Anti-splashing device

Abstract

The invention relates to the technical field of coal mine fully mechanized mining, and discloses an anti-splashing device which comprises a protection base, a protection top plate and a hydraulic component hinged between the protection base and the protection top plate, and the hydraulic component is arranged to be capable of driving the protection top plate to ascend and descend in the first direction. The top end of the first protective net is connected to the protective top plate, the protective plate is connected to the first protective net and the protective base so as to prevent gangue from penetrating through the hydraulic component, and the protective plate is arranged on the hydraulic component; rails extending in the first direction are symmetrically arranged on the surface, back on to the hydraulic component, of the protection plate along the center line of the surface, and connecting assemblies capable of sliding in the rails are correspondingly arranged on the two sides of the bottom of the first protection net. And the first protective net can be overlapped with the protective plate. The problems that in the prior art, when a hydraulic support ascends and descends, comprehensive protection cannot be achieved, a protection blind area exists, and the protection effect is reduced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fully-mechanized coal mining, and particularly to a splash-proof device. Background Art

[0002] A steeply-inclined fully-mechanized coal mining face refers to a working face in coal mining where the inclination angle of the coal seam is relatively large, generally more than 45 degrees, and even up to 60 - 70 degrees. In such a working face, during the mining operation, due to the large inclination angle of the coal seam, it is easy for gangue (rocks that do not contain or contain very little coal that can be mined) to roll down during coal mining, posing a serious safety threat to the workers. Therefore, setting an effective anti-gangue splash device is a necessary measure to ensure the safety of the working face and prevent gangue from injuring people.

[0003] Currently, the anti-gangue splash devices for steeply-inclined fully-mechanized coal mining faces mostly adopt the form of protective nets. These protective nets are usually directly installed on the front columns of hydraulic supports to block the splashed or rolled gangue during coal mining. However, this kind of protective net has certain limitations. When the hydraulic support needs to move forward during the coal cutting process by the shearer, its movement first involves the reduction of the roof height to avoid the protective net being crushed by the support roof. Therefore, the height of the protective net cannot exceed the height of the front column in the fully retracted state. This means that when the hydraulic support roof rises to support the coal seam roof, there will be a part of the space in the rising section of the support that cannot be covered by the protective net, and it is easy for gangue to fall into the hydraulic support through this part of the space, posing a certain safety hazard.

[0004] In summary, the existing protective net devices for preventing gangue splash in steeply-inclined fully-mechanized coal mining faces cannot provide comprehensive protection during the lifting and lowering of hydraulic supports, there are protection blind spots, thus reducing the protection effect against gangue splash and increasing the risk of gangue injuring people. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical problems.

[0006] To achieve the above purpose, the present invention provides a splash-proof device, including a protective base, a protective roof, and a hydraulic component disposed between the protective base and the protective roof. The hydraulic component is configured to drive the protective roof to lift and lower along a first direction. The splash-proof device further includes:

[0007] A first protective net whose top end is connected to the protective roof and a protective plate that blocks the space between the first protective net and the protective base to prevent gangue from passing through the hydraulic component. The protective plate is disposed on the hydraulic component;

[0008] Wherein, a track extending in a first direction is provided on the surface of the protective plate facing away from the hydraulic component. Connecting components capable of sliding in the track are correspondingly arranged on both sides of the first protective net, so that the first protective net can overlap with the protective plate. The connecting component includes a guide block slidably arranged in the track and a mounting block pivotally connected to the side of the guide block facing away from the track. Both sides of the first protective net are correspondingly connected to the mounting block.

[0009] Optionally, a reset component is connected between the first protective net and the protective plate for applying a downward pulling force along the first direction to the first protective net, including at least two elastic members and a tensioning member correspondingly connecting the elastic members and the first protective net. The elastic members apply a downward pulling force along the first direction to the first protective net through the tensioning member.

[0010] Optionally, the elastic members are all arranged on the side of the protective plate facing away from the first protective net. A fixing hole is provided on the protective plate, and a sliding member is arranged in the fixing hole. The sliding member is used to change the pulling force direction of the elastic members applied to the first protective net through the tensioning member.

