliding plate; 303. second fixing rod; 304. nut seat; 305. screw seat; 306. adjusting screw; 1101. connecting rod; 1102. connecting head; 4. auxiliary fixing piece; 401. fixing rod slot. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0032] Embodiment 1

[0033] See also Figure 1 In an embodiment of the present invention, a stable fixing device for a tower crane base includes a first side fixing mechanism 1, a bottom fixing mechanism 2 is arranged in the middle of the first side fixing mechanism 1, and second side fixing mechanisms 3 are arranged on both sides of the first side fixing mechanism 1 and the bottom fixing mechanism 2; the bottom fixing mechanism 2 can be used to fix the lower part of the base, mainly to fix the cylindrical structure at the lower part of the base; the first side fixing mechanism 1 and the second side fixing mechanism 3 can be used to fix the four sides of the base.

[0034] like Figure 2 and 4 The bottom fixing mechanism 2 includes a support seat 201, a middle limit seat 207 is installed in the middle of the support seat 201, and the middle limit seat 207 has a limit groove for limiting the bottom of the base; the support seat 201 is located at one end of the middle limit seat 207 and a drive assembly 205 (including but not limited to a double-headed cylinder, a screw drive assembly, etc.) is installed, and the drive assembly 205 drives two connecting plates 206, and the two connecting plates 206 are both installed with a limit plate 208; the top of the support seat 201 is installed with Two support blocks 202 are provided with a slide bar 203 between the two support blocks 202; a slider 204 cooperating with the slide bar 203 is provided at one end of the connecting plate 206 away from the driving assembly 205; the slide bar 203 and the slider 204 can play a role of stabilizing and guiding the connecting plate 206; the limiting plate 208 is provided with a limiting slot, which can limit and fix the bottom of the base; the limiting slot is a triangular structure, and the angle of the limiting slot is greater than 90°, and the selection of this angle can better adapt to the shape of the bottom of the base.

[0035] like Figure 2 , 3and 6; the first side fixing mechanism 1 includes a base 101, both ends of the top of the base 101 are installed with fixing plates 102, the base 101 is located on the inner side of the two fixing plates 102 and is installed with guide rail seats 104, and a gap for installing the bottom fixing mechanism 2 is provided between the guide rail seats 104 and the adjacent fixing plates 102; first sliding plates 106 are slidably installed at both ends of the top of the two guide rail seats 104, and the two first sliding plates 106 are detachably installed with a plurality of first fixing rods 107, and the spacing between adjacent first fixing rods 107 is the same; the fixing plate 102 is installed with a driving cylinder 103 for driving the first sliding plate 106 to reciprocate; an intermediate plate 108 is installed between the two guide rail seats 104, and a rotating plate 109 is rotatably installed in the middle of the intermediate plate 108 (the intermediate plate 108 and the rotating plate 109 are connected by a rotating shaft), the The two ends of the rotating plate 109 are respectively connected to the two first sliding plates 106 through the connecting rod assembly 110, and the two driving cylinders 103 are connected to one of the first sliding plates 106. One of the sliding plates 106 can be driven to move by the driving cylinder 103, so that through the action of the connecting rod assembly 110, the two sliding plates 106 will also move, thereby achieving the clamping of the base; the first sliding plate 106 and the guide rail seat 104 are slidingly connected through the first sliding assembly 105 (slider and linear guide); both ends of the connecting rod assembly 110 are rotatably connected to the rotating plate 109 and the first sliding plate 106 through a pin shaft; the connecting rod assembly 110 includes a connecting rod 1101 and a connecting head 1102, and the connecting heads 1102 are detachably installed on both ends of the connecting rod 1101, and the length of the connecting rod 1101 can be replaced as needed to adjust the adjustable range of the first sliding plate 106.

