Hydraulic clamping device and movable drainage equipment

Abstract

The utility model provides a hydraulic clamping device and movable drainage equipment, and relates to the technical field of clamping devices, the hydraulic clamping device comprises a support, a sliding frame, a retainer, a driving piece, an elastic piece and a hydraulic driving element; the sliding frame is slidably assembled on the support and limited by the support to slide in the first direction. The retainer comprises a first retainer and a second retainer, is slidably assembled on the bracket and is limited by the bracket to slide along a second direction; a first driving surface and a second driving surface are respectively arranged on two sides of the driving piece; the elastic piece acts on the driving piece, so that the first driving surface and the second driving surface respectively push the first retainer and the second retainer to reversely act along the second direction so as to reversely press the sliding frame; and the hydraulic driving element is used for driving the driving piece to overcome the elastic piece so that the first driving surface and the second driving surface are separated from the first retainer and the second retainer. The hydraulic clamping device can stably and reliably limit the water pump to the fixed height for a long time, and the water pump is prevented from falling.

Description

Technical Field

[0001] The present application relates to the technical field of clamps, and in particular to a hydraulic clamp and a mobile drainage device. Background Art

[0002] Mobile drainage equipment is equipped with water pumps. When heavy rain causes serious waterlogging in low-lying areas, roads, underground parking lots, etc. in the city, the mobile drainage equipment can perform emergency drainage operations, quickly restore traffic order, and reduce the impact of urban flooding on residents' lives and property.

[0003] In some mobile drainage systems, a drive device (e.g., a hydraulic cylinder) drives the water pump to change position. During drainage, the drive device lowers the water pump into the water to perform drainage operations; during mobility, the drive device retracts the water pump and maintains it at a fixed height. Existing mobile drainage systems struggle to maintain a stable, long-term height control solely through the drive device. Furthermore, uneven road surfaces can impact the drive device during operation, causing it to fail and the water pump to fall. Therefore, there is a need for a clamp for mobile drainage systems that can reliably and stably control the water pump at a fixed height over time, preventing it from falling. Utility Model Content

[0004] The technical problem to be solved by this application is to propose a hydraulic clamp and a mobile drainage device in response to the above-mentioned deficiencies in the prior art.

[0005] A hydraulic clamp, comprising:

[0006] Bracket;

[0007] a sliding frame slidably mounted on the bracket and limited by the bracket to slide along a first direction;

[0008] a stopper, comprising a first stopper and a second stopper, and slidably assembled on the bracket and limited by the bracket to slide along a second direction; the second direction is perpendicular to the first direction;

[0009] a driving member inserted between the first stop member and the second stop member; the driving member is provided with a first driving surface and a second driving surface on both sides thereof; the first driving surface is located on a side close to the first stop member, and the second driving surface is located on a side close to the second stop member; the first driving surface and the second driving surface are symmetrically inclined relative to the movement direction of the driving member;

[0010] an elastic member acting on the driving member to cause the first driving surface and the second driving surface to respectively push the first stopping member and the second stopping member to move in opposite directions along the second direction to press the sliding frame in opposite directions to limit sliding of the sliding frame;

[0011] The hydraulic driving element is used to drive the driving member to overcome the elastic member so that the first driving surface and the second driving surface are out of contact with the first stopping member and the second stopping member, so as to allow the sliding frame to slide freely.

[0012] Optionally, the sliding frame is provided with a first guide rail and a second guide rail facing each other, the first guide rail and the second guide rail are passed through the bracket, and the outer surfaces of the first guide rail and the second guide rail form a sliding fit with the bracket; wherein the area between the first guide rail and the second guide rail is the inner side, and the area outside the first guide rail and the second guide rail is the outer side;

[0013] The first stopper and the second stopper are located between the first guide rail and the second guide rail, and the first stopper is located on one side of the first guide rail, and the second stopper is located on one side of the second guide rail.

[0014] Optionally, along the direction in which the elastic member pushes the driving member forward, the first driving surface and the second driving surface move closer to each other;

[0015] The hydraulic driving element is arranged in front of the driving member and can extend to push the driving member to overcome the elastic member and move backward.

[0016] Optionally, a first recessed structure is provided on the inner surface of the first guide rail, and the first stopper is adapted to the shape of the first recessed structure;

[0017] A second recessed structure is provided on the inner surface of the second guide rail, and the second stopper is adapted to the shape of the second recessed structure.

