A plate compactor reversing control mechanism and a plate compactor

Abstract

The present invention provides a plate compactor reversing control mechanism and a plate compactor. The plate compactor reversing control mechanism includes a reversing handle, a rotating crankshaft, a positioning spring, a linkage crank and a top shell. The reversing handle is connected to the rotating crankshaft, and the rotating crankshaft is connected to the linkage crank. The positioning spring is used to reset the reversing handle. The plate compactor reversing control mechanism of the present invention has higher durability, effectively improves the service life of the plate compactor reversing control mechanism, and reduces production waste caused by frequent replacement of the plate compactor reversing control mechanism. The present invention has a positioning spring. Under the condition that there is no external force affecting the reversing handle, the positioning spring will cause the reversing handle to rotate and remain in a fixed position. The structure enables the plate compactor of the present invention to have a better standby state, reduces the difficulty of operating the plate compactor, and improves the applicable environment of the plate compactor. The present invention conforms to ergonomic design and greatly improves the operator's efficiency in using the plate compactor.

Description

Technical field:

[0001] The present invention relates to the field of handheld engineering machinery manufacturing, and in particular to a plate compactor reversing control mechanism and a plate compactor. Background technology:

[0002] In modern construction, a stable and flat foundation is required. Therefore, in actual construction, flat plate compactors are often used to level the ground. Flat plate compactors are suitable for compacting materials with low cohesive and frictional forces between particles. They need to vibrate continuously to level the ground. Currently, the flat plate compactors used in construction production, by default, will vibrate and displace in a specific direction during operation. This makes it extremely inconvenient to change the direction of the flat plate compactors during actual use, wasting a lot of manpower and material resources. In the prior art, the reversing control mechanisms of flat plate compactors are mainly divided into two categories: one is mechanical reversing, and the other is hydraulic reversing. Mechanical reversing has low steering accuracy, and the reversing control mechanism is large and occupies a large space. In addition, the flat plate compactors are easily damaged after long-term vibration operation. Therefore, the use of hydraulic reversing as a reversing control mechanism for a flat compactor is an important development direction of this industry. In the existing technology, hydraulic reversing has the advantage of high reversing accuracy, but hydraulic reversing requires the use of a gear rack drive, the reversing sensitivity is low, the production cost of the reversing control mechanism is high and it is not durable. The purpose of the present invention is to solve the problem of the poor durability of the existing reversing control mechanism for a flat compactor and to provide a hydraulic reversing control mechanism that is easy to operate, strong and durable, and economical.

[0003] Therefore, there is an urgent need in the art for a plate compactor reversing control mechanism and a plate compactor with better operating effects.

[0004] In view of this, the present invention is proposed. Summary of the invention:

[0005] The object of the present invention is to provide a plate compactor reversing control mechanism with better operating effect, so as to solve the technical problem that the plate compactor reversing control mechanism in the prior art has poor actual use effect.

[0006] Specifically, the present invention provides a plate compactor reversing control mechanism, which includes a reversing handle, a rotating crankshaft, a positioning spring, a linkage crank and a top shell. The reversing handle is connected to the rotating crankshaft, and the rotating crankshaft is connected to the linkage crank. The reversing handle, rotating crankshaft, positioning spring and linkage crank are arranged in the top shell, and the positioning spring is used to reset the reversing handle.

[0007] By adopting the above structure, the reversing control mechanism of the flat plate compactor of the present invention has higher durability, effectively improves the service life of the reversing control mechanism of the flat plate compactor, and reduces production waste caused by frequent replacement of the reversing control mechanism of the flat plate compactor. At the same time, the above structure has a positioning spring. Under the condition that there is no external force affecting the reversing handle, the positioning spring will cause the reversing handle to rotate and remain in a fixed position. The structure enables the flat plate compactor of the present invention to have a better standby state, ensuring that the flat plate compactor is in a fixed working state in the absence of external force, reducing the operating difficulty of the flat plate compactor, and improving the applicable environment of the flat plate compactor.

[0008] Preferably, the reversing handle is connected to the rotating crankshaft through a reversing connection structure.

[0009] Furthermore, the reversing connection structure includes a shock-absorbing block, a spring chamber and a crankshaft sleeve. One end of the shock-absorbing block is connected to the reversing handle, and the other end is connected to the spring chamber. The other end of the spring chamber is connected to the top shell. The crankshaft sleeve is sleeved on the rotating crankshaft and fixedly connected to the top shell.

[0010] Preferably, the reversing handle rotates about the rotating crankshaft. More preferably, the linkage crank is disposed in the middle of the rotating crankshaft body. Preferably, a plurality of positioning springs are provided. More preferably, the plurality of positioning springs are symmetrically disposed on the rotating crankshaft body about the linkage crank as an axis of symmetry. This structure facilitates the sensitivity of the linkage between the reversing operating structure and the linkage structure, improving the operating efficiency of the steering mechanism. Furthermore, the provision of multiple positioning springs ensures that the reversing handle can rebound to a fixed position in a timely manner, effectively improving rebound efficiency.

