Reinforcing plate pressing device

Abstract

The utility model discloses a reinforcing plate pressing device which comprises a first arm rod and a second arm rod. The first end of the second arm rod is rotatably arranged on the first arm rod, and the second arm rod is perpendicular to the first arm rod and horizontally rotates along the axis of the first arm rod; the first end of the third arm rod is rotationally arranged at the second end of the second arm rod, and the third arm rod is parallel to the second arm rod and rotates in the horizontal direction; the air cylinder is arranged at the second end of the third arm rod, and a piston rod of the air cylinder is perpendicular to the third arm rod. The second arm rod horizontally rotates along the axis of the first arm rod, and the first end of the third arm rod is horizontally and rotatably arranged at the second end of the second arm rod, so that the air cylinder can horizontally move at any distance in multiple directions above a reinforcing plate at the top of the container, and the air cylinder can conveniently move back and forth at multiple reinforcing points; and the working efficiency and benefits are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to container assembly technical field, in particular to a reinforcing plate pressing device. BACKGROUND

[0002] In the manufacturing process of the container, the assembly of the reinforcing plate and the lintel plate on the top of the container is a crucial process, which is directly related to the stability, durability and safety of the overall structure of the container. The correct assembly and connection of the two components not only effectively enhance the load-bearing capacity of the top of the container, but also improve its physical properties such as compression resistance and shock resistance. Therefore, ensuring the assembly of the reinforcing plate and the lintel plate on the top of the container is an important process, which directly affects the stability and quality of the overall structure. In order to ensure that the reinforcing plate and the lintel plate are tightly fitted and fixed in the appropriate position, point welding operation is usually required.

[0003] In the prior art, the operator uses a hammer as an auxiliary tool to help ensure the close contact of the reinforcing plate and the lintel plate. After positioning the reinforcing plate, the operator presses the reinforcing plate downward with the hammer, then performs point welding fixation, and knocks the point welding position. By applying appropriate downward pressure with the hammer, the operator can press the reinforcing plate tightly against the lintel plate for point welding. However, if the operator operates improperly during the operation, the downward pressure is not enough, and the reinforcing plate and the lintel plate do not match completely, it will cause the reinforcing plate and the lintel plate to not fit tightly, leaving a gap, making the point welding and post-welding process more difficult, and causing quality problems of varying degrees. Meanwhile, the repair work not only affects production efficiency, but also increases repair costs. Moreover, when multiple reinforcement points need to be welded, it is inconvenient to move the heavy tools such as hammers between multiple reinforcement points. SUMMARY

[0004] The technical problem to be solved by the utility model is to solve the problem of moving heavy tools such as hammers between multiple reinforcement points.

[0005] In order to solve the above technical problems, the utility model provides a reinforcing plate pressing device, which comprises: a first arm rod; a second arm rod, the first end of the second arm rod is rotationally arranged on the first arm rod, the second arm rod is perpendicular to the first arm rod, and rotates horizontally along the axis of the first arm rod; a third arm rod, the first end of the third arm rod is rotationally arranged on the second end of the second arm rod, the third arm rod is parallel to the second arm rod, and rotates in the horizontal direction; a gas cylinder, the gas cylinder is arranged on the second end of the third arm rod, and the piston rod of the gas cylinder is perpendicular to the third arm rod.

[0006] Further, it further comprises an arc-shaped handle, the arc-shaped handle is arranged on the side of the gas cylinder, and the center of the arc-shaped handle is located on the axis of the gas cylinder.

[0007] Further, the cylinder top is provided with a first connecting piece, the third arm rod is provided with a plurality of connecting holes, the connecting holes are circularly arranged along the cylinder axis, and the first connecting piece is arranged on the second end of the third arm rod after penetrating the connecting holes.

[0008] Further, the second end of the second arm rod is provided with a second connecting piece, the second connecting piece is internally provided with a mounting cavity, the first end of the third arm rod is inserted into the mounting cavity, and the third arm rod rotates horizontally around the second connecting piece.

