Hydraulic cylinder quick-mounting device and tower crane

Abstract

The utility model discloses a hydraulic cylinder quick-mounting device and tower crane, hydraulic cylinder quick-mounting device includes quick-mounting mounting seat and locking component, quick-mounting mounting seat is fixed and includes two mounting vertical plates that are spaced apart from each other, and a mounting space for the first rod end of hydraulic cylinder to extend into is formed between the two mounting vertical plates. The locking assembly comprises a connecting pin shaft, a first plug pin piece and two locking plates, the connecting pin shaft penetrates through the arc-shaped notches of the two mounting vertical plates and the first rod ends, and the two locking plates are arranged on the outer sides of the two mounting vertical plates respectively and detachably arranged on the corresponding mounting vertical plates through connecting pieces. And a shaft passing space allowing the connecting pin shaft to penetrate through is formed in the locking plate, the inner wall of the shaft passing space can surround the connecting pin shaft in the arc-shaped notch, the first plug pin piece is inserted into the end, stretching out of the locking plate, of the connecting pin shaft, the assembly difficulty is lowered, and the installation efficiency of the hydraulic cylinder is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tower cranes, and in particular relates to a hydraulic cylinder quick-assembly device and a tower crane. Background Art

[0002] The boom of a tower crane includes a balance arm, a lifting arm and an oil cylinder. The balance arm and the lifting arm are movably hinged. The two ends of the oil cylinder are connected to the balance arm and the lifting arm respectively. The pitch angle of the balance arm can be controlled by the extension and contraction of the oil cylinder. In the prior art, the oil cylinder is connected to the balance arm and the lifting arm by a pin shaft. The balance arm and the lifting arm are each provided with a mounting ear seat. A through hole for the pin shaft to pass through is formed on the mounting ear seat. When installing, the connecting hole at the end of the oil cylinder needs to be aligned with the corresponding mounting ear seat and then the pin shaft is inserted to complete the assembly. Due to the large size of the boom, it is difficult to completely align the connecting hole of the oil cylinder with the through hole of the mounting ear seat. When inserting the pin shaft, the pin shaft needs to be repeatedly knocked, and the assembly work is time-consuming and laborious. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings, the utility model provides a hydraulic cylinder quick-assembly device and a tower crane, aiming to solve the technical problems that the existing cylinder installation structure is inconvenient to assemble and the cylinder installation process is time-consuming and labor-intensive.

[0004] To achieve the above-mentioned purpose, the utility model provides a hydraulic cylinder quick-install device, wherein the hydraulic cylinder quick-install device includes a quick-install mounting seat and a locking assembly, the quick-install mounting seat is fixedly arranged and includes two mounting vertical plates arranged relatively spaced apart, an installation space for the first rod end of the hydraulic cylinder to extend into is formed between the two mounting vertical plates, and arc-shaped notches are formed on the two mounting vertical plates, the locking assembly includes a connecting pin, a first latch member and two locking plates, the connecting pin passes through the arc-shaped notches and the first rod end of the two mounting vertical plates, the two locking plates are respectively arranged on the outer sides of the two mounting vertical plates, and are detachably arranged on the corresponding mounting vertical plates through connecting members, an over-axis space for the connecting pin to pass through is formed on the locking plate, the inner wall of the over-axis space can enclose the connecting pin in the arc-shaped notch, and the first latch member is inserted into one end of the connecting pin extending out of the locking plate.

[0005] In an embodiment of the utility model, a positioning structure is provided on the mounting plate, and a first positioning portion and a second positioning portion are respectively formed at both ends of the locking plate. An axial space is opened on the first positioning portion, and the axial space is in the shape of a hole. A first connecting hole corresponding to the positioning structure is opened on the second positioning portion, and the second positioning portion is detachably provided on the corresponding mounting plate through a connecting piece.

[0006] In an embodiment of the utility model, a second connecting hole configured as a positioning structure is formed on the mounting plate, the connecting member can be configured as a positioning pin shaft and is arranged through the first connecting hole and the second connecting hole, and the connecting member extends out of both ends of the two locking plates and is inserted with a second pin member.

[0007] In an embodiment of the utility model, the center of the circle where the outer contour of the first positioning portion is located is concentrically arranged with the center of the through-axis space, and the center of the circle where the outer contour of the second positioning portion is located is concentrically arranged with the center of the first connecting hole.