[0011] Preferably, the positioning spring is a torsion spring. During operation, the reversing handle is pulled to rotate the rotating crankshaft connected thereto. The rotation of the rotating crankshaft causes the torsion spring to change from a natural state to a twisted stress state. After the reversing handle is released, the torsion spring will spontaneously twist from the twisted stress state to a natural state. The twisting of the torsion spring will drive the rotating crankshaft, the shock-absorbing block, and the spring cavity to rotate. The rotation of the shock-absorbing block drives the reversing handle connected thereto to rotate. The torsion spring returns to its natural state, and the reversing handle returns to a fixed position. When the above process is carried out, the linkage structure, the hydraulic transmission structure, and the vibrator reversing structure will produce a corresponding linkage process, thereby realizing automatic positioning of the plate compactor. With the above structure, the reversing control mechanism of the plate compactor will automatically rebound the reversing handle to a fixed position when the reversing external force operating the reversing handle is lost, thereby completing emergency control of the plate compactor, greatly improving the operational safety of the plate compactor, preventing production accidents, and improving construction quality.

[0012] Furthermore, one end of the torsion spring is fixed to the spring chamber, and the other end is fixed to the crankshaft sleeve fixed on the hydraulic box head.

[0013] Preferably, a first limiting rod is provided on the top shell, and the first limiting rod is used to limit the movement range of the linkage crank to prevent abnormal movement of the linkage crank due to excessive pressure.

[0014] Specifically, the present invention also provides a flat plate compactor, which is controlled by the above-mentioned flat plate compactor reversing control mechanism. The flat plate compactor includes a hydraulic mechanism, a power mechanism and a flat plate compactor bottom plate. The reversing control mechanism is connected to the hydraulic mechanism, and the hydraulic mechanism is connected to the power mechanism and the flat plate compactor bottom plate.

[0015] Preferably, the plate compactor further includes a plate compactor guard frame, the reversing control mechanism, hydraulic mechanism and power mechanism are arranged inside the plate compactor guard frame, and the plate compactor guard frame is connected to the reversing control mechanism, hydraulic mechanism and power mechanism, and the plate compactor base plate is arranged at the bottom of the plate compactor guard frame.

[0016] Preferably, the hydraulic mechanism includes a top piston structure, a hydraulic chamber and a terminal piston structure. The top piston structure and the hydraulic chamber are connected, and the hydraulic chamber is connected to the terminal piston structure. The above structure can significantly improve the control effect of the plate compactor and improve the working efficiency of the plate compactor.

[0017] Furthermore, the top piston structure includes a linkage piston rod, a top return spring, a top shell and a top piston chamber, and the top piston chamber is connected to the hydraulic chamber.

[0018] Preferably, the top shell includes a hydraulic tank head, and the hydraulic tank head is provided with an oil filling port, and the oil filling port is used to add hydraulic oil. More preferably, the oil filling port also serves as an exhaust valve to facilitate the removal of excess gas in the top shell.

[0019] Furthermore, one end of the spring chamber is connected to the shock-absorbing block, and the other end is connected to the hydraulic box head. The crankshaft sleeve is sleeved on the rotating crankshaft and fixedly connected to the hydraulic box head.

[0020] Preferably, a second limiting rod is further provided on the top shell, and the second limiting rod is used to limit the movement range of the top piston structure to prevent abnormal movement of the top piston structure due to excessive pressure.

[0021] Preferably, the top piston chamber is composed of a top sealing pin, a top sealing sheath, a top spring seat and a top shell, the top sealing pin is connected to the top sealing sheath, the top return spring is arranged between the top sealing pin and the top spring seat, and one end is connected to the top sealing pin, and the other end is connected to the top spring seat, the top shell is connected to the top sealing sheath and the top spring seat, one end of the top sealing pin is connected to the linkage piston rod, and the other end is connected to the top return spring, the end connected to the linkage piston rod is provided with a top piston rod groove, the top piston rod groove cooperates with the linkage piston rod, further, the linkage piston rod and the top sealing pin are connected via the top piston rod groove. With the above structure, the present invention has a better product design and rationally utilizes the internal structure and space of the product.

[0022] Preferably, the power mechanism includes a vibrator reversing structure, the vibrator reversing structure includes a screw piston rod, a transmission screw and an eccentric vibrator, the eccentric vibrator includes a reversing vibrator and a fixed vibrator, the screw piston rod is connected to the end piston structure and the transmission screw, and the transmission screw is connected to the reversing vibrator.

[0023] Preferably, the terminal piston structure includes a terminal sealing pin and a terminal sealing sheath, the terminal sealing pin and the terminal sealing sheath being connected. More preferably, the terminal sealing pin and the terminal sealing sheath form a terminal piston chamber, which is connected to the hydraulic chamber. Furthermore, the lead screw piston rod is connected to the terminal sealing pin. This structure can effectively improve the sealing performance of the terminal piston structure of the present invention and extend the service life of the product.

[0024] More preferably, the end of the end sealing pin connected to the lead screw piston rod is provided with an end piston rod groove, the end piston rod groove being adapted to engage with the lead screw piston rod. Furthermore, the lead screw piston rod and the end sealing pin are connected via the end piston rod groove. With this structure, the present invention has a better product design and rationally utilizes the internal structure and space of the product.