[0036] like Figure 1 , 3and 5; the second side fixing mechanism 3 includes a second sliding plate 302 and a screw seat 305, the second sliding plate 302 is slidably connected to the fixed plate 102 through a second sliding assembly 301 (sliding block and linear guide rail), the screw seat 305 is fixed on the fixed plate 102, a nut seat 304 is installed at the bottom end of the second sliding plate 302, and an adjusting screw 306 for adjusting the nut seat 304 is installed on the screw seat 305, and the second sliding plate 302 is detachably installed with a plurality of second fixing rods 303; the shape of the second fixing rod 303 is an inverted Z-shaped structure, and the inverted Z-shaped The structure can avoid interference with the structure of the first side fixing mechanism 1, and it does not affect the clamping and fixing function of the upper part; the number of the first fixing rods 107 of the first sliding plate 106 is two more than the number of the corresponding base slots, and the two extra first fixing rods 107 are located on the outside of the base, that is, there will be 4 first fixing rods 107 on the outside of the entire base (the external first fixing rods 107 can cooperate with the subsequent fixing rod slots 401), and the number of the second fixing rods 303 of the second sliding plate 302 is the same as the number of the corresponding base slots, so that the second fixing rods 303 are all in the slots of the base.

[0037] like Figure 1 , 3 , 5 and 7; the first fixing rod 107 and the second fixing rod 303 are fixed by an auxiliary fixing member 4, the auxiliary fixing member 4 is provided with a fixing rod slot 401 that cooperates with the first fixing rod 107, and the auxiliary fixing member 4 is a flexible structure. The auxiliary fixing member 4 can select a suitable length according to needs, and the auxiliary fixing members 4 can be locked by bolt connection or other locking members to further limit and fix the fixing rods, so that the stability between the first fixing rod 107, the second fixing rod 303 and the base is stronger.

[0038] The working principle of the present invention is: the bottom fixing mechanism 2 can fix the lower part of the base, mainly the cylindrical structure at the lower part of the base; the first side fixing mechanism 1 and the second side fixing mechanism 3 can fix the four sides of the base;

[0039] A middle limit seat 207 is installed in the middle of the support seat 201, and a limit slot is provided in the middle limit seat 207 for limiting the bottom of the base; the limit plate 208 is driven by the driving assembly 205 to clamp the lower part of the base;

[0040] One of the sliding plates 106 can be driven to move by driving the air cylinder 103, so that through the action of the connecting rod assembly 110, the other sliding plate 106 will also move, thereby achieving the clamping of the base;

[0041] The first fixing rod 107 and the second fixing rod 303 are fixed by an auxiliary fixing member 4, and the auxiliary fixing members 4 can be locked by bolt connection or other locking members to further limit and fix the fixing rods, so that the stability between the first fixing rod 107, the second fixing rod 303 and the base is stronger.

[0042] Embodiment 2

[0043] See also Figure 1 In an embodiment of the present invention, a stable fixing device for a tower crane base includes a first side fixing mechanism 1, a bottom fixing mechanism 2 is arranged in the middle of the first side fixing mechanism 1, and second side fixing mechanisms 3 are arranged on both sides of the first side fixing mechanism 1 and the bottom fixing mechanism 2; the bottom fixing mechanism 2 can be used to fix the lower part of the base, mainly to fix the cylindrical structure at the lower part of the base; the first side fixing mechanism 1 and the second side fixing mechanism 3 can be used to fix the four sides of the base.

[0044] like Figure 2 and 4 The bottom fixing mechanism 2 includes a support seat 201, a middle limit seat 207 is installed in the middle of the support seat 201, and the middle limit seat 207 has a limit groove for limiting the bottom of the base; the support seat 201 is located at one end of the middle limit seat 207 and a drive assembly 205 (including but not limited to a double-headed cylinder, a screw drive assembly, etc.) is installed, and the drive assembly 205 drives two connecting plates 206, and the two connecting plates 206 are both installed with a limit plate 208; the top of the support seat 201 is installed with Two support blocks 202 are provided with a slide bar 203 between the two support blocks 202; a slider 204 cooperating with the slide bar 203 is provided at one end of the connecting plate 206 away from the driving assembly 205; the slide bar 203 and the slider 204 can play a role of stabilizing and guiding the connecting plate 206; the limiting plate 208 is provided with a limiting slot, which can limit and fix the bottom of the base; the limiting slot is a triangular structure, and the angle of the limiting slot is greater than 90°, and the selection of this angle can better adapt to the shape of the bottom of the base.