[0008] In the embodiment of the utility model, a cutting plane is formed on the connecting pin shaft, the cutting plane is extended along the length direction of the connecting pin shaft, and an abutment plane corresponding to the cutting plane is formed on the inner wall of the through-axis space.

[0009] In an embodiment of the utility model, a sleeve is sleeved on the connecting pin shaft, the sleeve is located between the two locking plates, and the sleeve includes an intermediate main body for sleeved by the first rod end, and two abutment parts are respectively arranged at both ends of the intermediate main body, and the abutment parts are used to abut against the inner wall of the arc-shaped notch.

[0010] In the embodiment of the utility model, a limiting ring is arranged on the sleeve, and the limiting ring is clamped between the first rod end and the mounting vertical plate.

[0011] In an embodiment of the utility model, the mounting plate is provided with a first plate portion and a second plate portion in sequence from bottom to top, the first plate portion is provided on the outer side of the first rod end and has an arc-shaped notch, and the second plate portion is provided on the rear side of the first rod end and has a fixing hole for connecting with the locking device.

[0012] In order to achieve the above-mentioned object, the utility model further provides a tower crane, wherein the tower crane comprises the above-mentioned hydraulic cylinder quick-install device, and the quick-install mounting seat is fixedly arranged on the balance arm of the tower crane.

[0013] In the embodiment of the utility model, a positioning mounting seat is arranged on the lifting arm of the tower crane, and the second rod end of the hydraulic cylinder is hinged to the positioning mounting seat.

[0014] Through the above technical solution, the hydraulic cylinder quick-install device provided by the embodiment of the utility model has the following beneficial effects:

[0015] When using the above-mentioned hydraulic cylinder quick-install device, it includes a quick-install mounting seat and a locking assembly. The quick-install mounting seat is fixedly arranged and includes two mounting vertical plates arranged relatively at a distance. An arc-shaped notch is formed on the mounting vertical plates. The locking assembly includes a connecting pin, a first latch and two locking plates. An axis-through space is formed on the locking plate for the connecting pin to pass through. When installing the hydraulic cylinder, the connecting pin is first inserted into the first rod end of the hydraulic cylinder, and then the connecting pin is slid into the arc-shaped notch. In this process, the first rod end of the hydraulic cylinder falls into the installation space formed between the two mounting vertical plates accordingly. Then, the two locking plates are The tightening plates are installed one by one on the outer sides of the two mounting vertical plates, and finally the first latch member in the locking assembly is inserted into the end of the connecting pin extending out of the locking plate. The inner wall of the through-axis space and the inner wall of the arc-shaped notch cooperate to form a closed annular structure to radially limit the connecting pin. At the same time, the first latch member axially limits the connecting pin to prevent the connecting pin from falling out of the arc-shaped notch during the rotation and swinging of the hydraulic cylinder. Compared with the existing hydraulic cylinder mounting structure, the step of aligning the pin holes is omitted, and there is no need to knock the connecting pin, which reduces the difficulty of assembly and improves the assembly efficiency.

[0016] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide an understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of assembling a hydraulic cylinder quick-install device and a hydraulic cylinder according to an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a quick-install mounting base according to an embodiment of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a hydraulic cylinder quick-install device according to an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of a connecting pin shaft according to an embodiment of the utility model;

[0022] Figure 5 It is a partial structural schematic diagram of a tower crane according to an embodiment of the utility model;

[0023] Figure 6 It is a schematic diagram of a hydraulic cylinder according to an embodiment of the utility model.

[0024] Description of Reference Numerals

[0025] 1 Quick-release mount 11 Install vertical plate

[0026] 111 arc-shaped notch 112 first vertical plate portion

[0027] 113 Second vertical plate portion 12 Installation space

[0028] 2 Locking assembly 21 Connecting pin

[0029] 211 cutting plane 22 first latch member

[0030] 23 Locking plate 231 First positioning portion

[0031] 232 second positioning portion 233 straight plate portion

[0032] 24 sleeve 241 intermediate main body

[0033] 242 abutment portion 25 limiting ring

[0034] 26 Connecting piece 27 Second latch piece

[0035] 3 Hydraulic cylinder 31 First rod end

[0036] 32 Second rod end 4 Lifting arm

[0037] 5 Balance arm 6 Positioning mounting seat DETAILED DESCRIPTION

[0038] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0039] The hydraulic cylinder quick-installation device and the tower crane of the present utility model are described below with reference to the accompanying drawings.

