Column cap of single hydraulic prop

Abstract

The column cap of the single hydraulic prop comprises a supporting plate, a fixing sleeve, fixing screw holes and first limiting blocks, the fixing sleeve is fixed to the center of one side of the outer portion of the supporting plate, the fixing screw holes are formed in the periphery of the outer portion of the fixing sleeve, the first limiting blocks are fixed in the fixing sleeve, and the four sets of first limiting blocks are arranged in the fixing sleeve. The first limiting blocks are symmetrical about the center position of the fixing sleeve, and the fixing screw holes are symmetrical about the center position of the fixing sleeve. The first limiting block is arranged in the fixing sleeve, the groove matched with the first limiting block is formed in the top of the hydraulic supporting column, and the screw hole is formed in the hydraulic supporting column, so that when the column cap is installed, the first limiting block is matched with the groove of the hydraulic supporting column; and then a bolt penetrates through the fixed screw hole and is screwed into the screw hole in the hydraulic prop, so that the prop cap is not easy to loosen, and meanwhile, the hydraulic prop does not displace after being used for a long time.

Description

Technical Field

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

[0002] A 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. Single hydraulic props are composed of cylinder body, piston, valve and other parts. Among them, the three-way valve is the heart of the external injection type single hydraulic prop, which consists of a one-way valve, an unloading valve and a safety valve. The one-way valve is used to supply liquid to the single hydraulic prop, the unloading valve is used to unload the single hydraulic prop back to the prop, and the safety valve ensures that the single hydraulic prop has a constant resistance characteristic. A column cap is required for the single hydraulic prop, and the existing column cap is easy to loosen during installation. At the same time, the column cap is easy to shift when used for a long time. Utility Model Content

[0003] The utility model aims to provide a column cap of a single hydraulic support to solve the problem that the existing column cap proposed in the above background technology is easy to loosen during installation and easy to shift when used for a long time.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a column cap of a single hydraulic support, comprising a support plate, a fixing sleeve, a fixing screw hole and a first limit block, a fixing sleeve is fixed at the center position of one side of the outside of the support plate, fixing screw holes are opened around the outside of the fixing sleeve, a first limit block is fixed in the fixing sleeve, four groups of the first limit blocks are arranged inside the fixing sleeve, the first limit blocks are symmetrical about the center position of the fixing sleeve, and the fixing screw holes are symmetrical about the center position of the fixing sleeve.

[0005] Preferably, the cross section of the fixing sleeve is circular, the cross section of the supporting plate is rectangular, and the four corners of the supporting plate are rounded.

[0006] Preferably, a connecting piece is fixed to the other side of the outside of the support plate, and a fixing block is welded to one side of the outside of the connecting piece.

[0007] Preferably, four corners of the fixing block are provided with connecting screw holes, and the connecting screw holes are symmetrical about the center position of the fixing block.

[0008] Preferably, the fixing block is provided with limiting grooves, four groups of limiting grooves are arranged on the fixing block, and the cross-section of the limiting grooves is arc-shaped.

[0009] Preferably, a limiting member is fixed at a central position outside the fixing block, and a second limiting block is fixed outside the limiting member.

[0010] Preferably, four groups of the second limit blocks are arranged on the fixed block, and the second limit blocks are symmetrical about the center position of the limit piece. The column cap is provided with a limit piece and a second limit block, and the corresponding top plate has a shape that cooperates with the limit piece and the second limit block. Then, bolts are passed through the connecting screw holes and screwed into the top plate to install the top plate. The limit piece and the second limit block play a limiting role.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the LED street lamp with a protective cover has a reasonable structure and has the following advantages:

[0012] (1) By providing a rotating shaft, a driven gear, a driving gear, a rotating driving member and an infrared sensor, the device can automatically track people. Therefore, the existing street lamps do not have the automatic tracking function. Therefore, when in use, through the action of the rotating driving member, the rotating driving member can make the driving gear rotate, and then the driven gear rotates, and the driven gear will rotate the rotating shaft, and then the rotating shaft will make the lamp body rotate. When no one passes by the street lamp, the lamp body will rotate back and forth at regular intervals. When the infrared sensor detects that someone is passing by, the lamp body will rotate synchronously with the person until the person walks out of the lighting area, thereby increasing the illumination range of the light and reducing the number of street lamps installed.

[0013] (2) The illumination range of the street lamp is further increased by providing a reinforcing rod, a lamp body, a telescopic driving member, a support rod and a connecting rod. Therefore, when in use, by starting the telescopic driving member, the support rod can be moved, and then the support rod can be rotated around the axis on the connecting rod, and then the angle of the lamp body can be changed, so that the illumination range is changed, and the illumination range is further increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0015] Figure 2 It is a side view stereoscopic structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from the back;

[0017] Figure 4 This is a front view structural schematic diagram of the utility model;

[0018] Figure 5 It is a schematic diagram of the back structure of the utility model.