[0009] Further, the second connecting piece comprises a shell, a first bearing and a second bearing, the shell is arranged on the second end of the second arm rod, the first bearing and the second bearing are clamped between the shell and the first end of the third arm rod, the mounting cavity is arranged in the shell, the first bearing and the second bearing are arranged in a vertical direction, and the first bearing is located above the second bearing.

[0010] Further, the second connecting piece further comprises a first rotating ring and a second rotating ring, the first rotating ring is arranged between the first bearing and the first end of the third arm rod, and the second rotating ring is arranged between the second bearing and the first end of the third arm rod.

[0011] Further, the second connecting piece further comprises a first annular reinforcing member and a second annular reinforcing member, the first annular reinforcing member and the second annular reinforcing member are arranged in the mounting cavity, the bottom of the first annular reinforcing member abuts against the top of the first bearing, and the top of the second annular reinforcing member abuts against the bottom of the second bearing.

[0012] Further, the first end of the third arm rod is arranged on the top of the first bearing by a nut after penetrating the mounting cavity.

[0013] Further, the first arm rod is a telescopic arm, and the length of the first arm rod can be changed in a vertical direction.

[0014] Further, the first arm rod is provided with a horizontal through hole, and the through hole and the second arm rod are located at two ends of the first arm rod respectively.

[0015] The reinforcing plate pressing device provided by the embodiment of the utility model has the advantages that: the second arm lever rotates horizontally along the axis of the first arm lever, so that the horizontal moving direction of the cylinder on the third arm lever is controlled, the first end of the third arm lever is arranged horizontally on the second end of the second arm lever, so that the distance between the second end of the third arm lever and the first end of the second arm lever is adjusted to control the horizontal moving distance of the cylinder, and the cylinder can move horizontally in multiple directions at any distance in the space above the reinforcing plate on the top of the container, which is convenient for an operator to control the cylinder to move with one hand after positioning the reinforcing plate, and the gas valve switch is started at the same time, the piston rod of the cylinder presses the edge of the reinforcing plate, the other hand simultaneously performs spot welding work, the spot welding fixing work of the reinforcing plate is completed by swinging the cylinder in turn, the operator can move between multiple reinforcing points, and the work efficiency and benefits are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the sectional view of the reinforcing plate pressing device provided by the utility model;

[0017] Figure 2 is the top view of the reinforcing plate pressing device provided by the utility model.

[0018] The correspondence between the reference signs and the component names is as follows:

[0019] 1, first arm lever; 101, through hole; 2, second arm lever; 21, second connecting piece; 211, shell; 212, first bearing; 213, second bearing; 214, first rotating ring; 215, second rotating ring; 216, first annular reinforcing piece; 217, second annular reinforcing piece; 201, mounting cavity; 3, third arm lever; 301, connecting hole; 4, cylinder; 41, piston rod; 42, first connecting piece; 5, arc-shaped handle. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model will be described in further detail below in combination with the drawings and the embodiments. The following embodiments are used to illustrate the utility model, but are not used to limit the scope of the utility model. It should be noted that: the relative arrangement and numerical value of the components and steps described in the embodiments do not limit the scope of the utility model unless otherwise specified.

[0021] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the utility model and its applications or uses.

[0022] The technologies, methods and devices known to those skilled in the relevant art may not be discussed in detail, but should be considered as part of the specification when appropriate.

[0023] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0024] It should be noted that like numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it need not be discussed further in subsequent views.

[0025] As Figures 1 to 2 The utility model discloses a reinforcing plate pressing device, including: first arm lever 1, second arm lever 2, third arm lever 3 and cylinder 4.

[0026] Among them, the first end of second arm lever 2 is rotationally arranged on first arm lever 1, second arm lever 2 is perpendicular to first arm lever 1, and rotates horizontally along the axis of first arm lever 1, the first end of third arm lever 3 is rotationally arranged on the second end of second arm lever 2, third arm lever 3 is parallel to second arm lever 2, and rotates in the horizontal direction, cylinder 4 is arranged on the second end of third arm lever 3, and the piston rod 41 of cylinder 4 is perpendicular to third arm lever 3.