[0025] Preferably, the top piston chamber, the hydraulic chamber and the end piston chamber are filled with hydraulic oil. By adopting the above method, the service life of the hydraulic chamber can be significantly improved, and the hydraulic chamber is conducive to the transmission of the force, thereby improving the sensitivity of the product.

[0026] Before work begins, the reversing handle, rotating crankshaft, linkage crank, linkage piston rod, top sealing pin, end sealing pin, lead screw piston rod and transmission screw are in a fixed position state. The fixed position state refers to the positions of the reversing handle, rotating crankshaft, linkage crank, linkage piston rod, top sealing pin, end sealing pin, lead screw piston rod and transmission screw when the plate compactor vibrates in situ. The reversing vibrator is in a fixed angle state. The fixed angle state refers to the angle of the reversing vibrator when the plate compactor vibrates in situ.

[0027] When the cam is in operation, the cam is pressed downwards to push the camshaft forward, and the camshaft is rotated to rotate. The camshaft is driven by the linkage crankshaft provided on the crankshaft body to rotate. The linkage crank drives the linkage piston rod connected to it to move radially downwards. The downward radial displacement of the linkage piston rod drives the top sealing pin connected to it to move radially downwards. The downward radial displacement of the top sealing pin reduces the volume of the top piston chamber, and the pressure in the top piston chamber increases, thereby causing the hydraulic oil filled in the top piston chamber to move to the end piston chamber through the hydraulic chamber. The hydraulic oil in the end piston chamber increases, and the pressure in the end piston chamber increases, causing the end sealing pin to be forced to move forward laterally. The forward lateral displacement of the end sealing pin drives the screw piston rod connected to it to move forward laterally. The forward lateral displacement of the screw piston rod drives the transmission screw connected to it to move forward laterally. The forward lateral displacement of the transmission screw drives the reversing vibrator to change its rotation angle forward. The forward change in the rotation angle of the reversing vibrator causes the plate compactor to move forward, and the plate compactor enters the forward state.

[0028] The cam is then released, and the crankshaft is brought back to its original position by the spring, which in turn drives the reversing handle to return to its original position. The crankshaft then drives the reversing handle to return to its original position. The reversing handle then drives the linked crankshaft thereon to move to its original position. The linked crankshaft rotates and drives the linked piston rod connected to it to move to its original position. The linked piston rod drives the top sealing pin connected to it to move to its original position. The top sealing pin moves to its original position, causing the volume of the top piston chamber to return to a fixed volume. The pressure in the top piston chamber decreases, thereby causing the hydraulic oil filled in the end piston chamber to move to the top piston chamber through the hydraulic chamber. The hydraulic oil in the end piston chamber decreases, the pressure in the end piston chamber decreases, and the pressure in the end piston chamber decreases and returns to a fixed volume, causing the end sealing pin to return to its original position. The end sealing pin drives the lead screw piston rod connected to it to return to its original position. The lead screw piston rod drives the transmission lead screw connected to it to return to its original position. The transmission lead screw drives the reversing vibrator to rotate to a fixed angle. When the reversing vibrator returns to the fixed angle, the plate compactor becomes an in-situ vibration state.

[0029] The cam is then pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled back to move the piston rod in a direction of rotation and the cam is pulled

[0030] Specifically, the present invention also provides a plate compactor control method using the above-mentioned plate compactor reversing control mechanism, the plate compactor control method provides three working states, the three working states including a forward state, an in-situ state and a backward state, the forward state is achieved by pushing the reversing handle forward to move the reversing handle out of the fixed position and forward, the in-situ state is achieved by keeping the reversing handle in a fixed position, and the backward state is achieved by pulling the reversing handle backward to move the reversing handle out of the fixed position and backward, the plate compactor control method also provides a positioning state, that is, through the automatic rebound of the positioning spring, the reversing handle that is free from the external force is rebounded to the fixed position, so that the plate compactor enters the in-situ state.

[0031] By adopting the above convenience, the plate compactor control method conforms to the ergonomic design, greatly improves the operator's efficiency in using the plate compactor, and makes the plate compactor using the plate compactor control method have better control effect. Furthermore, the plate compactor control method also has a positioning state, which is convenient for the operator to adjust the working state of the plate compactor in time according to different working environments, effectively improving the working efficiency of the plate compactor using the plate compactor control method. At the same time, the above-mentioned positioning state also greatly reduces the traction required for the steering of the plate compactor, facilitates the flexible steering of the plate compactor in complex working environments, and improves the universality of the plate compactor to the working environment. In addition, the fixed state of the control method is the in-situ state. After the plate compactor is started, it only vibrates in the in-situ state to prevent the plate compactor from automatically entering the forward state after being turned on in the existing technology, causing inconvenience in operation.

