CN218879301U - Anti-skid jack for mine - Google Patents
Anti-skid jack for mine Download PDFInfo
- Publication number
- CN218879301U CN218879301U CN202223561090.0U CN202223561090U CN218879301U CN 218879301 U CN218879301 U CN 218879301U CN 202223561090 U CN202223561090 U CN 202223561090U CN 218879301 U CN218879301 U CN 218879301U
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- jack
- contact plate
- bearing block
- shell
- antiskid
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Abstract
The utility model relates to the technical field of jacks, in particular to an anti-skidding jack for mines, which structurally comprises a jack, wherein an anti-skidding mechanism is arranged on the jack and comprises a shell, a mounting groove with an upward opening is arranged in the shell, a bearing block is arranged in the mounting groove, salient points are distributed on the bearing block, a contact plate is arranged on the bearing block, and a through hole corresponding to the positions of the salient points is arranged on the contact plate; the utility model discloses set up the contact plate on the slide bar, and set up the pretension spring between sliding tray and slide bar, apply the pretightning force through the pretension spring to between contact plate and the working face at the jack during operation, play skid-proof effect, simultaneously because the contact plate moves down for the shell, make the bump pass through-hole and working face contact, increase the roughness of jack at jack-up during operation contact surface, increase the frictional force between the contact surface, prevent the phenomenon of skidding to appear at jack-up during operation, play anti-skidding effect.
Description
Technical Field
The utility model belongs to the technical field of the jack technique and specifically relates to an antiskid jack is used in mine.
Background
When construction is carried out in a mine, mine tunnel collapse is a very serious accident, and a supporting part is usually required to be attached to the inner wall of a mine tunnel through a mine jack plate to support the inner wall of the mine tunnel in order to fix the mine and prevent the collapse. The existing jack is tensioned and supported through screw rod transmission and other mechanical structures, and because the mechanical connecting parts are in rigid connection, the jacking working face is easy to slide when the part is fatigued, the supporting effect is weakened, the supporting mechanism is made to lose efficacy, and certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art, the utility model discloses a realize through following technical scheme: an anti-skid jack for a mine comprises a jack, wherein an anti-skid mechanism is arranged on the jack;
the anti-skid mechanism comprises a shell, wherein an installation groove with an upward opening is formed in the shell, a bearing block is arranged in the installation groove, and salient points are distributed on the bearing block;
and a contact plate is arranged on the pressure bearing block, and a through hole corresponding to the position of the salient point is arranged on the contact plate.
As a further optimization of the technical scheme, an anti-skid layer is arranged outside the salient points.
As a further optimization of the present technical solution, the bump passes through the through hole.
As a further optimization of the technical solution, the top end of the salient point is higher than the top surface of the housing.
As a further optimization of the technical scheme, an opening is formed in the pressure bearing block, and a sliding rod extending into the opening is fixedly arranged on the bottom surface of the contact plate.
As a further optimization of the technical scheme, a fixed sleeve is fixedly arranged in the hole, a sliding groove is arranged in the fixed sleeve, the sliding groove is in sliding connection with the sliding rod, and a pre-tightening spring is fixedly arranged between the bottom end of the sliding rod and the bottom wall of the sliding groove.
Based on prior art, the utility model provides an antiskid jack is used in mine possesses following beneficial effect:
the contact plate is arranged on the sliding rod, the pre-tightening spring is arranged between the sliding groove and the sliding rod, the contact plate is driven to move upwards when the jack works, the contact plate is extruded to move downwards relative to the shell after being contacted with the working surface, the contact plate drives the sliding rod to move downwards to extrude the pre-tightening spring, and pre-tightening force is applied between the contact plate and the working surface through the pre-tightening spring, so that the anti-skidding effect is achieved;
simultaneously because the contact plate moves downwards for the shell for the bump passes through the through-hole and contacts with the working face, increases the roughness of jack at jack-up during operation contact surface, increases the frictional force between the contact surface, prevents to appear skidding phenomenon at jack-up during operation, plays anti-skidding effect.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is an external view of the present invention;
FIG. 2 is a schematic view of the present invention showing another aspect;
FIG. 3 is a schematic view of the anti-skid mechanism of FIG. 1 according to the present invention;
fig. 4 is a schematic view of the internal structure of the housing of fig. 3 according to the present invention;
figure 5 is a schematic view of the present invention at a in figure 4;
fig. 6 is a schematic view of the internal structure of the housing in embodiment 2 of the present invention;
fig. 7 is a schematic view of a bearing block in embodiment 2 of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The invention will be further described with reference to the following examples:
example 1
Referring to fig. 1 to 4, a first embodiment of the present invention, specifically, an anti-skid jack for mine, includes a jack 100, wherein the jack 100 is provided with an anti-skid mechanism 101;
the anti-skid mechanism 101 comprises a shell 102, wherein an installation groove 105 with an upward opening is formed in the shell 102, a bearing block 109 is arranged in the installation groove 105, and salient points 110 are distributed on the bearing block 109;
the pressure-bearing block 109 is provided with a contact plate 103, the contact plate 103 is provided with a through hole 111 corresponding to the position of the convex point 110, the convex point 110 is externally provided with an anti-skid layer 104, the convex point 110 penetrates through the through hole 111, and the top end of the convex point 110 is higher than the top surface of the shell 102.