[0027] The reinforcing plate pressing device of the application, by letting second arm lever 2 rotate horizontally along the axis of first arm lever 1, facilitates control of the horizontal movement direction of cylinder 4 on third arm lever 3, by letting the first end of third arm lever 3 rotationally arrange the second end of second arm lever 2, it is convenient to adjust the distance between the second end of third arm lever 3 and the first end of second arm lever 2 to control the horizontal movement distance of cylinder 4, and then make cylinder 4 horizontally move in any distance in multiple directions on the reinforcing plate on the top of the container. After the reinforcing plate is positioned, the operator controls cylinder 4 to move with one hand, and at the same time, the air valve switch is started, the piston rod 41 of cylinder 4 presses down the top reinforcing plate edge, the other hand simultaneously carries out spot welding operation, and the spot welding fixing work of the top reinforcing plate is completed by swinging cylinder 4 in turn, which is convenient for moving between multiple reinforcing points, improves work efficiency and benefit.

[0028] The reinforcing plate pressing device of the application has the characteristics of flexibility, convenience, stability, etc., by increasing the arm lever and cylinder 4 to replace the manual auxiliary tool operation, improves the work efficiency, reduces the cost, guarantees the quality stability, reduces the personnel operation process link, compared with the manual auxiliary tool operation, the speed is faster, and the pressure is more stable, solves the quality instability problem caused by the use of hammer as auxiliary tool and material defects of the staff, and is highly recognized by the customers. At the same time, through actual use comprehensive calculation, compared with manual auxiliary tool operation in the use process of the reinforcing plate pressing device of the application, 4-5 seconds can be saved for each container, the production bottleneck of the post is solved, and the work efficiency and benefit are greatly improved.

[0029] The operation convenience of the reinforcing plate pressing device is improved, the operator can swing the reinforcing plate to the welding point position by holding the device, compared with the original method of using a hammer for assistance, the operation is more flexible, and the reinforcing plate can be positioned to the required position quickly and accurately. The control switch of the air cylinder 4 is fixed above the device, and the control switch moves with the device when the device is moved, and one hand can quickly complete the movement and starting switch conversion operation, greatly improving the convenience and efficiency of operation. By adopting the downward pressing mode of the air cylinder 4, the pressure is stable, compared with the hammer, the pressure is more stable, which helps to ensure that the reinforcing plate is tightly attached between the lintel plate, reduces the insufficient attachment and gap problem caused by unstable pressure, thereby reducing the difficulty of spot welding and subsequent welding process, and improving product quality. On the one hand, due to the more accurate pressure control of the air cylinder 4 on the reinforcing plate, the operation efficiency and benefit are improved, the stable pressure, convenient operation and flexible mobility improve the operation efficiency under the joint action. Reduce quality problems and repair work, reduce cost, thereby increase benefit. At the same time, reduce the risk of safety accidents caused by improper operation, can better protect the safety of the operator, improve the safety, the new device is more safe in the operation process.

[0030] As shown in Figure 1 and Figure 2 In an optional embodiment of the utility model, an arc-shaped handle 5 is arranged on the side surface of the air cylinder 4, and the center of the arc-shaped handle 5 is located on the axis of the air cylinder 4.

[0031] By arranging the arc-shaped handle 5 on the side surface of the air cylinder 4, the operator can control the movement and adjustment of the air cylinder 4 more conveniently and comfortably. Since the center of the arc-shaped handle 5 is aligned with the axis of the air cylinder 4, the operator can achieve more accurate air cylinder 4 operation by holding the arc-shaped handle 5, especially when adjusting the position of the air cylinder 4 or controlling the force, reducing the inconvenience and labor intensity in the traditional operation method. By arranging the arc-shaped handle 5 on the side surface of the air cylinder 4 and aligning with the axis of the air cylinder 4, the operator can maintain a stable holding posture during use, thereby avoiding instability or accidental movement of the device caused by improper operation. The operator can more easily control the movement direction and force of the air cylinder 4, ensuring the accuracy and stability of the pressing device.