[0032] When working, the power mechanism is turned on and the reversing handle is pushed forward, and the flat plate compactor is adjusted to enter the forward state through the reversing control mechanism. After the force applied to the reversing handle is withdrawn, the reversing handle rebounds under the action of the positioning spring, and the flat plate compactor is adjusted to enter the original state through the reversing control mechanism. The reversing handle is pulled backward, and the flat plate compactor is adjusted to enter the backward state through the reversing control mechanism. After the force applied to the reversing handle is withdrawn again, the reversing handle rebounds under the action of the positioning spring, and the flat plate compactor is adjusted to enter the original state through the reversing control mechanism. The power mechanism is turned off and the flat plate compactor stops working.

[0033] In summary, the present invention has the following beneficial effects:

[0034] 1. The plate compactor reversing control mechanism of the present invention has higher durability, effectively extending the service life of the plate compactor reversing control mechanism and reducing production waste caused by frequent replacement of the plate compactor reversing control mechanism;

[0035] 2. The present invention has a positioning spring. When there is no external force affecting the reversing handle, the positioning spring will fix the reversing handle and maintain it in a fixed position. This structure enables the plate compactor of the present invention to have an improved standby state, ensuring that the plate compactor is in a fixed working state when there is no external force, reducing the difficulty of operating the plate compactor and improving the applicable environment of the plate compactor.

[0036] 3. When the reversing external force operating the reversing handle is lost, the present invention will automatically rebound the reversing handle to a fixed position, thereby completing emergency control of the plate compactor, greatly improving the operational safety of the plate compactor, preventing production accidents, and improving construction quality;

[0037] 4. The fixed working state of the present invention is the in-situ state. After the plate compactor is started, it only vibrates in the in-situ state, which prevents the situation in the prior art where the plate compactor automatically enters the forward state after being turned on, causing operational inconvenience.

[0038] 5. The present invention conforms to the design of ergonomics, greatly improves the efficiency of the operator's use of the plate compactor, and enables the plate compactor using the plate compactor control method to have a better control effect, making it convenient for the operator to adjust the working state of the plate compactor in time according to different working environments, effectively improving the working efficiency of the plate compactor using the plate compactor control method. At the same time, the above-mentioned positioning state also greatly reduces the traction required for the plate compactor to turn, facilitates the flexible reversing of the plate compactor in a complex working environment, and improves the universality of the plate compactor to the working environment. Description of the drawings:

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 This is a three-dimensional diagram of a plate compactor reversing control mechanism of the present invention;

[0041] Figure 2 A cross-sectional view of a plate compactor reversing control mechanism according to the present invention from a first perspective;

[0042] Figure 3 A cross-sectional view of a reversing control mechanism of a plate compactor according to the present invention from a second perspective;

[0043] Figure 4 This is a cross-sectional view of a reversing control mechanism of a plate compactor according to the present invention from a third perspective;

[0044] Figure 5 A three-dimensional diagram of a plate compactor according to the present invention;

[0045] Description of reference numerals:

[0046] Through the above description of the accompanying drawings, combined with the embodiments of the present invention, the technical solutions of the present invention can be more clearly understood and explained.

[0047] 11. Reversing handle; 12. Rotating crankshaft; 13. Positioning spring; 141. Shock absorber; 142. Spring chamber; 143. Crankshaft sleeve; 144. Hydraulic box head; 21. Linking crank; 22. Linking piston rod; 3. Top piston structure; 31. Top sealing pin; 311. Top piston rod groove; 32. Top sealing sheath; 33. Top return spring; 34. Top spring seat; 35. Top housing; 351. Oil filling port; 352. First limit rod; 353. Second limit rod; 36. Top piston chamber; 4. Hydraulic chamber; 5. End piston structure; 51. End sealing pin; 511. End piston rod groove; 52. End sealing sheath; 53. End piston chamber; 61. Screw piston rod; 62. Transmission screw; 63. Eccentric vibrator. Specific implementation method:

[0048] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent like or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0049] The terms used in this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The singular forms "a," "the," and "the" used in this invention and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0050] The present invention will be described in detail below through examples.

[0051] like Figure 1-Figure 4 As shown, the present invention provides a plate compactor reversing control mechanism, which includes a reversing handle 11, a rotating crankshaft 12, a positioning spring 13, a linkage crank 21 and a top shell 35. The reversing handle 11 is connected to the rotating crankshaft 12, and the rotating crankshaft 12 is connected to the linkage crank 21. The reversing handle 11, the rotating crankshaft 12, the positioning spring 13 and the linkage crank 21 are arranged in the top shell 35, and the positioning spring 13 is used to reset the reversing handle 11.

[0052] By adopting the above structure, the reversing control mechanism of the flat plate compactor of the present invention has higher durability, effectively improves the service life of the reversing control mechanism of the flat plate compactor, and reduces production waste caused by frequent replacement of the reversing control mechanism of the flat plate compactor. At the same time, the above structure has a positioning spring 13. Under the condition that there is no external force affecting the reversing handle 11, the positioning spring 13 will make the reversing handle 11 fixedly rotate and maintain it in a fixed position. The structure enables the flat plate compactor of the present invention to have a better standby state, ensuring that the flat plate compactor is in a fixed working state in the absence of external force, reducing the operating difficulty of the flat plate compactor, and improving the applicable environment of the flat plate compactor.

