Single hydraulic prop

Abstract

The utility model relates to the technical field of hydraulic props, and discloses a single hydraulic prop which comprises a bottom plate, a cylinder body is fixedly connected to the middle of the top end of the bottom plate, a movable column is slidably connected into the cylinder body, a mounting plate is arranged at the top end of the movable column, a positioning hole is formed in the bottom end of the mounting plate, and a positioning rod is slidably connected into the positioning hole. The other end of the positioning rod is fixedly connected to the top end of the plunger, open grooves are formed in the two sides of the mounting plate, push blocks are slidably connected into the open grooves, mounting bases are fixedly connected to the bottom ends of the push blocks, fixing bases are connected to the other ends of the mounting bases through connecting rods, and fixing blocks are fixedly connected to the bottom ends of the fixing bases. According to the utility model, the mounting block is placed at the top end of the movable column, so that the positioning rod extends into the positioning groove, then the push block extends into the open groove, and the two fixing blocks extend into the groove, so that the connecting surface of the top end of the movable column and a support object is enlarged, and the supporting effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic props, in particular to a single hydraulic prop. Background Art

[0002] Single hydraulic prop refers to a single retractable prop that uses liquid pressure to generate working resistance and realizes lifting and unloading. Single hydraulic props are mainly divided into suspended type, double telescopic suspended type, DN internal injection type and fiberglass single hydraulic prop. Its structure is different from hydraulic support. It is matched with metal articulated top beam for ordinary mechanized coal mining face support; it can also be used for local areas of comprehensive mining face, such as end or temporary support.

[0003] When hydraulic props are used to support objects, the objects are often supported directly through live columns, which makes the contact surface of the support too small and may affect the support effect. Hydraulic props are mostly used on construction sites, so the horizontality of the supporting hydraulic props needs to be adjusted before use to prevent the supporting effect from being affected by the tilt of the hydraulic props during the support process. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a single hydraulic support, which solves the problem that when using hydraulic supports to support objects, the objects are often supported directly through live columns, so that the contact surface of the support is too small, which may affect the supporting effect. In addition, hydraulic supports are mostly used at construction sites, so the horizontality of the supporting hydraulic supports needs to be adjusted before use, so as to prevent the supporting effect from being affected by the tilt of the hydraulic supports during the supporting process.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a single hydraulic support, including a base plate, a cylinder body is fixedly connected to the middle part of the top of the base plate, a piston is slidably connected to the inside of the cylinder body, a mounting plate is arranged on the top of the piston, a positioning hole is provided at the bottom end of the mounting plate, a positioning rod is slidably connected to the inside of the positioning hole, the other end of the positioning rod is fixedly connected to the top of the piston, slots are provided on both sides of the mounting plate, push blocks are slidably connected to the inside of the slots, the bottom ends of the push blocks are fixedly connected to the mounting seats, the other end of the mounting seats is connected to the fixing seats via connecting rods, and the bottom ends of the fixing seats are fixedly connected to the fixing blocks.

[0006] As a further description of the above technical solution:

[0007] The four corners of the bottom plate are all threadedly connected with threaded rods, the other ends of the threaded rods are rotatably connected to the top plate, both sides of the top of the bottom plate are penetrated by pull rods, the other ends of the pull rods are connected to cones through push plates, and springs are arranged on the outside of the pull rods.

[0008] As a further description of the above technical solution:

[0009] A groove is provided on the outer side of the top end of the movable column, and both ends of the inner side of the groove are slidably connected with fixed blocks.

[0010] As a further description of the above technical solution:

[0011] Both sides of the inner side wall of the slot are provided with fixed slots, and sliding blocks are slidably connected inside the fixed slots. The sides of the sliding blocks close to each other are fixedly connected to the two sides of the push block respectively.

[0012] As a further description of the above technical solution:

[0013] One end of the spring is fixedly connected to both sides of the bottom end of the bottom plate, and the other end of the spring is fixedly connected to one side of the push plate close to the pull rod.

[0014] As a further description of the above technical solution:

[0015] A connecting rod is rotatably connected inside the mounting seat, and the other end of the connecting rod is rotatably connected to a fixing seat.