[0018] Optionally, a first groove is provided on the first stopper and a second groove is provided on the second stopper on the inner side between the first stopper and the second stopper; a first cylindrical pressure roller is installed in the first groove and can rotate freely in the first groove; a second cylindrical pressure roller is installed in the second groove and can rotate freely in the second groove;

[0019] The first driving surface pushes the first stopper to press the sliding frame through the first cylindrical pressure roller; the second driving surface pushes the second stopper to press the sliding frame through the second cylindrical pressure roller.

[0020] Optionally, rough textures are machined on the contact surfaces of the first stopper, the second stopper and the sliding frame.

[0021] Optionally, the hydraulic drive element is a plunger cylinder, and its rodless chamber is provided with an oil port.

[0022] The present application also provides a mobile drainage device, which includes: a frame, a walking mechanism, a water pump assembly, a driving device, and the above-mentioned hydraulic clamp; the water pump assembly is rotatably connected to the frame, and the driving device is used to drive the water pump assembly to rotate; the hydraulic clamp is connected between the frame and the water pump assembly.

[0023] In the present application, the first driving surface and the second driving surface are symmetrically inclined relative to the direction of movement of the driving member. Therefore, on the one hand, the driving member can slide so that the first driving surface and the second driving surface respectively push the first stop member and the second stop member to move in opposite directions to press the sliding frame in opposite directions. On the other hand, the first driving surface and the second driving surface are inclined surfaces. When the elastic member acts on the driving member, the first stop member and the second stop member can press the sliding frame. Moreover, by arranging them at appropriate angles, the pressing force of the first stop member and the second stop member on the sliding frame can be much greater than the elastic force applied to the driving member by the elastic member, thereby allowing the sliding frame to obtain sufficient friction to stably and reliably restrict the water pump to a fixed height for a long time and prevent the water pump from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the external structure of the hydraulic clamp in the embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the hydraulic clamp in the embodiment of the present application.

[0026] Figure 3 It is a structural schematic diagram of the sliding frame in an embodiment of the present application.

[0027] Figure 4 It is a structural schematic diagram of the first guide rail and the first stop member in an embodiment of the present application.

[0028] Figure 5 It is a partial structural diagram of the hydraulic clamp in the embodiment of the present application.

[0029] Figure 6 It is a structural diagram of the mobile drainage equipment in the embodiment of the present application.

[0030] Figure numerals: hydraulic clamp 100, first direction x, second direction y, bracket 10, sliding frame 20, first guide rail 21, first recessed structure 211, second guide rail 22, second recessed structure 221, first stop member 30a, first groove 31a, first cylindrical pressure roller 32a, second stop member 30b, second groove 31b, second cylindrical pressure roller 32b, driving member 40, first driving surface 41, second driving surface 42, elastic member 50, hydraulic driving element 60, frame 71, walking mechanism 72, water pump assembly 73, driving device 74. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present application and, in conjunction with the accompanying drawings, further description of the technical solutions of the present application is provided, but the present application is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided solely to assist in a comprehensive understanding of the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope of protection of the present application. In addition, for clarity and brevity, descriptions of known functions and configurations have been omitted.

[0032] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0033] In mobile drainage equipment, a drive device can drive a water pump to change its position. During drainage, the drive device lowers the water pump into the water to perform drainage operations; during movement, the drive device drives the water pump back and maintains it at a fixed height. In existing mobile drainage equipment, it is difficult to stably limit the water pump to a fixed height for a long time relying solely on the drive device. To this end, the present application provides a hydraulic clamp that is connected between the vehicle frame and the water pump assembly. The hydraulic clamp can stably and reliably limit the water pump to a fixed height for a long time, preventing the water pump from falling.

[0034] refer to Figure 1-Figure 5 The hydraulic clamp 100 includes a bracket 10, a sliding frame 20, a stopper, a driving member 40, an elastic member 50, and a hydraulic driving element 60. The sliding frame 20 is slidably mounted on the bracket 10 and is limited by the bracket 10 to slide along a first direction x. The stopper includes a first stopper 30a and a second stopper 30b, and is slidably mounted on the bracket 10 and is limited by the bracket 10 to slide along a second direction y; the second direction y is perpendicular to the first direction x. The driving member 40 is inserted between the first stopper 30a and the second stopper 30b; the driving member 40 is provided with a first driving surface 41 and a second driving surface 42 on both sides thereof; the first driving surface 41 is located on the side close to the first stopper 30a, and the second driving surface 42 is located on the side close to the second stopper 30b; the first driving surface 41 and the second driving surface 42 are symmetrically inclined relative to the movement direction of the driving member 40.