[0053] The reversing handle 11 is connected to the rotating crankshaft 12 through a reversing connection structure. The reversing connection structure includes a shock-absorbing block 141, a spring chamber 142 and a crankshaft sleeve 143. One end of the shock-absorbing block 141 is connected to the reversing handle 11, and the other end is connected to the spring chamber 142. The other end of the spring chamber 142 is connected to the top shell 35. The crankshaft sleeve 143 is sleeved on the rotating crankshaft 12 and fixedly connected to the top shell 35.

[0054] The reversing handle 11 rotates about the rotating crankshaft 12, and the linkage crank 21 is disposed in the middle of the rod of the rotating crankshaft 12. In a preferred embodiment of the present invention, two positioning springs 13 are provided, symmetrically disposed on the rod of the rotating crankshaft 12 about the linkage crank 21. This structure facilitates the sensitivity of the linkage between the reversing operation structure and the linkage structure, improving the operating efficiency of the steering mechanism. Furthermore, the provision of multiple positioning springs 13 ensures that the reversing handle 11 can rebound to a fixed position in a timely manner, effectively improving rebound efficiency.

[0055] The positioning spring 13 is realized by a torsion spring, one end of which is fixed to the spring cavity 142, and the other end is fixed to the crankshaft sleeve 143 fixed to the top shell 35. During operation, the reversing handle 11 is pulled to rotate the rotating crankshaft 12 connected thereto. The rotation of the rotating crankshaft 12 will cause the torsion spring to change from a natural state to a twisted stress state. After releasing the reversing handle 11, the torsion spring will spontaneously twist from the twisted stress state to the natural state, and the twisting of the torsion spring will drive the rotating crankshaft 12, the spring cavity 142 and the shock absorber 141 to rotate. The rotation of the rotating crankshaft 12 drives the reversing handle 11 connected thereto to rotate. The torsion spring returns to its natural state, and the reversing handle 11 returns to its fixed position. When the above process is carried out, the linkage structure, the hydraulic transmission structure and the vibrator reversing structure will produce a corresponding linkage process to realize automatic positioning of the plate compactor. With the above structure, when the reversing external force operating the reversing handle 11 is lost, the reversing control mechanism of the plate compactor will automatically rebound the reversing handle 11 to a fixed position, thereby completing emergency control of the plate compactor, greatly improving the operational safety of the plate compactor, preventing production accidents, and improving construction quality.

[0056] The top shell 35 is provided with a first limiting rod 352 , which is used to limit the movement range of the linkage crank 21 to prevent abnormal movement of the linkage crank 21 due to excessive pressure.

[0057] Specifically, the present invention also provides a plate compactor, which is controlled by the above-mentioned plate compactor reversing control mechanism. The plate compactor includes a reversing control mechanism, a hydraulic mechanism, a power mechanism, a plate compactor bottom plate and a plate compactor guard frame. The reversing control mechanism, hydraulic mechanism and power mechanism are arranged inside the plate compactor guard frame, and the plate compactor guard frame is connected to the reversing control mechanism, hydraulic mechanism and power mechanism. The reversing control mechanism is connected to the hydraulic mechanism, and the hydraulic mechanism is connected to the power mechanism and the plate compactor bottom plate. The plate compactor bottom plate is arranged at the bottom of the plate compactor guard frame.

[0058] The hydraulic mechanism includes a top piston structure 3, a hydraulic chamber 4 and a terminal piston structure 5. The top piston structure 3 and the hydraulic chamber 4 are connected, and the hydraulic chamber 4 is connected to the terminal piston structure 5. The above structure can significantly improve the control effect of the plate compactor and improve the working efficiency of the plate compactor.

[0059] The top shell 35 includes a hydraulic tank head 144, and an oil filling port 351 is provided on the hydraulic tank head 144. The oil filling port 351 is used to add hydraulic oil. The oil filling port 351 also serves as an exhaust valve to facilitate the removal of excess gas in the top shell 35. One end of the spring chamber 142 is connected to the shock absorber block 141, and the other end is connected to the hydraulic tank head 144. The crankshaft sleeve 143 is sleeved on the rotating crankshaft 12 and fixedly connected to the hydraulic tank head 144.

[0060] The top piston structure 3 includes a top sealing pin 31, a top sealing sheath 32, a top return spring 33, a top spring seat 34 and a top shell 35. The top sealing pin 31 is connected to the top sealing sheath 32. The top return spring 33 is arranged between the top sealing pin 31 and the top spring seat 34, and one end is connected to the top sealing pin 31 and the other end is connected to the top spring seat 34. The top shell 35 is connected to the top sealing sheath 32 and the top spring seat 34. The top sealing pin 31, the top sealing sheath 32, the top spring seat 34 and the top shell 35 together constitute a top piston chamber 36. The top piston chamber 36 is connected to the hydraulic chamber 4. The linkage piston rod 22 is connected to the top sealing pin 31. A second limiting rod 353 is also provided on the top shell 35. The second limiting rod 353 is used to limit the motion range of the top piston structure 3 to prevent abnormal motion of the top piston structure 3 due to excessive pressure. By adopting the structure, the airtightness of the top piston structure 3 of the present invention can be effectively improved, and the service life of the product can be extended.