[0045] like Figure 2 , 3and 6; the first side fixing mechanism 1 includes a base 101, both ends of the top of the base 101 are installed with fixing plates 102, the base 101 is located on the inner side of the two fixing plates 102 and is installed with guide rail seats 104, and a gap for installing the bottom fixing mechanism 2 is provided between the guide rail seats 104 and the adjacent fixing plates 102; first sliding plates 106 are slidably installed at both ends of the top of the two guide rail seats 104, and the two first sliding plates 106 are detachably installed with a plurality of first fixing rods 107, and the spacing between adjacent first fixing rods 107 is the same; the fixing plate 102 is installed with a driving cylinder 103 for driving the first sliding plate 106 to reciprocate; an intermediate plate 108 is installed between the two guide rail seats 104, and a rotating plate 109 is rotatably installed in the middle of the intermediate plate 108 (the intermediate plate 108 and the rotating plate 109 are connected by a rotating shaft), the The two ends of the rotating plate 109 are respectively connected to the two first sliding plates 106 through the connecting rod assembly 110, and the two driving cylinders 103 are connected to one of the first sliding plates 106. One of the sliding plates 106 can be driven to move by the driving cylinder 103, so that through the action of the connecting rod assembly 110, the two sliding plates 106 will also move, thereby achieving the clamping of the base; the first sliding plate 106 and the guide rail seat 104 are slidingly connected through the first sliding assembly 105 (slider and linear guide); both ends of the connecting rod assembly 110 are rotatably connected to the rotating plate 109 and the first sliding plate 106 through a pin shaft; the connecting rod assembly 110 includes a connecting rod 1101 and a connecting head 1102, and the connecting heads 1102 are detachably installed on both ends of the connecting rod 1101, and the length of the connecting rod 1101 can be replaced as needed to adjust the adjustable range of the first sliding plate 106.

[0046] like Figure 1 , 3 and 5; the second side fixing mechanism 3 includes a second sliding plate 302 and a screw seat 305, the second sliding plate 302 is slidably connected to the fixed plate 102 through a second sliding assembly 301 (sliding block and linear guide rail), the screw seat 305 is fixed on the fixed plate 102, a nut seat 304 is installed at the bottom end of the second sliding plate 302, the screw seat 305 is installed with an adjusting screw 306 for adjusting the nut seat 304, and the second sliding plate 302 is detachably installed with a plurality of second fixing rods 30 3; The shape of the second fixing rod 303 is an inverted Z-shaped structure, which can avoid interference with the structure of the first side fixing mechanism 1, and does not affect the clamping and fixing function of the upper part; the number of the first fixing rods 107 of the first sliding plate 106 is two more than the number of the corresponding base slots, and the two more first fixing rods 107 are located on the outside of the base, and the number of the second fixing rods 303 of the second sliding plate 302 is the same as the number of the corresponding base slots, so that the second fixing rods 303 are all in the slots of the base.

[0047] The working principle of the present invention is: the bottom fixing mechanism 2 can fix the lower part of the base, mainly the cylindrical structure at the lower part of the base; the first side fixing mechanism 1 and the second side fixing mechanism 3 can fix the four sides of the base;

[0048] A middle limit seat 207 is installed in the middle of the support seat 201, and a limit slot is provided in the middle limit seat 207 for limiting the bottom of the base; the limit plate 208 is driven by the driving assembly 205 to clamp the lower part of the base;