[0032] With the introduction of the arc-shaped handle 5, the operator can control the air cylinder 4 in a more natural and ergonomic way, effectively reducing the operation errors caused by hand fatigue or improper posture. At the same time, stable control makes the device safer during operation, avoiding damage or safety accidents that may be caused by improper operation. The arc-shaped handle 5 provides a more flexible control method, and the operator does not need to frequently adjust the holding method, which can more smoothly complete the adjustment and movement of the air cylinder 4, thereby reducing the time required for each operation. Especially when performing welding tasks at multiple reinforcement points, the arc-shaped handle 5 can improve the smoothness and efficiency of operation, further improving the overall efficiency of production operations. The arc-shaped handle 5 allows the air cylinder 4 to be adjusted at different angles and directions, enhancing the flexibility and adaptability of the device. In different working environments or different types of container reinforcement plate pressing, the operator can quickly adjust the position and pressure of the air cylinder 4 according to actual needs, thereby coping with more process requirements and changes.

[0033] As shown in Figure 1 and Figure 2 , in an optional embodiment of the utility model, the top of the cylinder 4 is provided with a first connecting piece 42, and the third arm rod 3 is provided with a plurality of connecting holes 301, which are distributed in a circular array along the axis of the cylinder 4. The first connecting piece 42 is arranged on the second end of the third arm rod 3 after passing through the connecting holes 301.

[0034] By setting the first connecting piece 42 on the top of the cylinder 4 and connecting it through the plurality of connecting holes 301 on the third arm rod 3, a more stable connection structure is formed, enhancing the bonding force between the cylinder 4 and the third arm rod 3, preventing the connection from loosening or becoming unstable due to the movement of the cylinder 4 or external forces, thereby improving the overall stability of the device. The plurality of connecting holes 301 are distributed in a circular array along the axis of the cylinder 4, which helps to evenly distribute the force applied to the third arm rod 3 during connection, avoiding excessive local stress, effectively dispersing the working load, improving the carrying capacity of the system, and prolonging the service life of the device. The plurality of connecting holes 301 provide multiple adjustment points for the connection between the cylinder 4 and the third arm rod 3, allowing the operator to adjust the connection position and change the force application point according to actual needs. This adjustability increases the adaptability of the device, which can meet different working needs and process requirements.

[0035] By distributing the connecting holes 301 in a circular array along the axis of cylinder 4, the connection between the connector and the third arm 3 becomes more precise and uniform. This ensures smoother and more coordinated movement of cylinder 4 and the third arm 3 during operation, improving the accuracy of the clamping device and ensuring the consistency and reliability of the reinforcing plate clamping effect. Through reasonable mechanical design, the connection between the connector and the third arm 3 effectively resists friction, vibration, and impact that may occur during operation, thereby enhancing the durability and fatigue resistance of the device. Over time, the stability and reliability of the device are further guaranteed, reducing the frequency of maintenance and repair.

[0036] like Figure 1 As shown, in an optional embodiment of the utility model, the second end of the second arm 2 is provided with a second connector 21, the second connector 21 is provided with a mounting cavity 201, the first end of the third arm 3 is inserted into the mounting cavity 201, and the third arm 3 rotates horizontally around the second connector 21.