[0061] One end of the top sealing pin 31 is connected to the linkage piston rod 22, and the other end is connected to the top return spring 33. The end connected to the linkage piston rod 22 is provided with a top piston rod groove 311. The top piston rod groove 311 cooperates with the linkage piston rod 22, and the linkage piston rod 22 and the top sealing pin 31 are connected via the top piston rod groove 311. With this structure, the present invention has a better product design and rationally utilizes the internal structure and space of the product.

[0062] The power mechanism includes a vibrator reversing structure, which includes a screw piston rod 61, a transmission screw 62 and an eccentric vibrator 63. The eccentric vibrator 63 includes a reversing vibrator and a fixed vibrator. The screw piston rod 61 is connected to the end piston structure 5 and the transmission screw 62, and the transmission screw 62 is connected to the reversing vibrator.

[0063] The terminal piston structure 5 includes a terminal sealing pin 51 and a terminal sealing sheath 52, which are connected to each other. In a preferred embodiment of the present invention, the terminal sealing pin 51 and the terminal sealing sheath 52 form a terminal piston chamber 53, which is connected to the hydraulic chamber 4. The lead screw piston rod 61 is connected to the terminal sealing pin 51. This structure can effectively improve the sealing performance of the terminal piston structure 5 of the present invention and extend the service life of the product.

[0064] The end of the terminal sealing pin 51 connected to the lead screw piston rod 61 is provided with a terminal piston rod groove 511, which cooperates with the lead screw piston rod 61. In a preferred embodiment of the present invention, the lead screw piston rod 61 and the terminal sealing pin 51 are connected via the terminal piston rod groove 511. With this structure, the present invention has a better product design and rationally utilizes the internal structure and space of the product.

[0065] The top piston chamber 36, the hydraulic chamber 4 and the end piston chamber 53 are filled with hydraulic oil. By adopting the above method, the service life of the hydraulic chamber 4 can be significantly improved, and the hydraulic chamber 4 is conducive to the transmission of the force, thereby improving the sensitivity of the product.

[0066] Before work starts, the reversing handle 11, the rotating crankshaft 12, the linkage crank 21, the linkage piston rod 22, the top sealing pin 31, the end sealing pin 51, the screw piston rod 61 and the transmission screw 62 are in a fixed position state, the reversing vibrator is in a fixed angle state, and the top piston chamber 36 and the end piston chamber 53 are in a fixed volume state.

[0067] During operation, the reversing handle 11 is pushed forward, and the reversing handle 11 drives the rotating crankshaft 12 connected thereto to rotate, and the rotating crankshaft 12 drives the linkage crank 21 provided on its crankshaft body to rotate, and the rotation of the linkage crank 21 drives the linkage piston rod 22 connected thereto to move radially downward, and the downward radial displacement of the linkage piston rod 22 drives the top sealing pin 31 connected thereto to move radially downward, and the downward radial displacement of the top sealing pin 31 reduces the volume of the top piston chamber 36, and increases the pressure in the top piston chamber 36, thereby filling the top piston chamber 36 with hydraulic oil. The hydraulic chamber 4 moves toward the end piston chamber 53, and the hydraulic oil in the end piston chamber 53 increases, and the pressure in the end piston chamber 53 becomes greater, so that the end sealing pin 51 is forced to move forward laterally. The forward lateral displacement of the end sealing pin 51 drives the screw piston rod 61 connected thereto to move forward laterally. The forward lateral displacement of the screw piston rod 61 drives the transmission screw 62 connected thereto to move forward laterally. The forward lateral displacement of the transmission screw 62 drives the reversing vibrator to change its rotation angle forward. The forward change in the reversing vibrator's rotation angle causes the plate compactor to move forward, and the plate compactor enters a forward state.

[0068] Next, release the reversing handle 11, and the rotating crankshaft 12 rebounds to the fixed position under the action of the positioning spring 13, and the rotating crankshaft 12 drives the reversing handle 11 connected thereto to rebound to the fixed position, and at the same time, the rotating crankshaft 12 drives the linkage crank 21 provided thereon to move to the fixed position, and the linkage crank 21 rotates and drives the linkage piston rod 22 connected thereto to move to the fixed position, and the linkage piston rod 22 drives the top sealing pin 31 connected thereto to move to the fixed position, and the top sealing pin 31 moves to the fixed position so that the volume of the top piston chamber 36 returns to the fixed volume, and the top movable The pressure in the plug chamber 36 decreases, so that the hydraulic oil filled in the end piston chamber 53 moves to the top piston chamber 36 through the hydraulic chamber 4, the hydraulic oil in the end piston chamber 53 is reduced, the pressure in the end piston chamber 53 decreases and returns to a fixed volume, so that the end sealing pin 51 returns to the fixed position, and the end sealing pin 51 drives the screw piston rod 61 connected to it to return to the fixed position, and the screw piston rod 61 drives the transmission screw 62 connected to it to return to the fixed position, and the transmission screw 62 drives the reversing vibrator to rotate to a fixed angle, and the reversing vibrator returns to the fixed angle to make the plate compactor vibrate in place.

