A novel hydraulic control pin

Abstract

This utility model discloses a novel hydraulic control pin, specifically relating to the field of hydraulic control pins. It includes a base, with support blocks symmetrically arranged around the top perimeter of the base. A base pin is fixedly connected to the top of each support block. A top frame is provided on the top of the base, and lifting hydraulic cylinders are symmetrically inserted around the top perimeter of the top frame. This utility model allows one end of the pin to move to the center of a groove, enabling the standard section to move stably up and down when the top frame moves. Because the groove is larger than the pin, the pin can be easily inserted and separated from the groove. Even with slight vertical deviations, the pin can be inserted normally into the groove, preventing errors caused by positional misalignment. This facilitates insertion and connection, improves performance, and the support blocks support the standard section, reducing the space required for adding or removing sections, simplifying operation, and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic control pin technology, and more specifically, to a novel hydraulic control pin. Background Technology

[0002] The tower body of a tower crane is composed of many standard sections connected together. The standard section is a key component of the tower crane. It is a tower section with standard dimensions used to change the height of the tower body and plays a supporting role for the tower crane. The manufacturing accuracy of its height determines the verticality deviation and the accuracy of the outer contour dimensions of the tower crane. Therefore, the manufacturing accuracy of the height of the standard section will affect the jacking operation of the tower crane.

[0003] When using a traditional jacking machine, the overall height needs to be adjusted by adding and lowering sections. The hydraulic pin is pushed into the groove of the original standard section by a servo electric cylinder, and the jacking hydraulic cylinder is activated to raise the standard section to a certain height. The trolley below then places the standard section to be added in the corresponding position, thus realizing the addition and reduction of standard sections.

[0004] However, the lifting and lowering installation methods occupy a lot of space, are complicated to operate, and have low efficiency. In addition, the pin is not compatible with the groove size of the standard section. When adding or removing standard sections, the standard section moves relative to the pin, which can easily cause a positional deviation between the pin and the groove of the standard section during the movement and replacement process. This makes it impossible for the pin to be directly inserted into the groove of the standard section, affecting the performance. Therefore, a new type of hydraulically controlled pin is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a novel hydraulic control pin to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel hydraulic control pin, comprising a base, wherein support blocks are symmetrically arranged around the top of the base, a base pin is fixedly connected to the top of the support blocks, a top frame is provided on the top of the base, and lifting hydraulic cylinders are symmetrically inserted around the top of the top frame, the lower end of the lifting hydraulic cylinders extends into the interior of the top frame and is fixedly connected to a connecting block.

[0007] A supporting base plate is symmetrically fixedly connected to the bottom four sides of the top frame, and a servo electric cylinder is symmetrically fixedly connected to the top four sides of the top frame. The moving end of the servo electric cylinder is connected to a pin, and limit blocks are symmetrically arranged on both sides of the pin. A standard section is arranged in the middle of the top frame.

[0008] In a preferred embodiment, positioning holes are provided around the bottom of the standard section at positions corresponding to the base pins, and fixing pins are fixedly connected around the top of the standard section at positions directly above the standard section.

[0009] In a preferred embodiment, the fixing pin and the base pin are the same, both of which are adapted to the positioning hole, and the top ends of both the fixing pin and the base pin are set as tapered structures.

[0010] In a preferred embodiment, the standard section has grooves around its perimeter corresponding to the pins, and the size of the grooves is larger than the size of the pins.

[0011] In a preferred embodiment, the movable end of the lifting hydraulic cylinder passes through the middle of the support base plate and is fixedly connected to the top wall of the base, and the size of the through hole in the middle of the top frame is adapted to the size of the standard section.

[0012] In a preferred embodiment, the cross-sectional shape of the connecting block is set to "T" shape, and the connecting block is located in the middle of the top frame.

[0013] In a preferred embodiment, the limiting block is fixed to the top of the top frame, and the limiting block and the wall of the pin are in contact.