[0049] One of the sliding plates 106 can be driven to move by driving the air cylinder 103 , and then through the action of the connecting rod assembly 110 , the other sliding plate 106 will also move, thereby achieving the clamping of the base.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stable fixing device for a tower crane base, comprising a first side fixing mechanism (1), characterized in that: A bottom fixing mechanism (2) is arranged in the middle of the first side fixing mechanism (1), and second side fixing mechanisms (3) are installed on both sides of the first side fixing mechanism (1) and the bottom fixing mechanism (2); The first side fixing mechanism (1) comprises a base (101), fixing plates (102) are installed at both ends of the top of the base (101), guide rail seats (104) are installed on the inner sides of the two fixing plates (102) of the base (101), and a gap for installing the bottom fixing mechanism (2) is provided between the guide rail seats (104) and the adjacent fixing plates (102); Both ends of the top of the two guide rail seats (104) are slidably mounted with first sliding plates (106), and the two first sliding plates (106) are detachably mounted with a plurality of first fixing rods (107), and the spacing between adjacent first fixing rods (107) is the same; the fixing plate (102) is mounted with a driving cylinder (103) for driving the first sliding plates (106) to reciprocate; An intermediate plate (108) is installed between the two guide rail seats (104), a rotating plate (109) is rotatably installed in the middle of the intermediate plate (108), two ends of the rotating plate (109) are respectively connected to the two first sliding plates (106) through a connecting rod assembly (110), and the two driving cylinders (103) are connected to one of the first sliding plates (106); The first sliding plate (106) and the guide rail seat (104) are slidably connected via a first sliding assembly (105); both ends of the connecting rod assembly (110) are rotatably connected to the rotating plate (109) and the first sliding plate (106) via a pin shaft; The connecting rod assembly (110) comprises a connecting rod (1101) and a connecting head (1102), and the connecting heads (1102) are detachably mounted on both ends of the connecting rod (1101).

2. A stable fixing device for a tower crane base according to claim 1, characterized in that: The bottom fixing mechanism (2) comprises a support seat (201), a middle limit seat (207) is installed in the middle of the support seat (201), a limit slot is provided in the middle limit seat (207), a driving assembly (205) is installed at one end of the support seat (201) located at the middle limit seat (207), the driving assembly (205) drives two connecting plates (206), and both connecting plates (206) are installed with a limit plate (208).

3. A stable fixing device for a tower crane base according to claim 2, characterized in that: Two support blocks (202) are installed on the top of the support seat (201), a slide bar (203) is installed between the two support blocks (202), and a slider (204) cooperating with the slide bar (203) is installed at one end of the connecting plate (206) away from the driving assembly (205).

4. A stable fixing device for a tower crane base according to claim 2 or 3, characterized in that: The limiting plate (208) is provided with a limiting slot, the limiting slot is a triangular structure, and the angle of the limiting slot is greater than 90°.

5. The stable fixing device for a tower crane base according to claim 1, characterized in that: The second side fixing mechanism (3) comprises a second sliding plate (302) and a screw seat (305); the second sliding plate (302) is slidably connected to the fixed plate (102) via a second sliding assembly (301); the screw seat (305) is fixed on the fixed plate (102); a nut seat (304) is installed at the bottom end of the second sliding plate (302); an adjusting screw (306) for adjusting the nut seat (304) is installed on the screw seat (305); and a plurality of second fixing rods (303) are detachably installed on the second sliding plate (302).

6. A stable fixing device for a tower crane base according to claim 5, characterized in that: The second fixing rod (303) is in an inverted Z-shaped structure.

7. The stable fixing device for a tower crane base according to claim 5, characterized in that: The number of the first fixing rods (107) of the first sliding plate (106) is two more than the number of the corresponding base slots, and the number of the second fixing rods (303) of the second sliding plate (302) is the same as the number of the corresponding base slots; It also includes an auxiliary fixing member (4), the first fixing rod (107) and the second fixing rod (303) are fixed by the auxiliary fixing member (4), the auxiliary fixing member (4) is provided with a fixing rod slot (401) that cooperates with the first fixing rod (107), and the auxiliary fixing member (4) is a flexible structure.

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