[0011] Optionally, a receiving channel for an operator to pass through and a second protective net covering the receiving channel are provided on the protective plate. The second protective net is rotatably arranged on the surface of the protective plate facing the hydraulic component to be able to open or close the receiving channel.

[0012] Optionally, the anti-spray device includes a rotating component. The rotating component includes a first insertion tube arranged on the protective plate and located at the edge of the receiving channel and a first insertion rod capable of being inserted into the first insertion tube. The first insertion rod is arranged on the first protective net to limit the movement of the first protective net in the direction perpendicular to the protective plate.

[0013] Optionally, the anti-spray device further includes a locking component for limiting the rotation angle of the second protective net. The locking component includes a second insertion tube arranged on the protective plate and a second insertion rod capable of being inserted into and rotating relative to the second insertion tube. The second insertion rod is connected to the protective plate through a limiting rod;

[0014] Wherein, the extending direction of the limiting rod is perpendicular to the extending direction of the second insertion rod. A plurality of grooves capable of accommodating the limiting rod are circumferentially spaced at the top port of the second insertion tube. The plurality of grooves do not communicate with each other, so as to limit the rotation angle of the protective net by changing the limiting rod in different grooves.

[0015] Optionally, a first clamping groove and a second clamping groove are provided at the top port of the second insertion tube. The groove directions of the first clamping groove and the second clamping groove are set to correspond to the open and closed states of the second protective net respectively.

[0016] Optionally, the anti-spill device further includes a mounting assembly, which includes a first fixing base provided on the hydraulic component and a first fixing block provided on the protective plate. The first fixing base and the first fixing block are in plug-in fit to connect the protective plate to the hydraulic component.

[0017] Optionally, a T-shaped groove is formed in the first fixing base;

[0018] The outer contour of the first fixing block is set to be T-shaped so as to be inserted into the T-shaped groove;

[0019] Among them, the anti-spill device further includes a fixing component for fixing the first fixing block in the T-shaped groove.

[0020] Optionally, the anti-spill device further includes:

[0021] A connecting hole, which is provided on the protective top plate;

[0022] A connecting component, which is arranged in the grid on the side of the first protective net relatively close to the protective top plate to connect the first protective net and the protective top plate.

[0023] Through the above technical solutions, the top of the first protective net in the present invention is fixed to the protective top plate, and the bottom is connected to the protective base through the protective plate. Both are arranged on the hydraulic component, forming a continuous protective barrier from the protective top plate to the protective base. At the same time, the first protective net and the protective plate are in sliding fit through the connecting component, so that during the process of the hydraulic component lifting the protective top plate, the first protective net and the protective plate can dynamically cover the space between the protective top plate and the protective base, completely eliminating the uncovered blind area caused by the height limitation of the traditional protective net, and effectively preventing the gangue from passing through this area through the hydraulic component and splashing into the interior of the device. Description of the Drawings

[0024] Figure 1 Shows the overall structural schematic diagram of the protective device according to the embodiment of the present application;

[0025] Figure 2 Shows the schematic diagram of the first perspective of the protective device according to the embodiment of the present application;

[0026] Figure 3 Shows the structural schematic diagram of the elastic member and the mounting assembly mounted on the protective plate according to the embodiment of the present application;

[0027] Figure 4 Shows the position schematic diagram of the locking assembly and the rotating assembly on the first protective net according to the embodiment of the present application;

[0028] Figure 5 Shows the structural schematic diagram of the locking assembly and the rotating assembly according to the embodiment of the present application;

[0029] Figure 6Shows a schematic structural diagram of the locking component in the locked state according to an embodiment of the present application;

[0030] Figure 7 Shows a schematic diagram of the locking component in the unlocked state according to an embodiment of the present application;

[0031] Figure 8 Shows a schematic structural diagram of the mounting component according to an embodiment of the present application;

[0032] Figure 9 Shows a schematic structural diagram of the first protective net according to an embodiment of the present application;

[0033] Figure 10 Shows a schematic structural diagram of the track according to an embodiment of the present application;

[0034] Figure 11 Shows a schematic structural diagram of the connection component according to an embodiment of the present application;

[0035] Figure 12 Shows a schematic structural diagram of the connecting member according to an embodiment of the present application.