[0016] As a further description of the above technical solution:

[0017] The other ends of the pull rods are fixedly connected with a push plate, and the bottom ends of the push plates are fixedly connected with a plurality of evenly distributed cones.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the mounting block is placed on the top of the plunger, so that the positioning rod is extended into the positioning groove, and then the push block is extended into the slot, and the two fixing blocks are extended into the groove, so that the interface between the top of the plunger and the support is expanded, thereby enhancing the supporting effect.

[0020] 2. In the utility model, the threaded rod is rotated to move the top plate downward so as to adjust the horizontality of the bottom plate. When the adjustment is completed, the spring can be used to push the push plate downward so that the cone penetrates into the ground to fix the bottom plate and prevent it from tilting during the support process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front perspective view of a single hydraulic support proposed by the utility model;

[0022] Figure 2 This is a front perspective view of a pull rod of a single hydraulic support proposed by the utility model;

[0023] Figure 3This is a schematic diagram of the main three-dimensional structure of a cylinder body of a single hydraulic prop proposed by the utility model;

[0024] Figure 4 The utility model is a schematic diagram of a side-view stereoscopic cross-sectional structure of a mounting plate of a single hydraulic support.

[0025] Legend:

[0026] 1. Bottom plate; 2. Cylinder body; 3. Fixed block; 4. Mounting plate; 5. Push block; 6. Piston; 7. Threaded rod; 8. Spring; 9. Top plate; 10. Push plate; 11. Pull rod; 12. Cone; 13. Fixed seat; 14. Connecting rod; 15. Mounting seat; 16. Positioning rod; 17. Fixed groove; 18. Positioning hole; 19. Slot; 20. Recess; 21. Slider. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-4 The utility model provides an embodiment of a single hydraulic support, including a bottom plate 1, a cylinder body 2 is fixedly connected to the middle part of the top of the bottom plate 1, a piston 6 is slidably connected inside the cylinder body 2, a mounting plate 4 is arranged on the top of the piston 6, a positioning hole 18 is opened at the bottom of the mounting plate 4, a positioning rod 16 is slidably connected inside the positioning hole 18, the other end of the positioning rod 16 is fixedly connected to the top of the piston 6, both sides of the mounting plate 4 are opened with slots 19, the inside of the slots 19 are slidably connected with push blocks 5, the bottom ends of the push blocks 5 are fixedly connected to mounting seats 15, the other ends of the mounting seats 15 are connected to the fixing seats 13 through connecting rods 14, and the bottom ends of the fixing seats 13 are fixedly connected to the fixing blocks 3, the mounting plate 4 is fixed to the top of the piston 6 by the cooperation of the positioning rod 16 and the positioning hole 18, and the pushing block 5 is extended into the inside of the slot 19, and the fixing block 3 is pushed into the inside of the groove 20, so that the connecting rod 14 supports the mounting plate 4, thereby increasing the contact surface between the piston 6 and the support, thereby improving the supporting effect.

[0029] The four corners of the bottom plate 1 are all threadedly connected with threaded rods 7, and the other ends of the threaded rods 7 are rotatably connected with the top plate 9. Pull rods 11 are passed through both sides of the top of the bottom plate 1, and the other ends of the pull rods 11 are connected with cones 12 through push plates 10. Springs 8 are arranged on the outside of the pull rods 11. The threaded rods 7 are rotated to move the top plate 9 downward to adjust the horizontality of the bottom plate 1. At the same time, when the adjustment is completed, the springs 8 can be used to push the push plates 10 downward so that the cones 12 penetrate into the ground to fix the bottom plate 1 and prevent it from tilting during the support process. A groove 20 is opened on the side, and both ends of the inner side of the groove 20 are slidably connected with a fixing block 3, and the fixing block 3 is pushed into the groove 20 so that the connecting rod 14 supports the mounting plate 4, thereby increasing the contact surface between the piston 6 and the support, thereby improving the supporting effect. The two ends of the fixing block 3 on one side are fixedly connected with an insert block, and the two ends of the fixing block 3 on the other side are opened with a slot, and the insert block is extended into the slot, and the fixing pin passes through the slot and the insert block to fix the fixing block 3 to the inside of the groove 20. Both sides of the inner wall of the slot 19 are opened with a fixing groove 17, and the inside of the fixing groove 17 is The sliding connection is provided with a slider 21, and the sides of the sliders 21 close to each other are fixedly connected to the two sides of the push block 5 respectively. The push block 5 is fixed to the inside of the slot 19 through the cooperation of the fixing groove 17 and the slider 21. At the same time, the bolts are passed through both ends of the mounting plate 4 and the slider 21 and the push block 5 at the same time, so as to further strengthen the connection between the push block 5 and the slot 19. One end of the spring 8 is fixedly connected to both sides of the bottom end of the base plate 1, and the other end of the spring 8 is fixedly connected to the side of the push plate 10 close to the pull rod 11. The spring 8 is used to push the push plate 10 downward so that the cone 12 penetrates into the ground. Thereby, the base plate 1 is fixed to prevent it from tilting during the support process. The mounting seat 15 is rotatably connected to the connecting rod 14 inside, and the other end of the connecting rod 14 is rotatably connected to the fixed seat 13. The mounting plate 4 is supported by the cooperation of the fixed block 3, the fixed seat 13, the connecting rod 14, the mounting seat 15, and the push block 5. The other end of the pull rod 11 is fixedly connected to the push plate 10, and the bottom end of the push plate 10 is fixedly connected to a plurality of evenly distributed cones 12. The operation of the pull rod 11 can prevent the spring 8 from being deformed when the push plate 10 is pushed to move downward.