[0069] Next, pull the reversing handle 11 backward, and the reversing handle 11 drives the rotating crankshaft 12 connected thereto to rotate, and the rotating crankshaft 12 drives the linkage crank 21 provided on its crankshaft body to rotate, and the rotation of the linkage crank 21 drives the linkage piston rod 22 connected thereto to move radially upward, and the upward radial displacement of the linkage piston rod 22 drives the top sealing pin 31 connected thereto to move radially upward, and the upward radial displacement of the top sealing pin 31 increases the volume of the top piston chamber 36, and the pressure in the top piston chamber 36 becomes smaller, thereby filling the hydraulic oil in the end piston chamber 53 The hydraulic chamber 4 moves toward the top piston chamber 36, and the hydraulic oil in the terminal piston chamber 53 is reduced, and the pressure in the terminal piston chamber 53 becomes smaller, so that the terminal sealing pin 51 is forced to move laterally backward. The backward lateral displacement of the terminal sealing pin 51 drives the screw piston rod 61 connected thereto to move laterally backward. The backward lateral displacement of the screw piston rod 61 drives the transmission screw 62 connected thereto to move laterally backward. The backward lateral displacement of the transmission screw 62 drives the reversing vibrator to change its rotation angle backward. The backward change in the reversing vibrator's rotation angle causes the plate compactor to move backward, and the plate compactor enters a backward state.

[0070] Specifically, the present invention also provides a plate compactor control method using the above-mentioned plate compactor reversing control mechanism, the plate compactor control method provides three working states, the three working states including a forward state, an in-situ state and a backward state, the forward state is achieved by pushing the reversing handle 11 forward so that the reversing handle 11 moves forward from a fixed position, the in-situ state is achieved by keeping the reversing handle 11 in a fixed position, and the backward state is achieved by pulling the reversing handle 11 backward so that the reversing handle 11 moves backward from a fixed position, the plate compactor control method also provides a positioning state, that is, through the automatic rebound of the positioning spring 13, the reversing handle 11 that is free from the external force is rebounded to a fixed position, so that the plate compactor enters the in-situ state.

[0071] By adopting the above convenience, the plate compactor control method conforms to the ergonomic design, greatly improves the operator's efficiency in using the plate compactor, and makes the plate compactor using the plate compactor control method have better control effect. In a preferred embodiment of the present invention, the plate compactor control method also has a positioning state, which is convenient for the operator to adjust the working state of the plate compactor in time according to different working environments, effectively improving the working efficiency of the plate compactor using the plate compactor control method. At the same time, the above-mentioned positioning state also greatly reduces the traction required for the steering of the plate compactor, facilitates the flexible steering of the plate compactor in complex working environments, and improves the universality of the plate compactor to the working environment. In addition, the fixed state of the present control method is the in-situ state. After the plate compactor is started, it only vibrates in the in-situ state to prevent the plate compactor from automatically entering the forward state after being turned on in the prior art, causing inconvenience in operation.

[0072] During operation, the power mechanism is turned on and the reversing handle 11 is pushed forward, and the flat plate compactor is adjusted to enter the forward state through the reversing control mechanism. After the force applied to the reversing handle 11 is withdrawn, the reversing handle 11 rebounds under the action of the positioning spring 13, and the flat plate compactor is adjusted to enter the original state through the reversing control mechanism. The reversing handle 11 is pulled backward, and the flat plate compactor is adjusted to enter the backward state through the reversing control mechanism. After the force applied to the reversing handle 11 is withdrawn again, the reversing handle 11 rebounds under the action of the positioning spring 13, and the flat plate compactor is adjusted to enter the original state through the reversing control mechanism. The power mechanism is turned off and the flat plate compactor stops working.

[0073] In summary, the reversing control mechanism of the flat plate compactor of the present invention has higher durability, effectively improves the service life of the reversing control mechanism of the flat plate compactor, and reduces the production waste caused by frequent replacement of the reversing control mechanism of the flat plate compactor; the present invention is provided with a positioning spring 13, and under the condition that there is no external force affecting the reversing handle 11, the positioning spring 13 will make the reversing handle 11 fixedly rotate and maintain it in a fixed position. The structure enables the flat plate compactor of the present invention to have a better standby state, ensuring that the flat plate compactor is in a fixed working state when there is no external force, reducing the operating difficulty of the flat plate compactor and improving the applicable environment of the flat plate compactor; the present invention will automatically turn the reversing handle 11 when the reversing external force is lost. The handle 11 rebounds to a fixed position, thereby completing emergency control of the plate compactor, greatly improving the operational safety of the plate compactor, preventing production accidents, and improving construction quality; the present invention conforms to ergonomic design, greatly improves the operator's efficiency in using the plate compactor, and enables the plate compactor using the present plate compactor control method to have a better control effect, making it convenient for the operator to adjust the working state of the plate compactor in time according to different working environments, effectively improving the working efficiency of the plate compactor using the present plate compactor control method, and at the same time, the above-mentioned positioning state also greatly reduces the traction force required for the steering of the plate compactor, facilitates the flexible steering of the plate compactor in a complex working environment, and improves the universality of the plate compactor to the working environment.