[0040] like Figures 1 to 3 As shown, the utility model provides a hydraulic cylinder quick-install device, wherein the hydraulic cylinder quick-install device comprises:

[0041] A quick-install mounting seat 1, which is fixedly arranged and includes two mounting vertical plates 11 arranged at a relative interval, a mounting space 12 for the first rod end 31 of the hydraulic cylinder 3 to extend into is formed between the two mounting vertical plates 11, and an arc-shaped notch 111 is opened on the two mounting vertical plates 11;

[0042] The locking assembly 2 includes a connecting pin 21, a first latch member 22 and two locking plates 23. The connecting pin 21 is set through the arc-shaped notch 111 and the first rod end 31 of the two mounting vertical plates 11. The two locking plates 23 are respectively arranged on the outer sides of the two mounting vertical plates 11 and are detachably arranged on the corresponding mounting vertical plates 11 through the connecting member 26. An axial space for the connecting pin 21 to pass through is formed on the locking plate 23. The inner wall of the axial space can enclose the connecting pin 21 in the arc-shaped notch 111. The first latch member 22 is inserted into one end of the connecting pin 21 extending out of the locking plate 23.

[0043] When using the above-mentioned hydraulic cylinder quick-install device, it includes a quick-install mounting seat 1 and a locking assembly 2. The quick-install mounting seat 1 is fixedly arranged and includes two mounting vertical plates 11 arranged relatively at a distance. An arc-shaped notch 111 is formed on the mounting vertical plate 11. The locking assembly 2 includes a connecting pin shaft 21, a first latch member 22 and two locking plates 23. An axial space for the connecting pin shaft 21 to pass through is formed on the locking plate 23. When installing the hydraulic cylinder 3, the connecting pin shaft 21 is first inserted into the first rod end 31 of the hydraulic cylinder 3, and then the connecting pin shaft 21 is slid into the arc-shaped notch 111. In this process, the first rod end 31 of the hydraulic cylinder 3 falls into the mounting space 12 formed between the two mounting vertical plates 11. Then, the two locking plates 23 are installed one by one on the outer sides of the two mounting vertical plates 11, and finally the first latch member 22 in the locking assembly 2 is inserted into the end of the connecting pin shaft 21 extending out of the locking plate 23. The inner wall of the through-axis space and the inner wall of the arc-shaped notch 111 cooperate to form a closed annular structure to radially limit the connecting pin shaft 21. At the same time, the first latch member 22 limits the connecting pin shaft 21 axially to prevent the connecting pin shaft 21 from falling out of the arc-shaped notch 111 during the rotation and swinging of the hydraulic cylinder 3. Compared with the existing hydraulic cylinder 3 mounting structure, the step of aligning the pin shaft hole is omitted, and there is no need to knock the connecting pin shaft 21, which reduces the difficulty of assembly and improves the assembly efficiency.

[0044] Specifically, the through-axis space can be set as a through hole for the connecting pin shaft 21 to pass through, or can be set as an arc-shaped space. Further, the structure of the connecting pin shaft 21 can be a single through rod, or a through rod and a stopper. If a single through rod is used, both ends of the connecting pin shaft 21 are formed with a latch hole for the first latch member 22 to pass through, and the number of the first latch members 22 is also set to two accordingly; if it is a through rod and a stopper, it is only necessary to set a latch hole at one end of the through rod away from the stopper.

[0045] In the embodiment of the utility model, a positioning structure is provided on the mounting plate 11, and a first positioning portion 231 and a second positioning portion 232 are formed at both ends of the locking plate 23, respectively. An over-axis space is provided on the first positioning portion 231, and the over-axis space is in the shape of a hole, and a first connecting hole corresponding to the positioning structure is provided on the second positioning portion 232, and the second positioning portion 232 is detachably provided on the corresponding mounting plate 11 through a connecting member 26. That is, the locking plate 23 is connected to the connecting pin 21 and the mounting plate 11 by using a shaft-hole matching structure, which can accurately locate the position of the connecting pin 21 on the one hand, and facilitate the staff to quickly assemble, and on the other hand, the hole-shaped over-axis space also limits the movement of the connecting pin 21, and ensures the stability of the installation of the hydraulic cylinder 3.