[0037] By providing a mounting cavity 201 within the second connector 21 and inserting the first end of the third arm 3 into the mounting cavity 201, the third arm 3 can rotate horizontally around the second connector 21, thus providing greater flexibility and allowing adjustment of the position or angle of the third arm 3 under different working conditions to meet various operational needs. Inserting the third arm 3 into the mounting cavity 201 of the second connector 21 and allowing it to rotate horizontally simplifies the mechanical structure of the device and reduces additional complex components. This not only reduces the overall manufacturing difficulty but also the weight of the device, lowering production costs. Because the third arm 3 can rotate horizontally around the second connector 21, the device can transmit force more smoothly during operation, avoiding vibration and instability problems caused by rigid connections. This improves the accuracy and stability of the device, ensuring more reliable clamping operation of the reinforcing plate.

[0038] The rotation of the second connector 21 and the third arm 3 allows for complex movements within a limited space, improving space utilization and making the device more compact and suitable for smaller working environments, thus enhancing its adaptability. The mounting cavity 201 ensures smoother contact between the third arm 3 and the second connector 21, reducing friction and wear. This effectively extends the device's lifespan, reduces maintenance and repair frequency, and improves system durability. Allowing the third arm 3 to rotate horizontally on the second connector 21 enables the reinforcing plate clamping device to adjust its working angle or operating position more quickly, improving work efficiency. Operators can make adjustments more quickly and conveniently, improving production line automation and operational efficiency.

[0039] like Figure 1As shown, in an optional embodiment of the utility model, the second connecting member 21 includes a housing 211, a first bearing 212 and a second bearing 213. The housing 211 is disposed on the second end of the second arm 2. The first bearing 212 and the second bearing 213 are both sandwiched between the housing 211 and the first end of the third arm 3. The mounting cavity 201 is disposed in the housing 211. The first bearing 212 and the second bearing 213 are spaced apart in the vertical direction, and the first bearing 212 is located above the second bearing 213.

[0040] By using a first bearing 212 and a second bearing 213 in the second connector 21, and arranging them vertically at intervals, the load borne by the third arm 3 can be effectively distributed. The bearing arrangement reduces friction and wear, improves transmission efficiency, thereby enhancing the overall load-bearing capacity of the device and extending its service life. By clamping the first bearing 212 and the second bearing 213 between the housing 211 and the third arm 3, the third arm 3 can be ensured to rotate more smoothly in horizontal rotation. The bearings help reduce resistance caused by friction, making the rotation of the third arm 3 smoother, avoiding the jamming phenomenon that may occur in traditional structures, and improving the stability of the device operation. The vertically spaced arrangement of the bearings effectively utilizes space, making the entire connector structure more compact. The vertical arrangement of the bearings not only saves space but also makes the overall structure of the reinforcing plate clamping device more rational, enabling relatively complex rotation and adjustment functions within a limited space.

[0041] By employing a bearing structure, direct friction between components is significantly reduced, wear caused by friction is minimized, and the durability of the device is enhanced. In particular, the spacing between the first bearing 212 and the second bearing 213 effectively avoids excessive load concentration, further improving the long-term stability and durability of the device. The bearing arrangement not only reduces friction but also provides excellent vibration and impact resistance. The spacing between the first bearing 212 and the second bearing 213 helps to disperse external vibrations, reducing the impact force transmitted to the device, thereby improving the device's vibration resistance and preventing damage or accuracy degradation caused by vibration. Because the bearings provide efficient friction reduction and stable support, the maintenance requirements of the device are greatly reduced. If damage occurs, simply replacing the bearing restores normal operation of the device, simplifying subsequent maintenance work and reducing maintenance costs and time.

[0042] like Figure 1 As shown, in an optional embodiment of the utility model, the second connecting member 21 further includes a first rotating ring 214 and a second rotating ring 215. The first rotating ring 214 is disposed between the first bearing 212 and the first end of the third arm 3, and the second rotating ring 215 is disposed between the second bearing 213 and the first end of the third arm 3.