[0019] In the figure: 1, support plate; 2, fixing sleeve; 3, fixing screw hole; 4, first limit block; 5, connecting piece; 6, fixing block; 7, connecting screw hole; 8, limit piece; 9, second limit block; 10, limit groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides an embodiment: a column cap of a single hydraulic prop, comprising a support plate 1, a fixing sleeve 2, a fixing screw hole 3 and a first limiting block 4, a fixing sleeve 2 is fixed at the center position of one side of the outside of the support plate 1, fixing screw holes 3 are opened around the outside of the fixing sleeve 2, a first limiting block 4 is fixed in the fixing sleeve 2, four groups of the first limiting blocks 4 are arranged inside the fixing sleeve 2, the first limiting blocks 4 are symmetrical about the center position of the fixing sleeve 2, and the fixing screw holes 3 are symmetrical about the center position of the fixing sleeve 2;

[0022] The top of the hydraulic support has a groove that cooperates with the first limit block 4, and the hydraulic support is also provided with a screw hole. When the column cap is installed, the first limit block 4 cooperates with the groove of the hydraulic support, and then the bolt passes through the fixing screw hole 3 and is screwed into the screw hole on the hydraulic support, so that the column cap is not easy to loosen, and the liquid will not shift during long-term use;

[0023] The cross section of the fixing sleeve 2 is circular, the cross section of the supporting plate 1 is rectangular, the four corners of the supporting plate 1 are rounded, a connecting piece 5 is fixed to the other side of the outside of the supporting plate 1, and a fixing block 6 is welded to one side of the outside of the connecting piece 5;

[0024] The four corners of the fixing block 6 are provided with connecting screw holes 7, which are symmetrical about the center of the fixing block 6. The fixing block 6 is provided with limiting grooves 10. There are four groups of limiting grooves 10 on the fixing block 6, and the cross section of the limiting grooves 10 is arc-shaped.

[0025] A limiting member 8 is fixed at the center position outside the fixing block 6, and a second limiting block 9 is fixed outside the limiting member 8. Four groups of the second limiting blocks 9 are arranged on the fixing block 6, and the second limiting blocks 9 are symmetrical about the center position of the limiting member 8.

[0026] A limiting piece 8 and a second limiting block 9 are provided on the column cap, and the corresponding top plate has a shape that cooperates with the limiting piece 8 and the second limiting block 9. Then, bolts are passed through the connecting screw holes 7 and screwed into the top plate to install the top plate. The limiting piece 8 and the second limiting block 9 play a limiting role.

[0027] When the embodiment of the present application is in use, the fixing sleeve 2 is put on the hydraulic support, and then a groove that cooperates with the first limit block 4 is provided at the top of the hydraulic support, and a screw hole is also provided on the hydraulic support. When the column cap is installed, the first limit block 4 cooperates with the groove of the hydraulic support, and then the bolt passes through the fixing screw hole 3 and is screwed into the screw hole on the hydraulic support, so that the column cap is not easy to loosen, and the liquid will not shift during long-term use. Then a limit piece 8 and a second limit block 9 are provided on the column cap, and the corresponding top plate has a shape that cooperates with the limit piece 8 and the second limit block 9, and then the bolt passes through the connecting screw hole 7 and is screwed into the top plate, so that the top plate is installed. The limit piece 8 and the second limit block 9 play a limiting role. When the inside of the mine needs to be supported, the hydraulic support is raised to provide support.

Claims

1. A column cap of a single hydraulic prop, characterized in that: The invention comprises a support plate (1), a fixing sleeve (2), a fixing screw hole (3) and a first limiting block (4); the fixing sleeve (2) is fixed at a central position of one side of the outside of the support plate (1); the fixing screw holes (3) are arranged around the outside of the fixing sleeve (2); the first limiting block (4) is fixed in the fixing sleeve (2); four groups of the first limiting blocks (4) are arranged inside the fixing sleeve (2); the first limiting blocks (4) are symmetrical about the central position of the fixing sleeve (2); and the fixing screw holes (3) are symmetrical about the central position of the fixing sleeve (2).

2. The column cap of a single hydraulic prop according to claim 1, characterized in that: The cross section of the fixing sleeve (2) is circular, the cross section of the supporting plate (1) is rectangular, and the four corners of the supporting plate (1) are rounded.

3. The column cap of a single hydraulic prop according to claim 1, characterized in that: A connecting piece (5) is fixed to the other side of the outside of the support plate (1), and a fixing block (6) is welded to one side of the outside of the connecting piece (5).

4. The column cap of a single hydraulic prop according to claim 3, characterized in that: The four corners of the fixing block (6) are provided with connecting screw holes (7), and the connecting screw holes (7) are symmetrical with respect to the center position of the fixing block (6).

5. The column cap of a single hydraulic prop according to claim 4, characterized in that: The fixing block (6) is provided with limiting grooves (10), four groups of limiting grooves (10) are arranged on the fixing block (6), and the cross-section of the limiting grooves (10) is arc-shaped.

6. The column cap of a single hydraulic prop according to claim 5, characterized in that: A limiting member (8) is fixed at a central position outside the fixing block (6), and a second limiting block (9) is fixed outside the limiting member (8).

7. The column cap of a single hydraulic prop according to claim 6, characterized in that: Four groups of the second limiting blocks (9) are arranged on the fixed block (6), and the second limiting blocks (9) are symmetrical about the central position of the limiting member (8).

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