[0046] In a specific embodiment of the utility model, a second connection hole set as a positioning structure is formed on the mounting plate 11, and the connecting member 26 can be set as a positioning pin and is set through the first connection hole and the second connection hole. The connecting member 26 extends out of the two locking plates 23 and both ends are inserted with second latch members 27. This positioning structure makes it unnecessary to weld other components on the mounting plate 11, which is convenient for processing. During installation, the positioning pin is first inserted into the two mounting plates 11, and then the locking plate 23 is installed. The through-axis space of the first positioning part 231 is aligned with the connecting pin 21 and the first positioning hole of the second positioning part 232 is aligned with the positioning pin one by one. After assembly, the first latch member 22 and the second latch member 27 are respectively inserted, and the assembly is simple and fast.

[0047] In addition, the positioning structure can also be set as a positioning platform protruding from the mounting plate 11, and a pin hole is formed on the positioning platform for the second pin member 27 to pass through. The locking plate 23 is clamped on the positioning platform and then cooperates with the second pin member 27 for limiting.

[0048] Of course, in the present invention, the connection form between the locking plate 23 and the quick-release mounting seat 1 is not limited to a pin connection, and a threaded connection is also possible. The connecting member 26 is configured as a connecting bolt and a nut. The connecting bolt is passed through the two mounting vertical plates 11 and has threaded sections at both ends. Similarly, after the locking plates 23 are assembled accordingly, the nuts are installed to achieve locking and fixing of the locking plates 23.

[0049] In the embodiment of the utility model, the center of the circumference of the outer contour of the first positioning portion 231 is concentric with the center of the through-axis space, and the center of the circumference of the outer contour of the second positioning portion 232 is concentric with the center of the first connecting hole. Specifically, the locking plate 23 also includes a straight plate portion 233 for connecting the first positioning portion 231 and the second positioning portion 232. The width of the straight plate portion 233 is smaller than the outer diameter of any one of the first positioning portion 231 and the second positioning portion 232, and the transition surface from the straight plate portion 233 to the first positioning portion 231 and the second positioning portion 232 is an arc surface. For the locking plate 23, the distance between the inner hole surface and the outer end surface of the first positioning portion 231 and the second positioning portion 232 needs to have sufficient structural strength. Through the above design, the material used for the locking plate 23 is reduced while satisfying the structural strength, and the production cost is reduced. At the same time, the outer contours of the first positioning portion 231 and the second positioning portion 232 are arc surfaces, which can reduce bump damage. The straight plate portion 233 connects the first positioning portion 231 and the second positioning portion 232 , and the transition surface to the first positioning portion 231 and the second positioning portion 232 is an arc surface, which is convenient for the staff to hold and assemble the locking plate 23 while avoiding stress concentration.

[0050] like Figure 4 As shown, in the embodiment of the utility model, a cutting plane 211 is formed on the connecting pin 21, and the cutting plane 211 is extended along the length direction of the connecting pin 21, and an abutting plane section corresponding to the cutting plane 211 is formed on the inner wall of the through-axis space. The purpose of setting the cutting plane 211 is to form a transition angle for clamping, and cooperate with the abutting plane section of the through-axis space to prevent the connecting pin 21 and the sleeve 24 from rotating circumferentially with the pitching movement of the hydraulic cylinder 3, thereby reducing the wear of themselves and the quick-install mounting seat 1.

[0051] Specifically, see Figure 4 , two opposite cutting planes 211 are formed on the connecting pin 21, and two opposite arc surfaces are formed between the two cutting planes 211. Of course, this embodiment is only one structural form of the connecting pin 21 of the utility model. The connecting pin 21 can be set to a single or three or more cutting planes 211, or the connecting pin 21 can be set to a square rod. Accordingly, the shape of the through-axis space is specifically set corresponding to the shape of the connecting pin 21.

[0052] It should be noted that the term “cutting plane 211” is only used to describe the shape of the connecting pin 21, and does not limit the production process of the connecting pin 21. Figure 4 The connecting pin 21 shown is also directly cast into Figure 4 The connecting pins 21 shown are all possible.

[0053] In the embodiment of the utility model, a sleeve 24 is sleeved on the connecting pin 21, and the sleeve 24 is located between the two locking plates 23. The sleeve 24 includes an intermediate main body 241 for the first rod end 31 to be sleeved, and two abutment portions 242 are arranged at both ends of the intermediate main body 241, and the abutment portions 242 are used to abut against the inner wall of the arc-shaped notch 111. The sleeve 24 passes through the first rod end 31, and the load borne by the hydraulic cylinder 3 in the driving state is transmitted to the quick-install mounting seat 1 through the sleeve 24, which has a higher requirement for structural strength, while the connecting pin 21 is only used to play a role of limiting. The two are arranged separately, which can reduce material costs while meeting the structural strength. Specifically, the sleeve 24 and the connecting pin 21 can be arranged separately or in an integrated manner.