[0043] The first rotating ring 214 and the second rotating ring 215 are arranged between the bearing and the arm rod, which can effectively disperse the stress and load in the rotating process and reduce the local stress concentration phenomenon, thereby enhancing the structural stability of the device and helping to improve the long-term operation stability of the device under high load and complex working conditions, avoiding possible structural deformation or jamming problems. The arrangement of the rotating ring can further reduce direct friction, and the surface of the rotating ring is usually made of wear-resistant material, which can effectively improve the anti-wear ability of the device. Compared with traditional devices, the friction coefficient is greatly reduced, thereby reducing the wear of parts caused by friction and prolonging the service life of the device.

[0044] The rotating ring can improve the rotating precision of the third arm rod 3. The rotating ring provides more precise guidance between the bearing and the arm rod, making the entire rotating system more stable and accurate, ensuring that the device can operate stably in a high-precision working environment and meet strict operation requirements. The first rotating ring 214 and the second rotating ring 215 work together with the bearing to effectively disperse the load. Not only does it reduce the pressure on a single bearing, but it also optimizes load distribution, avoids local overload problems, and improves the reliability and durability of the device under long-term high-intensity work. The arrangement of the rotating ring can effectively absorb and disperse external vibrations, reducing the transmission of vibrations to the bearing and the arm rod, enhancing the anti-vibration performance of the device, reducing damage or precision deviation caused by vibrations, and ensuring that the device can still work normally in a high-vibration environment. The use of the rotating ring reduces the frequency of component damage caused by friction and wear, reducing the frequency of maintenance. If the rotating ring is damaged, only the rotating ring needs to be replaced, not the entire structure, greatly simplifying the later maintenance and repair work and reducing operation and maintenance costs.

[0045] As shown in Figure 1 and Figure 1 In an optional embodiment of the utility model, the second connecting piece 21 further comprises a first annular reinforcing member 216 and a second annular reinforcing member 217, both of which are arranged in the mounting cavity 201. The bottom of the first annular reinforcing member 216 abuts against the top of the first bearing 212, and the top of the second annular reinforcing member 217 abuts against the bottom of the second bearing 213.

[0046] By setting the first and second annular reinforcing members 216 and 217, the overall structural stability of the device is enhanced, and deformation or damage caused by uneven bearing stress is prevented. The setting of the reinforcing members at the bearing part can more evenly distribute the pressure, improve the carrying capacity, and adapt to higher strength working environment. The addition of reinforcing members effectively reduces the impact of friction and vibration on the bearing, thereby improving the smoothness and durability of the device. Due to the protective effect of the reinforcing members, the service life of the bearing and other components is extended, the frequency of wear and damage is reduced, and the maintenance cost is reduced.

[0047] As shown in Figure 2 and Figure 1 In an optional embodiment of the utility model, the first end of the third arm lever 3 is arranged on the top of the first bearing 212 through a nut after passing through the mounting cavity 201. The third arm lever 3 is fixed on the top of the first bearing 212 through a nut, which improves the stability of the connection part and avoids loosening or deviation caused by vibration or external force. The nut fixing mode simplifies the installation operation and improves the assembly efficiency and convenience of the device. The nut fixing can ensure the close contact between the third arm lever 3 and the bearing, enhance the carrying capacity, and improve the working strength and reliability of the device.

[0048] In an optional embodiment of the utility model, the first arm lever 1 is a telescopic arm, and the length of the first arm lever 1 can change in the vertical direction. By using a telescopic arm as the first arm lever 1, the telescopic property of the first arm lever 1 allows the device to adjust the length according to actual needs, adapt to different working environments or workpiece sizes, and improve the applicability of the device. By adjusting the length of the arm lever, different working heights or pressure requirements can be more conveniently met, enhancing the overall adaptability of the device and meeting the working conditions of containers of different heights. The telescopic arm can adjust the size as needed, saving space and facilitating operation in limited working areas. Adjusting the length of the arm lever according to specific working conditions helps to improve work efficiency and reduce unnecessary adjustment time and manual operation. The height lever that can be flexibly adjusted can accurately control the applied pressure, ensuring the stability and reliability of the device during operation.