[0035] The elastic member 50 acts on the driving member 40, causing the first driving surface 41 and the second driving surface 42 to push the first stop member 30a and the second stop member 30b, respectively, in opposite directions along the second direction y to press the sliding frame 20 in opposite directions, thereby limiting the sliding movement of the sliding frame 20. The hydraulic driving element 60 is used to drive the driving member 40 to overcome the elastic member 50 and disengage the first driving surface 41 and the second driving surface 42 from the first stop member 30a and the second stop member 30b, thereby allowing the sliding frame 20 to slide freely.

[0036] exist Figure 1 and Figure 2 The structure shown includes a first direction x, a second direction y, and a third direction z. When the first direction x is set to a vertical direction, the second direction y and the third direction z are both horizontal directions. The first direction x, the second direction y, and the third direction z are perpendicular to each other. Among them, the first direction x is the movement direction of the sliding frame 20, the second direction y is the movement direction of the first stop member 30a and the second stop member 30b, and the third direction z is the movement direction of the driving member 40.

[0037] refer to Figure 6 When the hydraulic clamp 100 is used in a mobile drainage system, the bracket 10 is connected to the vehicle frame 71, and the sliding frame 20 is connected to the water pump assembly 73. When the sliding frame 20 and bracket 10 of the hydraulic clamp 100 are restricted from sliding relative to each other, the water pump assembly 73 remains at a fixed height. When the sliding frame 20 and bracket 10 of the hydraulic clamp 100 are able to slide relative to each other, the drive device can drive the water pump assembly to change position.

[0038] Specifically, the driver 40 has a first driving surface 41 and a second driving surface 42 on either side. The first and second driving surfaces 41 and 42 are symmetrically inclined relative to the direction of movement of the driver 40. The first driving surface 41 is located on the side closest to the first stop 30a, and the second driving surface 42 is located on the side closest to the second stop 30b. As the elastic member 50 acts on the driver 40, the first driving surface 41 of the driver 40 pushes the first stop 30a against the carriage 20, while the second driving surface 42 of the driver 40 pushes the second stop 30b against the carriage 20. Furthermore, the first and second stoppers 30a, 30b are constrained by the bracket 10 to slide along a second direction y, while the carriage 20 is constrained by the bracket 10 to slide along a first direction x, which is perpendicular to the first direction x. When the first and second stoppers 30a, 30b press the carriage 20 in opposite directions, the friction between the first and second stoppers 30a, 30b, and the carriage 20 can restrain the carriage 20. In some embodiments, the contact surfaces of the first and second stoppers 30a, 30b with the carriage 20 are machined with roughened textures to increase the maximum friction between the first and second stoppers 30a, 30b, and the carriage 20. Furthermore, the specific types of the hydraulic drive element 60 and the elastic member 50 can be determined based on actual needs. In one embodiment, the hydraulic drive element 60 is a plunger cylinder with an oil port in its rodless chamber, and the elastic member 50 is a spring.

[0039] It should be understood that the first driving surface 41 and the second driving surface 42 are symmetrically inclined relative to the direction of movement of the driving member 40. Therefore, on the one hand, the driving member 40 can slide, causing the first driving surface 41 and the second driving surface 42 to push the first stop member 30a and the second stop member 30b in opposite directions, thereby compressing the sliding frame 20 in opposite directions. On the other hand, the first driving surface 41 and the second driving surface 42 are inclined surfaces. When the elastic member 50 acts on the driving member 40, the first stop member 30a and the second stop member 30b can compress the sliding frame 20. Furthermore, by arranging them at appropriate angles, the pressing force of the first stop member 30a and the second stop member 30b on the sliding frame 20 can be significantly greater than the elastic force applied by the elastic member 50 to the driving member 40. This allows the sliding frame 20 to obtain sufficient friction to stably and reliably retain the water pump at a fixed height for a long period of time, preventing the water pump from falling.