[0054] In the embodiment of the utility model, a limit ring 25 is provided on the sleeve 24, and the limit ring 25 is clamped between the first rod end 31 and the mounting plate 11. Specifically, there are two limit rings 25, and the two limit rings 25 are arranged on both sides of the first rod end 31 in a one-to-one correspondence. During the transportation of the crane, the boom 4 and the balance arm 5 are separated and transported separately, while the hydraulic cylinder 3 is mounted on the boom 4 and transported together with the boom 4. In order to reduce the workload of on-site assembly, the connecting pin 21 can be pre-installed in the through hole of the first rod end 31 of the hydraulic cylinder 3. The two limit rings 25 play an axial limiting role on the connecting pin 21 and the sleeve 24, preventing the connecting pin 21 and the sleeve 24 from falling off from the first rod end 31 during transportation.

[0055] In the embodiment of the utility model, the mounting plate is provided with a first plate portion 112 and a second plate portion 113 in sequence from bottom to top, the first plate portion 112 is provided on the outside of the first rod end 31 and has an arc-shaped notch 111, and the second plate portion 113 is provided on the rear side of the first rod end 31 and has a fixing hole for connecting with the locking device. The locking device is connected to the boom 4 of the crane, and when the boom 4 is in the variable-length state, the locking device can lock the boom 4, so that the boom 3 can maintain the variable-length state even if the hydraulic cylinder 3 is in the non-working state.

[0056] In order to achieve the above objectives, the utility model also provides a tower crane, wherein the tower crane includes the above hydraulic cylinder quick-install device. Since the tower crane adopts all the technical solutions of the above embodiments, it has at least the same beneficial effects as mentioned above, which will not be described one by one here.

[0057] In the embodiment of the utility model, the hydraulic cylinder quick-install device is arranged on the balance arm 5 of the tower crane, the lifting arm 4 of the tower crane is provided with a positioning mounting seat 6, and the second rod end 32 of the hydraulic cylinder 3 is hinged on the positioning mounting seat 6.

[0058] Specifically, before the tower crane is transported, the hydraulic cylinder 3 is pre-hinged with the positioning mounting seat 6, and the positioning mounting seat 6 is set as an ordinary ear plate seat (the ear plate seat is provided with a through hole for the pin shaft to pass through), but the positioning mounting seat 6 can also adopt the same structural design as the quick-release mounting seat 1.

[0059] Correspondingly, in the above tower crane, the installation steps of the hydraulic cylinder 3 are:

[0060] (1) Install the connecting pin 21 into the first rod end 31 of the hydraulic cylinder 3, and then hinge the second rod end 32 of the hydraulic cylinder 3 to the positioning mounting seat 6;

[0061] (2) hoisting the boom 4 (which may be the boom root section of the boom 4 or the entire boom 4) by means of a hoisting device, so that the boom 4 is at a certain elevation angle;

[0062] (3) After the upper chord of the boom 4 is hinged to the upper end of the balance arm 5, the boom 4 is slowly leveled so that the first rod end 31 of the hydraulic cylinder 3 together with the connecting pin 21 slides into the quick-install mounting seat 1;

[0063] (4) After the connecting pin 21 falls into the correct position of the arc-shaped notch 111, the locking plate 23 is assembled;

[0064] (5) Insert the first latch member 22 and the second latch member 27 into the corresponding latch holes.

[0065] In the embodiment of the utility model, the arc-shaped notch 111 is arranged toward the boom 4 and tilted upward. Therefore, when the boom 4 is laid flat, the connecting pin 21 first abuts against the front end position of the arc-shaped notch 111. As the boom 4 falls, the connecting pin 21 gradually slides into the arc-shaped notch 111, and the installation process is smooth.

[0066] Specifically, the installation plate 11 is chamfered at positions corresponding to the arc-shaped notches 111 to facilitate the connection pin 21 to abut against the installation plate 11 while also reducing the risk of damage due to bumps.

[0067] In the embodiment of the utility model, a connecting ear plate is provided at the lower end of the cylinder barrel of the hydraulic cylinder 3, wherein a support corresponding to the connecting ear plate is provided on the arm. During transportation, the connecting ear plate and the support can be connected by a connecting piece to fix the hydraulic cylinder 3 and prevent the hydraulic cylinder 3 from being damaged by bumping during transportation.