[0049] As shown in Figure 2 Figure 1As shown, in an optional embodiment of the utility model, the first arm rod 1 is provided with a horizontal through hole 101, and the through hole 101 and the second arm rod 2 are located at two ends of the first arm rod 1 respectively. By utilizing the horizontal through hole 101 provided on the first arm rod 1, the first arm rod 1 is horizontally moved along the rod frame provided at the through hole 101, and the movement range of the cylinder 4 is further enhanced. The flexibility and adaptability of the device are improved. The horizontal movement makes the device more accurately adjust the working position, improves the operation efficiency and precision. At the same time, the horizontal movement on the rod frame makes the device more flexible in different working environments, can adapt to more application requirements, can effectively utilize the space, reduces the working area occupied by the device, improves the space utilization rate. The cooperation of the rod frame and the through hole 101 of the first arm rod helps to stabilize the movement track of the cylinder 4, avoids deviation, and enhances the stability and reliability of the device.

[0050] The above description is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and replacements can be made without departing from the technical principles of the utility model, and these improvements and replacements should also be regarded as the protection range of the utility model.

Claims

1. A stiffening plate hold-down device, characterized in that The utility model relates to a kind of arm mechanism, including: First arm rod; Second arm rod, the first end of the second arm rod is rotatably arranged on the first arm rod, the second arm rod is perpendicular to the first arm rod, and is horizontally rotatable along the axis of the first arm rod; Third arm rod, the first end of the third arm rod is rotatably arranged on the second end of the second arm rod, the third arm rod is parallel to the second arm rod, and is rotatable in horizontal direction; Cylinder, the piston rod of the cylinder is arranged on the second end of the third arm rod, and the piston rod of the cylinder is perpendicular to the third arm rod.

2. The reinforcement sheet compacting device according to claim 1, characterized by Further including arc-shaped handle, the arc-shaped handle is arranged on the side of the cylinder, and the center of the arc-shaped handle is located on the axis of the cylinder.

3. The reinforcement sheet compacting device according to claim 1, characterized by The first connecting piece is provided on the top of the cylinder, the third arm rod is provided with a plurality of connecting holes, and the plurality of connecting holes are circularly arranged along the axis of the cylinder.

4. The reinforcement sheet compacting device according to claim 1, characterized by The second end of the second arm rod is provided with a second connecting piece, the second connecting piece is provided with a mounting cavity, the first end of the third arm rod is inserted into the mounting cavity, and the third arm rod rotates horizontally around the second connecting piece.

5. The reinforcement sheet compacting device according to claim 4, characterized by The second connecting piece includes a housing, a first bearing and a second bearing, the housing is arranged on the second end of the second arm rod, the first bearing and the second bearing are clamped between the housing and the first end of the third arm rod, the mounting cavity is arranged in the housing, the first bearing and the second bearing are arranged in vertical direction, and the first bearing is located above the second bearing.

6. The reinforcement sheet compacting device according to claim 5, wherein The second connecting piece further includes a first rotating ring and a second rotating ring, the first rotating ring is arranged between the first bearing and the first end of the third arm rod, and the second rotating ring is arranged between the second bearing and the first end of the third arm rod.

7. The reinforcement sheet compacting device according to claim 5, wherein The second connecting piece further includes a first annular reinforcing member and a second annular reinforcing member, the first annular reinforcing member and the second annular reinforcing member are arranged in the mounting cavity, the bottom of the first annular reinforcing member abuts against the top of the first bearing, and the top of the second annular reinforcing member abuts against the bottom of the second bearing.

8. The reinforcement sheet compacting device according to claim 5, wherein The first end of the third arm rod is arranged on the top of the first bearing by a nut after passing through the mounting cavity.

9. The reinforcement sheet compacting device according to claim 1, wherein The first arm rod is a telescopic arm, and the length of the first arm rod can be changed in vertical direction.

10. The reinforcement sheet compacting device according to claim 1, wherein The first arm rod is provided with a horizontal through hole, and the through hole and the second arm rod are respectively located at two ends of the first arm rod.

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