[0014] In a preferred embodiment, the base has insertion holes on its side, the distance between the insertion holes being adapted to the distance between the forklift insertion rods, and the top of the base is provided with an introduction trolley.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model first moves one end of the pin to the middle of the groove, which can drive the standard section to move stably up and down when the top frame moves up and down. Since the size of the groove is larger than the size of the pin, it is easy to insert the pin into the groove and separate it. When there is a slight deviation in the vertical position, the pin can be inserted normally into the inside of the groove. It will not cause errors due to the positional deviation between the pin and the groove. It is convenient to insert and connect, improves the use effect, and supports the standard section through the support block, reducing the space for adding and lowering sections, making operation and use convenient and improving work efficiency.

[0017] 2. This utility model also improves the stability of multiple standard sections by inserting a fixed pin into the positioning hole, thereby improving the stability and positioning effect of the standard sections, reducing the risk of tilting, improving assembly and disassembly efficiency, and eliminating safety hazards. Furthermore, by inserting the base pin into the positioning hole, newly added standard sections at the bottom can be positioned, making it easy to align the newly added standard sections with the top standard sections for convenient positioning and use.

[0018] 3. This utility model also improves the connection strength between the lifting hydraulic cylinder and the top frame by using a connecting block. When the connecting block moves downward, it can create a movable cavity between the top frame and the lifting hydraulic cylinder, so that a buffer cavity is created when the lifting hydraulic cylinder retracts, thus preventing damage to the top frame. The limiting block limits the pin, improving the stability of the pin's movement and effectively preventing the standard section's lifting stability from being affected by the pin's slippage during movement, thereby eliminating safety hazards.

[0019] In summary, through the interaction of the above-mentioned functions, the pin can be easily inserted into the groove, making it convenient to add or reduce standard sections. It will not cause errors due to positional deviations between the pin and the groove, and will improve the stability of the standard section's movement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a top view structural diagram of the present invention.

[0022] Figure 3 This is a schematic cross-sectional view of the connection between the lifting hydraulic cylinder and the top frame of this utility model.

[0023] Figure 4 This is a schematic diagram of the formal cross-sectional structure of this utility model.

[0024] Figure 5 This utility model Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0025] The attached diagram is labeled as follows: 1. Base; 2. Support block; 3. Base pin; 4. Lifting hydraulic cylinder; 5. Support base plate; 6. Top frame; 7. Connecting block; 8. Servo electric cylinder; 9. Pin; 10. Standard section; 11. Positioning hole; 12. Groove; 13. Fixing pin; 14. Limiting block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] As attached Figure 1-5The novel hydraulic control pin shown includes a base 1. Support blocks 2 are symmetrically arranged around the top of the base 1, supporting a standard section 10 placed on top of the base 1. A base pin 3 is fixedly connected to the top of the support blocks 2, inserting into the center of the positioning hole 11 at the bottom of the standard section 10 to limit its movement and ensure that the standard section 10 corresponds to the standard section 10 at the top, facilitating the addition or removal of standard sections 10 for ease of use. A top frame 6 is provided on the top of the base 1, which raises the distance between multiple lifting hydraulic cylinders 4. The system provides stability and can limit the movement of the standard section 10 in the middle of the top frame 6, improving the lifting stability of the standard section 10. It also allows for quick assembly and disassembly, reducing risks. The top frame 6 is symmetrically equipped with lifting hydraulic cylinders 4 around its top. The lower end of the lifting hydraulic cylinders 4 extends into the interior of the top frame 6 and is fixedly connected to a connecting block 7. By controlling the simultaneous activation of multiple lifting hydraulic cylinders 4, the top frame 6 can be stably raised and lowered through the connecting block 7. This facilitates the control of the up and down movement of the standard section 10 in the middle of the top frame 6, making it easy to add or remove standard sections 10. This makes the system convenient to use, reduces construction risks, and facilitates quick assembly and disassembly.

[0028] A support base plate 5 is symmetrically fixedly connected to the bottom four sides of the top frame 6. The support base plate 5 further supports the top frame 6 and improves the connection strength between the lifting hydraulic cylinder 4 and the top frame 6. A servo electric cylinder 8 is symmetrically fixedly connected to the top four sides of the top frame 6. The moving end of the servo electric cylinder 8 is connected to a pin 9. Activating the servo electric cylinder 8 controls the movement of the pin 9, which facilitates limiting the movement of the standard section 10. Limit blocks 14 are symmetrically arranged on both sides of the pin 9. The standard section 10 is arranged in the middle of the top frame 6. The movement of the pin 9 is limited by the limit blocks 14, which improves the stability of the movement of the pin 9.