[0074] It should be pointed out that for ordinary technicians in this field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A plate compactor reversing control mechanism, characterized in that: The plate compactor reversing control mechanism comprises a reversing handle (11), a rotating crankshaft (12), a positioning spring (13), a linkage crank (21) and a top housing (35); the reversing handle (11) is connected to the rotating crankshaft (12); the rotating crankshaft (12) is connected to the linkage crank (21); the reversing handle (11), the rotating crankshaft (12), the positioning spring (13) and the linkage crank (21) are arranged in the top housing (35); the positioning spring (13) is used for resetting the reversing handle (11); The reversing handle (11) is connected to the rotating crankshaft (12) via a reversing connection structure; The reversing connection structure comprises a damping block (141), a spring chamber (142) and a crankshaft sleeve (143); one end of the damping block (141) is connected to the reversing handle (11), and the other end is connected to the spring chamber (142); the other end of the spring chamber (142) is connected to the top housing (35); the crankshaft sleeve (143) is sleeved on the rotating crankshaft (12) and fixedly connected to the top housing (35); The positioning spring (13) is a torsion spring.

2. The plate compactor reversing control mechanism according to claim 1, characterized in that: A plurality of positioning springs (13) are provided.

3. The plate compactor reversing control mechanism according to claim 2, characterized in that: The positioning spring (13) is symmetrically arranged on the rod body of the rotating crankshaft (12) with the linkage crank (21) as the symmetry axis.

4. The plate compactor reversing control mechanism according to claim 3, characterized in that: A first limiting rod (352) is provided on the top end housing (35), and the first limiting rod (352) is used to limit the movement range of the linkage crank (21).

5. A plate compactor, characterized in that: The plate compactor adopts any one of claims 1-4 of the plate compactor reversing control mechanism, and the plate compactor further includes a hydraulic mechanism, a power mechanism and a plate compactor bottom plate. The reversing control mechanism is connected to the hydraulic mechanism, and the hydraulic mechanism is connected to the power mechanism and the plate compactor bottom plate.

6. The plate compactor according to claim 5, characterized in that: The hydraulic mechanism comprises a top piston structure (3), a hydraulic chamber (4) and a bottom piston structure (5); the top piston structure (3) is connected to the hydraulic chamber (4), and the hydraulic chamber (4) is connected to the bottom piston structure (5).

7. The plate compactor according to claim 6, characterized in that: The top piston structure (3) comprises a linkage piston rod (22), a top return spring (33), a top housing (35) and a top piston chamber (36), and the top piston chamber (36) is communicated with the hydraulic chamber (4).

8. The plate compactor according to claim 7, characterized in that: A second limiting rod (353) is also provided on the top housing (35), and the second limiting rod (353) is used to limit the range of motion of the top piston structure (3).

9. The plate compactor according to claim 8, characterized in that: The top piston chamber (36) is composed of a top sealing pin (31), a top sealing sheath (32), a top spring seat (34) and a top shell (35). The top sealing pin (31) is connected to the top sealing sheath (32). The top return spring (33) is arranged between the top sealing pin (31) and the top spring seat (34), and one end is connected to the top sealing pin (31) and the other end is connected to the top spring seat (34). The top shell (35) is connected to the top sealing pin (31). The closing sheath (32) and the top spring seat (34) are connected, one end of the top sealing pin (31) is connected to the linkage piston rod (22), and the other end is connected to the top return spring (33), and the end connected to the linkage piston rod (22) is provided with a top piston rod groove (311), and the top piston rod groove (311) cooperates with the linkage piston rod (22), and the linkage piston rod (22) and the top sealing pin (31) are connected through the top piston rod groove (311).

10. The plate compactor according to claim 9, characterized in that: The power mechanism includes a vibrator reversing structure, the vibrator reversing structure includes a screw piston rod (61), a transmission screw (62) and an eccentric vibrator (63), the eccentric vibrator (63) includes a reversing vibrator and a fixed vibrator, the screw piston rod (61) is connected to the end piston structure (5) and the transmission screw (62), and the transmission screw (62) is connected to the reversing vibrator.

11. The plate compactor according to claim 10, characterized in that: The terminal piston structure (5) comprises a terminal sealing pin (51) and a terminal sealing sheath (52), wherein the terminal sealing pin (51) and the terminal sealing sheath (52) constitute a terminal piston cavity (53), wherein the terminal piston cavity (53) is communicated with the hydraulic cavity (4), and the lead screw piston rod (61) is connected to the terminal sealing pin (51).

12. The plate compactor according to claim 11, characterized in that: An end of the end sealing pin (51) connected to the lead screw piston rod (61) is provided with an end piston rod groove (511), and the end piston rod groove (511) matches the lead screw piston rod (61), and the lead screw piston rod (61) and the end sealing pin (51) are connected via the end piston rod groove (511).

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