[0036] Description of reference numerals

[0037] 1. Protective base; 2. Protective top plate; 3. Hydraulic component; 4. Protective plate; 5. Track; 6. First protective net; 7. Guide block; 8. Mounting block; 9. Elastic member; 10. Sliding member; 11. Tension member; 12. Second protective net; 13. Rotating assembly; 131. First insertion tube; 132. First insertion rod; 14. Locking assembly; 141. Second insertion tube; 142. Second insertion rod; 143. Limiting rod; 144. First clamping groove; 145. Second clamping groove; 15. Mounting assembly; 151. First fixing seat; 152. First fixing block; 153. Fixing component; 154. T-shaped groove; 16. Connecting member; 161. Hooking portion; 162. Locking portion; 17. Four-bar linkage; 171. Second shielding plate; 172. First shielding plate; 173. Connecting rod. Detailed description of the specific implementation

[0038] The following will describe in detail the specific implementation of the present invention with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only for explaining and illustrating the present invention, and is not used to limit the present invention.

[0039] Refer to Figure 1 and Figure 2 , the anti-splash device of the present invention includes a protective base 1, a protective top plate 2, and a hydraulic component 3 hinged between the protective base 1 and the protective top plate 2. The hydraulic component 3 is configured to be able to drive the protective top plate 2 to lift along the first direction. The anti-splash device further includes:

[0040] The first protective net 6 is connected to the top of the protective roof plate 2, and the protective plate 4 shields the space between the first protective net 6 and the protective base 1 to prevent gangue from passing through the hydraulic component 3. The protective plate 4 is disposed on the hydraulic component 3.

[0041] Wherein, a track 5 extending in the first direction is provided on the surface of the protective plate 4 facing away from the hydraulic component 3. Corresponding connection components capable of sliding within the track 5 are provided on both sides of the bottom of the first protective net 6, so that the first protective net 6 can overlap with the protective plate 4.

[0042] Wherein, the first direction is set to be perpendicular to the top surface of the protective base 1.

[0043] It can be understood that when the hydraulic component 3 is in a fully retracted state (i.e., the relative distance between the protective roof plate 2 and the protective base 1 is the smallest), at least a part of the first protective net 6 can overlap with the entire protective plate 4; when the hydraulic component 3 jacks up the protective roof plate 2 in the first direction, the first protective net 6 rises synchronously with the protective roof plate 2, and its bottom end slides along the track 5 through the connection component. During the rising process of the first protective net 6, the surface of the protective plate 4 facing away from the hydraulic component 3 is gradually exposed to dynamically cover the newly exposed space between the first protective net 6 and the protective base 1.

[0044] In the present invention, referring to Figure 1 and Figure 2 , one end of the protective roof plate 2 has a part extending outward relative to the length direction of the protective base 1 of the protective base 1. This part of the structure is used to shield the working coal face on this side of the protective device.

[0045] The hydraulic component 3 is arranged between the protective roof plate 2 and the protective base 1 and near the end of the working coal face. The connection mode of the hydraulic component 3 with the protective roof plate 2 and the protective base 1 can be hinged.

[0046] Wherein, a four-bar linkage mechanism 17 can be provided at one end of the protective roof plate 2 and the protective base 1 away from the hydraulic component 3.

[0047] Generally, referring to Figure 1 and Figure 2 , the protective roof plate 2, the protective base 1, the hydraulic component 3, the first protective net 6 and the protective plate 4 of a single anti-spray device can enclose to form a basic protection unit. In the production environment, multiple anti-spray devices can be arranged longitudinally along the working face with zero spacing to connect multiple protection units, thereby forming a protection corridor parallel to the working face. Operators can safely pass through the protection corridor, and the continuous barrier of the first protective net 6 and the protective plate 4 can effectively block the flying gangue during coal mining and avoid it from causing harm to personnel.

[0048] In the present invention, the four-bar linkage 17 includes a first shutter 172 hinged at one end to the protective base 1 and a second shutter 171 hinged to the other end of the first shutter 172, and the other end of the second shutter 171 is hinged to the protective top plate 2. In addition, the four-bar linkage 17 further includes at least two telescopic rods 173 with both ends respectively and correspondingly hinged to the second shutter 171 and the protective base 1. It can be understood that when the hydraulic component 3 raises and lowers the protective top plate 2, it will force the four-bar linkage 17 to deform, so as to cooperate with the rise of the protective top plate 2.