[0029] As attached Figure 4 , 5 As shown, positioning holes 11 are provided around the bottom of the standard section 10 at positions corresponding to the base pin 3. Fixing pins 13 are fixedly connected around the top of the standard section 10 at positions directly above it. The positioning holes 11 and fixing pins 13 facilitate the splicing and connection of individual standard sections 10, improve the stability of splicing multiple standard sections 10, enhance the stability and positioning effect of the standard section 10, reduce the risk of tilting, improve the efficiency of assembly and disassembly, and eliminate safety hazards.

[0030] As attached Figure 4 , 5As shown, the fixed pin 13 and the base pin 3 are identical. Both the fixed pin 13 and the base pin 3 are adapted to the positioning hole 11. The top ends of both the fixed pin 13 and the base pin 3 are set with a tapered structure. When multiple standard sections 10 are stacked, the stability of the connection between the multiple standard sections 10 can be improved by inserting the fixed pin 13 into the positioning hole 11. The newly added standard section 10 at the bottom can be positioned by inserting the base pin 3 into the positioning hole 11, making it convenient to align the newly added standard section 10 with the top standard section 10 for easy positioning and use.

[0031] As attached Figure 4 , 5 As shown, the standard section 10 has grooves 12 at positions corresponding to the pin 9 around its perimeter. The size of the grooves 12 is larger than that of the pin 9. When one end of the pin 9 moves to the middle of the groove 12, the standard section 10 can move stably up and down when the top frame 6 moves up and down. Also, since the size of the grooves 12 is larger than that of the pin 9, the pin 9 and the grooves 12 can be easily separated, effectively preventing the pin 9 from sliding and falling off.

[0032] As attached Figure 1 , 3 As shown in Figure 4, the moving end of the lifting hydraulic cylinder 4 passes through the middle of the supporting base plate 5 and is fixedly connected to the top wall of the base 1. The size of the through hole in the middle of the top frame 6 is adapted to the size of the standard section 10. Activating the lifting hydraulic cylinder 4 can control the lifting hydraulic cylinder 4 to drive the connecting block 7 and the supporting base plate 5 to move up and down, thereby lifting the top frame 6, which is convenient for adding or reducing the use of the standard section 10. At the same time, the top frame 6 limits the standard section 10.

[0033] As attached Figure 3 As shown, the cross-sectional shape of the connecting block 7 is set to "T" shape. The connecting block 7 is located in the middle of the top frame 6. The connection strength between the lifting hydraulic cylinder 4 and the top frame 6 can be improved by the connecting block 7. When the connecting block 7 moves downward, it can create a movable cavity between the top frame 6 and the lifting hydraulic cylinder 4, so that a buffer cavity is created when the lifting hydraulic cylinder 4 contracts, thus avoiding damage to the top frame 6.

[0034] As attached Figure 2 As shown, the limiting block 14 is fixed to the top of the top frame 6. The limiting block 14 and the wall of the pin 9 are in contact. The limiting block 14 limits the pin 9, improves the stability of the pin 9 movement, effectively prevents the pin 9 from sliding during the movement, and thus affects the lifting stability of the standard section 10, eliminating safety hazards.

[0035] As attached Figure 1 , 3As shown, the side of the base 1 is provided with a socket, the distance of which is adapted to the distance of the forklift lever. The top of the base 1 is provided with an introduction trolley, which facilitates the movement of the equipment by forklift through the socket and facilitates the removal of the standard section 10 from between the base 1 and the top frame 6, as well as the removal of the standard section 10 into the top of the base 1 for easy use.

[0036] The working principle of this utility model is as follows: When in use, simply move the standard section 10 to the top of the base 1 by introducing the trolley, and align the positioning hole 11 at the bottom of the standard section 10 with the base pin 3 at the top of the support block 2. Then place the standard section 10 on the top of the support block 2. At this time, the base pin 3 will automatically insert into the positioning hole 11 to position the standard section 10.