[0030] Working principle: Place the bottom plate 1 at the position where support is required, and move the top plate 9 downward by rotating the threaded rod 7 to adjust the horizontality of the bottom plate 1. At the same time, when the adjustment is completed, the spring 8 can be used to push the push plate 10 downward so that the cone 12 can penetrate into the ground to fix the bottom plate 1 to prevent it from tilting during the support process. Then the mounting block can be placed on the top of the piston 6 so that the positioning rod 16 can be extended into the positioning groove, and then the push block 5 can be extended into the slot 19, and the two fixing blocks 3 can be extended into the groove 20 to expand the interface between the top of the piston 6 and the support to enhance the support effect.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single hydraulic prop, comprising a bottom plate (1), characterized in that: The middle part of the top of the bottom plate (1) is fixedly connected with a cylinder body (2), and a piston (6) is slidably connected inside the cylinder body (2). A mounting plate (4) is arranged at the top of the piston (6), and a positioning hole (18) is provided at the bottom of the mounting plate (4). A positioning rod (16) is slidably connected inside the positioning hole (18), and the other end of the positioning rod (16) is fixedly connected to the top of the piston (6). Slots (19) are provided on both sides of the mounting plate (4), and push blocks (5) are slidably connected inside the slots (19). The bottom end of the push blocks (5) is fixedly connected with a mounting seat (15), and the other end of the mounting seat (15) is connected to a fixed seat (13) through a connecting rod (14), and the bottom end of the fixed seat (13) is fixedly connected with a fixed block (3).

2. A single hydraulic prop according to claim 1, characterized in that: The four corners of the bottom plate (1) are all threadedly connected to threaded rods (7), and the other ends of the threaded rods (7) are rotatably connected to the top plate (9). Pull rods (11) are passed through both sides of the top of the bottom plate (1), and the other ends of the pull rods (11) are connected to cones (12) through push plates (10). Springs (8) are arranged on the outside of the pull rods (11).

3. A single hydraulic prop according to claim 1, characterized in that: A groove (20) is provided on the outer side of the top end of the piston (6), and both ends of the inner side of the groove (20) are slidably connected with fixed blocks (3).

4. A single hydraulic prop according to claim 1, characterized in that: Both sides of the inner wall of the slot (19) are provided with fixed slots (17), and the inside of the fixed slots (17) are slidably connected with sliders (21), and the sides of the sliders (21) close to each other are fixedly connected to the two sides of the push block (5).

5. A single hydraulic prop according to claim 2, characterized in that: One end of the spring (8) is fixedly connected to both sides of the bottom end of the base plate (1), and the other end of the spring (8) is fixedly connected to one side of the push plate (10) close to the pull rod (11).

6. A single hydraulic prop according to claim 1, characterized in that: The interior of the mounting seat (15) is rotatably connected to a connecting rod (14), and the other end of the connecting rod (14) is rotatably connected to a fixing seat (13).

7. A single hydraulic prop according to claim 2, characterized in that: The other end of the pull rod (11) is fixedly connected to a push plate (10), and the bottom end of the push plate (10) is fixedly connected to a plurality of evenly distributed cones (12).

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