[0040] When the hydraulic drive element 60 drives the drive member 40 to overcome the elastic member 50 so that the first drive surface 41 and the second drive surface 42 are out of contact with the first stop member 30a and the second stop member 30b, the friction between the first stop member 30a and the second stop member 30b and the sliding frame 20 disappears, and the sliding frame 20 can slide freely.

[0041] refer to Figure 2The sliding frame 20 is provided with a first guide rail 21 and a second guide rail 22 facing each other. The first guide rail 21 and the second guide rail 22 are disposed within the bracket 10, and the outer surfaces of the first guide rail 21 and the second guide rail 22 form a sliding fit with the bracket 10. The area between the first guide rail 21 and the second guide rail 22 is the inner side, and the area outside the first guide rail 21 and the second guide rail 22 is the outer side. The first stop 30a and the second stop 30b are located between the first guide rail 21 and the second guide rail 22, with the first stop 30a located on one side of the first guide rail 21 and the second stop 30b located on the other side of the second guide rail 22.

[0042] The outer surface of the first guide rail 21 slides with the bracket 10, while the inner surface of the first guide rail 21 engages the first stopper 30a. The outer surface of the second guide rail 22 slides with the bracket 10, while the inner surface of the second guide rail 22 engages the second stopper 30b. As the elastic member 50 acts on the driver 40, the first driving surface 41 of the driver 40 pushes the first stopper 30a against the first guide rail 21. The second driving surface 42 of the driver 40 pushes the second stopper 30b against the second guide rail 22, thereby restraining the carriage 20.

[0043] Furthermore, as the elastic member 50 pushes the driving member 40 forward, the first driving surface 41 and the second driving surface 42 move toward each other. A hydraulic drive element 60 is positioned in front of the driving member 40 and can extend to push the driving member 40 backward, overcoming the elastic member 50. The driving member 40 can slide in the third direction z. When the elastic member 50 pushes the driving member 40 forward in the third direction z, the hydraulic drive element 60 pushes the driving member 40 backward, overcoming the elastic member 50 in the third direction z.

[0044] refer to Figure 2 In one embodiment of the present application, a first recessed structure 211 is provided on the inner surface of the first guide rail 21, and the first stopper 30a is shaped to match the first recessed structure 211. A second recessed structure 221 is provided on the inner surface of the second guide rail 22, and the second stopper 30b is shaped to match the second recessed structure 221. In this design, when the first stopper 30a is coupled to the first guide rail 21, the first recessed structure 211 can limit the first stopper 30a, thereby preventing the first stopper 30a from deflecting; when the second stopper 30b is coupled to the second guide rail 22, the second recessed structure 221 can limit the second stopper 30b, thereby preventing the second stopper 30b from deflecting.

[0045] In one embodiment of the present application, a first groove 31a is provided on the first stopper 30a, and a second groove 31b is provided on the second stopper 30b, near the inner side between the first stopper 30a and the second stopper 30b. A first cylindrical pressure roller 32a is mounted in the first groove 31a, and the first cylindrical pressure roller 32a can freely rotate within the first groove 31a. A second cylindrical pressure roller 32b is mounted in the second groove 31b, and the second cylindrical pressure roller 32b can freely rotate within the second groove 31b. The first driving surface 41 pushes the first stopper 30a against the sliding frame 20 via the first cylindrical pressure roller 32a. The second driving surface 42 pushes the second stopper 30b against the sliding frame 20 via the second cylindrical pressure roller 32b.

[0046] When the first driving surface 41 of the driving member 40 pushes the first stopper 30a to press the carriage 20 via the first cylindrical pressure roller 32a, the second cylindrical pressure roller 32b can freely rotate in the second groove 31b, effectively reducing the driving force required by the driving member 40. Similarly, when the second driving surface 42 of the driving member 40 pushes the second stopper 30b to press the carriage 20 via the second cylindrical pressure roller 32b, the second cylindrical pressure roller 32b can freely rotate in the second groove 31b, effectively reducing the driving force required by the driving member 40.