[0049] It can be understood that when the hydraulic component 3 jacks up the protective top plate 2, both ends of the hydraulic component 3 rotate around the hinge points of the protective base 1 and the protective top plate 2 respectively, resulting in the overall inclination of the hydraulic component 3 relative to the protective base 1 by a certain angle. At this time, the protective plate 4 provided on the hydraulic component 3 will also rotate synchronously with it. Similarly, the protective top plate 2 will also incline by a certain angle.

[0050] It should be noted that the protective plate 4 will rotate by a corresponding angle following the hydraulic component 3 (the protective plate 4 is provided on the hydraulic component 3). However, due to the difference between the angles of rotation of the protective top plate 2 and the hydraulic component 3 relative to the protective base 1, the first protective net 6 with both ends respectively connected to the protective top plate 2 and the protective plate 4 will undergo corresponding deformation. And this kind of deformation easily causes local stress concentration in the first protective net 6 due to stretching or twisting.

[0051] Regarding this, referring to Figure 1 、 Figure 2 、 Figure 10 and Figure 11 , the connecting component 16 in the present invention may include a guide block 7 slidably disposed in the track 5 and a mounting block 8 pivotally connected to the side of the guide block 7 facing away from the track 5. Both sides of the first protective net 6 can be correspondingly connected to the mounting block 8, so that the first protective net 6 can rotate around the first axis during the lifting process and independently adapt to the inclination changes at both ends.

[0052] This rotation mechanism eliminates the deviation of the first protective net 6 caused by the lifting of the hydraulic component 3, so that the first protective net 6 can move smoothly, thereby avoiding the deformation amount caused by the additional tension and friction of the first protective net 6 due to the angle deviation during the movement of the protective top plate 2, thus significantly improving the durability of the first protective net 6, significantly enhancing the structural durability and long-term protection reliability, and reducing the maintenance cost and replacement frequency.

[0053] Among them, the first axis is perpendicular to the first direction.

[0054] Therefore, in the present invention, the top end of the first protective net 6 is fixed to the protective top plate 2, and the gap between the bottom of the first protective net 6 and the protective base 1 is blocked by the protective plate 4. Both are arranged outside the hydraulic component 3 to form a continuous protective barrier from the protective top plate 2 to the protective base 1. At the same time, the first protective net 6 and the protective plate 4 are slidably fitted through the connecting component. During the process of the total protective top plate 2 of the hydraulic component 3 rising and falling, the space between the protective top plate 2 and the protective base 1 can be dynamically covered by the first protective net 6 and the protective plate 4, completely eliminating the uncovered blind area caused by the height limitation of the traditional protective net, effectively preventing the gangue from splashing into the interior of the device through this area, and greatly improving the comprehensiveness of safety protection.

[0055] In some embodiments, referring to Figure 2 , Figure 3 and Figure 9 , a reset component is connected between the first protective net 6 and the protective plate 4 for applying a downward pulling force along the first direction to the first protective net 6. The reset component includes at least two elastic members 9 and tension members 11 corresponding to connect the elastic members 9 and the first protective net 6. The elastic members 9 apply a downward pulling force along the extending direction of the track 5 to the first protective net 6 through the pulling members.

[0056] In the present invention, when the first protective net 6 moves upward, the elastic member 9 is stretched and stores mechanical energy. When it is necessary to shorten the distance between the protective top plate 2 and the protective base 1, the elastic member 9 releases the stored mechanical energy during the process of restoring its original state, driving the tension member 11 to move in the opposite direction, thereby driving the first protective net 6 to automatically reset downward, so that during the descent of the protective top plate 2, the lower end of the first protective net 6 can smoothly slide along the guide rail to adapt to the descending distance of the protective top plate 2, avoiding the situation that the first protective net 6 is damaged due to extrusion because it cannot timely slide a corresponding distance along the track 5.

[0057] In some embodiments, the elastic members 9 can be arranged on the side of the protective plate 4 facing away from the first protective net 6 to prevent the elastic members 9 from being damaged by the splashing gangue. Fixed holes can be provided on the protective plate 4, and sliding members 10 are arranged in the fixed holes. The sliding members 10 are used to change the pulling force direction of the elastic members 9 applied to the first protective net 6 through the tension members 11.