[0037] Then, the lifting hydraulic cylinder 4 is activated to control the top frame 6 to move down, so that the top frame 6 fits into the middle of the standard section 10 until the pin 9 and the groove 12 are aligned. At this time, the fixing pin 13 at the top of the standard section 10 is inserted into the positioning hole 11 at the bottom of the existing standard section 10, so that the two standard sections 10 are positioned and fitted together.

[0038] Then, the servo electric cylinder 8 is activated to control the movement of the pin 9, so that one end of the pin 9 is inserted into the interior of the groove 12, and the lifting hydraulic cylinder 4 is activated to control the top frame 6 to drive the standard section 10 upward, thus completing the addition of the standard section 10.

[0039] When disassembling standard section 10, the lifting hydraulic cylinder 4 is activated to control the standard section 10 in the middle of the top frame 6 to move downward. When the base pin 3 is inserted into the positioning hole 11 at the bottom of the standard section 10, the lifting hydraulic cylinder 4 is activated to control the top frame 6 to move upward until the pin 9 corresponds to the groove 12 around the upper standard section 10.

[0040] Then, the servo electric cylinder 8 is activated to control the pin 9 to insert into the inside of the groove 12, and the lifting hydraulic cylinder 4 is activated to control the top frame 6 to drive the standard section 10 to separate from the bottom standard section 10, so that the bottom standard section 10 can be removed, making it convenient to add and remove for use.

[0041] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0042] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of hydraulic control latch comprising a base (1), characterized in that: The base (1) has symmetrical support blocks (2) arranged around the top. The support blocks (2) are fixedly connected to the top of the base pin (3). The base (1) has a top frame (6) arranged on the top. The top frame (6) has symmetrical lifting hydraulic cylinders (4) inserted around the top. The lower end of the lifting hydraulic cylinder (4) extends into the interior of the top frame (6) and is fixedly connected to a connecting block (7). The bottom of the top frame (6) is symmetrically fixedly connected with a support base plate (5), and the top of the top frame (6) is symmetrically fixedly connected with a servo electric cylinder (8). The moving end of the servo electric cylinder (8) is connected with a pin (9). Limit blocks (14) are symmetrically arranged on both sides of the pin (9). A standard section (10) is arranged in the middle of the top frame (6).

2. A new type of hydraulic control latch according to claim 1, characterized in that: The bottom perimeter of the standard section (10) is provided with positioning holes (11) corresponding to the base pin (3), and the top perimeter of the standard section (10) is fixedly connected with a fixing pin (13) located directly above the standard section (10).

3. A new type of hydraulic control latch according to claim 2, characterized in that: The fixed pin (13) and the base pin (3) are the same. Both the fixed pin (13) and the base pin (3) are adapted to the positioning hole (11). The top of both the fixed pin (13) and the base pin (3) are set as a tapered structure.

4. A new type of hydraulic control latch according to claim 1, characterized in that: The standard section (10) has grooves (12) around its perimeter corresponding to the pin (9), and the size of the grooves (12) is larger than the size of the pin (9).

5. A new type of hydraulic control latch according to claim 1, characterized in that: The moving end of the lifting hydraulic cylinder (4) passes through the middle of the supporting base plate (5) and is fixedly connected to the top wall of the base (1). The size of the through hole in the middle of the top frame (6) is adapted to the size of the standard section (10).

6. A new type of hydraulic control latch according to claim 1, characterized in that: The cross-sectional shape of the connecting block (7) is set to "T" shape, and the connecting block (7) is located in the middle of the top frame (6).

7. A new type of hydraulic control latch according to claim 1, characterized in that: The limiting block (14) is fixed to the top of the top frame (6), and the limiting block (14) and the wall of the pin (9) are in contact.

8. A novel hydraulic control pin according to claim 1, characterized in that: The base (1) has a socket on its side, the distance between the sockets being adapted to the distance between the forklift rods, and a guide trolley is provided on the top of the base (1).

Images