[0047] refer to Figure 6 The embodiment of the present application also provides a mobile drainage device, which includes: a frame 71, a traveling mechanism 72, a water pump assembly 73, a driving device 74, and the hydraulic clamp 100 provided in the previous section; the water pump assembly is rotatably connected to the frame 71, and the driving device is used to drive the water pump assembly to rotate; the hydraulic clamp 100 is connected between the frame 71 and the water pump assembly. When the hydraulic clamp 100 is applied to the mobile drainage device, the bracket 10 is connected to the frame 71, and the sliding frame 20 is connected to the water pump assembly 73. When the sliding frame 20 and the bracket 10 of the hydraulic clamp 100 are restricted from sliding relative to each other, the water pump assembly 73 remains at a fixed height. When the sliding frame 20 and the bracket 10 of the hydraulic clamp 100 are able to slide relative to each other, the driving device can drive the water pump assembly to change position.

[0048] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "multiple" means at least two, such as two, three, etc., unless otherwise clearly defined. It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprises" and / or "includes" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0050] The specific embodiments described herein are merely examples of the technical solutions of this application. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them with similar methods without departing from the scope defined by the claims of this application.

Claims

1. A hydraulic clamp, characterized in that: The hydraulic clamp comprises: Bracket; a sliding frame slidably mounted on the bracket and limited by the bracket to slide along a first direction; a stopper, comprising a first stopper and a second stopper, and slidably assembled on the bracket and limited by the bracket to slide along a second direction; the second direction is perpendicular to the first direction; a driving member inserted between the first stop member and the second stop member; the driving member is provided with a first driving surface and a second driving surface on both sides thereof; the first driving surface is located on a side close to the first stop member, and the second driving surface is located on a side close to the second stop member; the first driving surface and the second driving surface are symmetrically inclined relative to the movement direction of the driving member; an elastic member acting on the driving member to cause the first driving surface and the second driving surface to respectively push the first stopping member and the second stopping member to move in opposite directions along the second direction to press the sliding frame in opposite directions to limit sliding of the sliding frame; The hydraulic driving element is used to drive the driving member to overcome the elastic member so that the first driving surface and the second driving surface are out of contact with the first stopping member and the second stopping member, so as to allow the sliding frame to slide freely.

2. The hydraulic clamp according to claim 1, characterized in that: The sliding frame is provided with a first guide rail and a second guide rail facing each other, the first guide rail and the second guide rail are inserted into the bracket, and the outer surfaces of the first guide rail and the second guide rail form a sliding fit with the bracket; wherein the area between the first guide rail and the second guide rail is the inner side, and the area outside the first guide rail and the second guide rail is the outer side; The first stopper and the second stopper are located between the first guide rail and the second guide rail, and the first stopper is located on one side of the first guide rail, and the second stopper is located on one side of the second guide rail.

3. The hydraulic clamp according to claim 2, characterized in that: Along the direction in which the elastic member pushes the driving member forward, the first driving surface and the second driving surface move closer to each other; The hydraulic driving element is arranged in front of the driving member and can extend to push the driving member to overcome the elastic member and move backward.

4. The hydraulic clamp according to claim 2, characterized in that: A first recessed structure is provided on the inner surface of the first guide rail, and the first stopper is adapted to the shape of the first recessed structure; A second recessed structure is provided on the inner surface of the second guide rail, and the second stopper is adapted to the shape of the second recessed structure.

5. The hydraulic clamp according to claim 2, characterized in that: On the inner side between the first stopper and the second stopper, the first stopper is provided with a first groove, and the second stopper is provided with a second groove; a first cylindrical pressure roller is installed in the first groove, and the first cylindrical pressure roller can rotate freely in the first groove; a second cylindrical pressure roller is installed in the second groove, and the second cylindrical pressure roller can rotate freely in the second groove; The first driving surface pushes the first stopper to press the sliding frame through the first cylindrical pressure roller; the second driving surface pushes the second stopper to press the sliding frame through the second cylindrical pressure roller.

6. The hydraulic clamp according to claim 1, characterized in that: The contact surfaces of the first stopper, the second stopper and the sliding frame are processed with rough lines.

7. The hydraulic clamp according to claim 1, characterized in that: The hydraulic drive element is a plunger cylinder, and its rodless cavity is provided with an oil port.

8. A mobile drainage device, characterized in that: The mobile drainage equipment includes: a frame, a traveling mechanism, a water pump assembly, a driving device, and a hydraulic clamp as described in any one of claims 1 to 7; the water pump assembly is rotatably connected to the frame, and the driving device is used to drive the water pump assembly to rotate; the hydraulic clamp is connected between the frame and the water pump assembly.

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