[0058] Among them, the fixed holes can be arranged at the bottom of the protective plate 4.

[0059] Among them, the elastic member 9 can be a spring, the tension member 11 can be a steel wire rope, and the sliding member 10 can be a pulley. In the present invention, one end of the steel wire rope is connected to the spring, and the other end passes around the outer end surface of the pulley to pass through the fixed hole and is connected to the lower end of the first protective net 6. During use, when the first protective net 6 needs to be in Figure 9When moving upward, it will continuously pull the steel wire rope upward. Under the action of the pulley, the movement of the steel wire rope is more convenient. At this time, the spring is gradually stretched. When it is necessary to shorten the distance between the protective roof 2 and the protective base 1, under the action of the spring tension, the steel wire rope will move in the opposite direction to drive the first protective net 6 to perform a reset movement. At the same time, the setting of the pulley not only makes the movement of the tensioning member 11 smoother and more convenient, but also can effectively reduce the friction and wear of the tensioning member 11 during the movement, thereby enhancing the stability of the first protective net 6 and ensuring its reliable protection under dynamic working conditions.

[0060] In some embodiments, referring to Figure 3 and Figure 4 , the protective plate 4 is provided with an accommodation passage for the operator to pass through and a second protective net 12 rotatably arranged in the accommodation passage to be able to open or close the accommodation passage. Of course, in some other embodiments, the second protective net 12 can be rotatably arranged on the surface of the protective plate 4 facing the hydraulic component 3.

[0061] It can be understood that when it is necessary for the operator to enter, the accommodation passage can be opened by rotating the second protective net 12. This design simplifies the steps of entering the protection area, improves the operation efficiency, and at the same time reduces the risk of rock splashing increased by opening the protection structure, ensuring the safety of personnel. The presence of the second protective net 12 can not only effectively block the accommodation passage when closed to prevent rocks from entering the area near the hydraulic component 3 through this passage, but also maintain the protection of the space around the hydraulic component 3 as the protective plate 4 moves when the protective roof 2 is lifted or lowered. Even when the second protective net 12 needs to be opened to allow personnel to enter, the presence of the second protective net 12 in the open state can still protect part of the space and reduce the possibility of rock hurting people.

[0062] In some embodiments, referring to Figure 4 and Figure 5 , the anti-splash device includes a rotating assembly 13. The rotating assembly 13 includes a first insertion tube 131 arranged on the protective plate 4 and located at the edge of the accommodation passage and a first insertion rod 132 that can be inserted into the first insertion tube 131. The first insertion rod 132 is arranged on the first protective net 6 to limit the movement of the first protective net 6 in the direction perpendicular to the protective plate 4.

[0063] Among them, the first insertion tube 131 can rotate relative to the second insertion tube 141.

[0064] In some embodiments, referring to Figure 4 , Figure 5 , Figure 6 and Figure 7, the anti-splash device further includes a locking component 14 for restricting the rotation angle of the second protective net 12. The locking component 14 includes a second insertion tube 141 provided on the protective plate 4 and a second insertion rod 142 that can be inserted into and rotate relative to the second insertion tube 141. The second insertion rod 142 is connected to the protective plate 4 through a limiting rod 143.

[0065] Wherein, the extending direction of the limiting rod 143 is perpendicular to the extending direction of the second insertion rod 142. A plurality of grooves capable of accommodating the limiting rod 143 are arranged at intervals along the circumferential direction of the top port of the second insertion tube 141. The plurality of grooves are not communicated with each other, so as to limit the rotation angle of the protective net by changing the limiting rod 143 in different grooves.

[0066] Wherein, the relatively lower part of the second insertion tube 141 presents a hollow cylindrical shape.

[0067] In some embodiments, a first clamping groove 144 and a second clamping groove 145 are formed at the top port of the second insertion tube 141. The groove directions of the first clamping groove 144 and the second clamping groove 145 are set to correspond to the open and closed states of the second protective net 12 respectively.

[0068] Wherein, with reference to Figure 6 , the first clamping groove 144 presents an irregular shape, and the second clamping groove 145 is approximately U-shaped.