[0068] In the description of the present invention, it should be understood that the terms "front" and "rear" are defined according to the boom, with the side facing the boom being the front and the side facing the balance arm being the rear; the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0069] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0071] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hydraulic cylinder quick-install device, characterized in that: The hydraulic cylinder quick-install device comprises: A quick-install mounting seat (1), the quick-install mounting seat (1) being fixedly arranged and comprising two mounting vertical plates (11) arranged at a relative interval, a mounting space (12) for a first rod end (31) of a hydraulic cylinder (3) to extend therein is formed between the two mounting vertical plates (11), and an arc-shaped notch (111) is formed on both the mounting vertical plates (11); The locking assembly (2) comprises a connecting pin (21), a first latch member (22) and two locking plates (23); the connecting pin (21) passes through the arc-shaped notches (111) of the two mounting vertical plates (11) and the first rod end (31); the two locking plates (23) are respectively arranged on the outer sides of the two mounting vertical plates (11) and are detachably arranged on the corresponding mounting vertical plates (11) through connecting members (26); an axial space for the connecting pin (21) to pass through is formed on the locking plate (23); the inner wall of the axial space can enclose the connecting pin (21) in the arc-shaped notch (111); the first latch member (22) is inserted into one end of the connecting pin (21) extending out of the locking plate (23).

2. The hydraulic cylinder quick-install device according to claim 1, characterized in that: A positioning structure is provided on the mounting vertical plate (11), and a first positioning portion (231) and a second positioning portion (232) are respectively formed at two ends of the locking plate (23), the first positioning portion (231) is provided with the through-axis space, and the through-axis space is in the shape of a hole, the second positioning portion (232) is provided with a first connecting hole corresponding to the positioning structure, and the second positioning portion (232) is detachably provided on the corresponding mounting vertical plate (11) through the connecting member (26).

3. The hydraulic cylinder quick-install device according to claim 2, characterized in that: The mounting vertical plate (11) is provided with a second connection hole configured as the positioning structure. The connection member (26) can be configured as a positioning pin and is arranged through the first connection hole and the second connection hole. The connection member (26) extends out of both ends of the two locking plates (23) and is provided with a second latch member (27).

4. The hydraulic cylinder quick-install device according to claim 2, characterized in that: The center of the circle where the outer contour of the first positioning portion (231) is located is concentrically arranged with the center of the through-axis space, and the center of the circle where the outer contour of the second positioning portion (232) is located is concentrically arranged with the center of the first connecting hole.

5. The hydraulic cylinder quick-install device according to claim 1, characterized in that: A cutting plane (211) is formed on the connecting pin shaft (21), and the cutting plane (211) is extended along the length direction of the connecting pin shaft (21), and an abutment plane corresponding to the cutting plane (211) is formed on the inner wall of the through-axis space.

6. The hydraulic cylinder quick-install device according to claim 1, characterized in that: A sleeve (24) is sleeved on the connecting pin shaft (21), and the sleeve (24) is located between the two locking plates (23). The sleeve (24) comprises an intermediate main body (241) for sleeved by the first rod end (31), and two abutment portions (242) respectively arranged at two ends of the intermediate main body (241), and the abutment portions (242) are used to abut against the inner wall of the arc-shaped notch (111).

7. The hydraulic cylinder quick-installation device according to claim 6, characterized in that: A limiting ring (25) is provided on the sleeve (24), and the limiting ring (25) is clamped between the first rod end (31) and the mounting vertical plate (11).

8. The hydraulic cylinder quick-installation device according to any one of claims 1 to 7, characterized in that: The mounting vertical plate is provided with a first vertical plate portion (112) and a second vertical plate portion (113) in sequence from bottom to top, the first vertical plate portion (112) being arranged on the outer side of the first rod end (31) and having the arc-shaped notch (111), and the second vertical plate portion (113) being arranged on the rear side of the first rod end (31) and having a fixing hole for connecting with a locking device.

9. A tower crane, characterized in that: The tower crane comprises a hydraulic cylinder quick-install device according to any one of claims 1 to 8, wherein the quick-install mounting seat (1) is fixedly arranged on a balance arm (5) of the tower crane.

10. The tower crane according to claim 9, characterized in that: A positioning mounting seat (6) is provided on the lifting arm (4) of the tower crane, and the second rod end (32) of the hydraulic cylinder (3) is hinged to the positioning mounting seat (6).

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