[0069] Wherein, the length of the second insertion rod 142 in the vertical direction is greater than the length of the first insertion rod 132 in the vertical direction. The length of the second insertion rod 142 is greater than the length of the first insertion rod 132.

[0070] It can be understood that when in the closed state, the limiting rod 143 can be stuck in the second clamping groove 145. When the second protective net 12 is in the open state, the limiting rod 143 can be stuck in the first clamping groove 144.

[0071] During use, when it is necessary to open the accommodation channel, pull up the second protective net 12. During the pulling process, the first insertion rod 132 continuously moves away from the first insertion tube 131 until the first insertion rod 132 is separated from the first insertion tube 131. However, during this process, the second insertion rod 142 will not be separated from the second insertion tube 141, and the limiting rod 143 disengages from the second clamping groove 145. Then rotate the second protective net 12 to one side, and the accommodation channel is opened. When it is opened to the point where a person can enter, move the second protective net 12 downward, and the limiting rod 143 enters into the second clamping groove 145 and is clamped with the second clamping groove 145. At this time, the side wall of the second clamping groove 145 can prevent the second protective net 12 from resetting. When it is necessary to close the accommodation channel, just operate in the reverse direction.

[0072] Of course, in some other embodiments, the length of the second insertion rod 142 may be set to be lower than that of the first insertion rod 132, so as to rotate the second protective net 12 through the rotating assembly 13. It should be noted that, in this embodiment, the locking assembly 14 only needs to play a role in restricting the movement in the direction perpendicular to the protection plate 4.

[0073] In some embodiments, referring to Figure 8 and Figure 3 , the anti-spray device further includes a mounting assembly 15. The mounting assembly 15 includes a first fixing seat 151 provided on the hydraulic component 3 and a first fixing block 152 provided on the protection plate 4. The first fixing seat 151 and the first fixing block 152 are in plug-in fit to connect the protection plate 4 to the hydraulic component 3.

[0074] In some embodiments, a T-shaped groove 154 may be formed on the first fixing seat 151; the outer contour of the first fixing block 152 may be set to be T-shaped to fit the T-shaped groove 154 on the first fixing seat 151, so that the first fixing block 152 can be inserted into the first fixing seat;

[0075] Among them, the anti-spray device further includes a fixing component 153 for fixing the first fixing block 152 in the T-shaped groove 154.

[0076] In the present invention, during use, the protection plate 4 with the first fixing block 152 can be inserted into the first fixing seat 151 from above the first fixing seat 151 and fixed using the fixing component 153.

[0077] Among them, the fixing component 153 may include a bolt or other appropriate fixing structures, which will not be elaborated herein too much.

[0078] In some embodiments, referring to Figure 9 and Figure 12 , the anti-spray device further includes:

[0079] A connection hole, which is provided on the protection top plate 2;

[0080] A connection component 16, which is provided in the grid on the side of the first protective net 6 relatively close to the protection top plate 2 to connect the first protective net 6 and the protection top plate 2.

[0081] Furthermore, the connection component 16 includes:

[0082] A hooking portion 161, one end of the hooking portion 161 is provided with a first thread;

[0083] A locking portion 162, the inner wall of the locking portion 162 is provided with a second thread that cooperates with the first thread.

[0084] Specifically, as Figure 9 ,Figure 12 As shown, connection holes are also provided on the protective top plate 2. The hooking part 161 of the connection component 16 can pass through the connection holes and penetrate into the meshes of the first protective net 6. At the same time, the locking part 162 is used for fastening.

[0085] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited thereto. Within the technical concept scope of the present invention, various simple modifications can be made to the technical solutions of the present invention. To avoid unnecessary repetition, the present invention will not separately describe various possible combinations. But these simple modifications and combinations should also be regarded as the content disclosed by the present invention and all fall within the protection scope of the present invention.

Claims

1. A splash-proof device, comprising a protective base (1), a protective top plate (2), and a hydraulic component (3) disposed between the protective base (1) and the protective top plate (2), wherein the hydraulic component (3) is configured to drive the protective top plate (2) to move up and down in a first direction, and is characterized in that, The anti-spray device further includes: A first protective net (6) with its top connected to the protective top plate (2) and a protective plate (4) blocking the space between the first protective net (6) and the protective base (1) to prevent gangue from passing through the hydraulic component (3), and the protective plate (4) is arranged on the hydraulic component (3); Wherein, a track (5) extending in a first direction is provided on the surface of the protective plate (4) facing away from the hydraulic component (3), and connecting components capable of sliding in the track (5) are correspondingly arranged on both sides of the first protective net (6) so that the first protective net (6) can overlap with the protective plate (4). The connecting component includes a guide block (7) slidably arranged in the track (5) and a mounting block (8) pivotally connected to the side of the guide block (7) facing away from the track (5), and both sides of the first protective net (6) are correspondingly connected to the mounting blocks (8).

2. The anti-splash device according to claim 1, characterized in that, A reset component is connected between the first protective net (6) and the protective plate (4), including at least two elastic members (9) and a tension member (11) correspondingly connecting the elastic members (9) and the first protective net (6), and the elastic members (9) apply a downward pulling force to the first protective net (6) along the direction parallel to the extension of the track (5) through the tension member (11).

3. The anti-splash device according to claim 2, wherein, The elastic members (9) are all arranged on the side of the protective plate (4) facing away from the first protective net (6). Fixed holes are provided on the protective plate (4), and sliding members (10) are arranged in the fixed holes. The sliding members (10) are used to change the pulling force direction of the elastic members (9) applied to the first protective net (6) through the tension member (11).

4. The anti-splash device according to claim 1, characterized in that, The protective plate (4) is provided with an accommodation passage for the operator to pass through and a second protective net (12) rotatably arranged in the accommodation passage to be able to open or close the accommodation passage.

5. The anti-splash device according to claim 4, characterized in that, The anti-spray device includes a rotation component (13). The rotation component (13) includes a first insertion tube (131) arranged on the protective plate (4) and located at the edge of the accommodation passage and a first insertion rod (132) capable of being inserted into the first insertion tube (131). The first insertion rod (132) is arranged on the first protective net (6) to limit the movement of the first protective net (6) in the direction perpendicular to the protective plate (4).

6. The anti-splash device according to claim 4, wherein, The anti-spray device further includes a locking component (14) for limiting the rotation angle of the second protective net (12). The locking component (14) includes a second insertion tube (141) arranged on the protective plate (4) and a second insertion rod (142) capable of being inserted into and rotating relative to the second insertion tube (141). The second insertion rod (142) is connected to the protective plate (4) through a limiting rod (143). Among them, the extending direction of the limiting rod (143) is perpendicular to the extending direction of the second inserting rod (142). At the top port of the second inserting tube (141), a plurality of groove bodies capable of accommodating the limiting rod (143) are arranged at intervals along the circumferential direction of the second inserting tube (141). The plurality of groove bodies are not communicated with each other, so as to limit the rotation angle of the protection net by changing the groove body in which the limiting rod (143) is located.

7. The anti-splash device according to claim 6, characterized in that, At the top port of the second inserting tube (141), a first clamping groove (144) and a second clamping groove (145) are formed. The groove directions of the first clamping groove (144) and the second clamping groove (145) are set to correspond to the opening and closing states of the second protection net (12) respectively.

8. The anti-splash device according to claim 1, characterized in that, The anti-spray device further includes a mounting assembly (15). The mounting assembly (15) includes a first fixed seat (151) provided on the hydraulic component (3) and a first fixed block (152) provided on the protection plate (4). The first fixed seat (151) and the first fixed block (152) are in plug-in fit to connect the protection plate (4) to the hydraulic component (3).

9. The anti-spray device according to claim 8, wherein a T-shaped groove (154) is formed on the first fixed seat (151); the outer contour of the first fixed block (152) is T-shaped so as to be inserted into the T-shaped groove (154); among them, the anti-spray device further includes a fixing component (153) for fixing the first fixed block (152) in the T-shaped groove (154).

10. The anti-splash device according to claim 1, characterized in that, The anti-spray device further includes: a connecting hole, which is arranged on the protection top plate (2); a connecting component (16), which is arranged in the grid on the side of the first protection net (6) relatively close to the protection top plate (2) to connect the first protection net (6) and the protection top plate (2).

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