The roughness of the contact surface of the jack during the jacking operation is increased through the convex points arranged on the bearing blocks, the friction force between the contact surfaces is increased, and the phenomenon of slipping during the jacking operation is prevented.
Example 2
Referring to fig. 5-6, a second embodiment of the present invention is based on the previous embodiment, and the difference is that an opening 112 is disposed in the bearing block 109, a sliding rod 108 extending into the opening 112 is fixedly disposed on the bottom surface of the contact plate 103, a fixing sleeve 107 is fixedly disposed in the opening 112, a sliding groove 113 is disposed in the fixing sleeve 107, the sliding groove 113 is slidably connected to the sliding rod 108, and a pre-tightening spring 106 is fixedly disposed between the bottom end of the sliding rod 108 and the bottom wall of the sliding groove 113.
Different from the previous embodiment, the contact plate 103 is arranged on the sliding rod 108, the pre-tightening spring 106 is arranged between the sliding groove 113 and the sliding rod 108, the shell 102 is driven to move upwards when the jack works, the shell 102 drives the contact plate 103 to move upwards, the contact plate 103 is squeezed to move downwards relative to the shell 102 after contacting with the working surface, the contact plate 103 drives the sliding rod 108 to move downwards to squeeze the pre-tightening spring 106, and pre-tightening force is applied between the contact plate 103 and the working surface through the pre-tightening spring 106, so that the anti-skidding effect is achieved;
meanwhile, as the contact plate 103 moves downwards relative to the housing 102, the salient points 110 pass through the through holes 111 to contact with the working surface, so that friction force is increased, and the anti-skid function is achieved.
The basic principle, the main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and only the descriptions in the above embodiments and the description are provided to illustrate the principles of the present invention, which can be realized in other specific forms without departing from the spirit or the basic features of the present invention, and there can be various changes and improvements, and such changes and improvements all fall within the protection scope of the present invention. The protection scheme of the utility model is based on the appended claims.
Claims (6)
1. The utility model provides an antiskid jack is used in mine, includes jack (100), its characterized in that: the jack (100) is provided with an anti-skid mechanism (101);
the anti-skid mechanism (101) comprises a shell (102), wherein an installation groove (105) with an upward opening is formed in the shell (102), a bearing block (109) is arranged in the installation groove (105), and salient points (110) are distributed on the bearing block (109);
the pressure-bearing block (109) is provided with a contact plate (103), and the contact plate (103) is provided with a through hole (111) corresponding to the salient point (110).
2. The mining antiskid jack of claim 1, wherein: an anti-slip layer (104) is arranged outside the salient points (110).
3. The mining antiskid jack of claim 1, wherein: the bump (110) penetrates through the through hole (111).
4. The mining antiskid jack of claim 1, wherein: the top end of the salient point (110) is higher than the top surface of the shell (102).
5. The mining antiskid jack of claim 1, wherein: an opening (112) is formed in the pressure bearing block (109), and a sliding rod (108) extending into the opening (112) is fixedly arranged on the bottom surface of the contact plate (103).
6. The mining antiskid jack of claim 5, wherein: fixed cover (107) have set firmly in trompil (112), be equipped with sliding tray (113) in fixed cover (107), sliding tray (113) with sliding rod (108) sliding connection, sliding rod (108) bottom with set firmly pretension spring (106) between sliding tray (113) diapire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223561090.0U CN218879301U (en) | 2022-12-30 | 2022-12-30 | Anti-skid jack for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223561090.0U CN218879301U (en) | 2022-12-30 | 2022-12-30 | Anti-skid jack for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218879301U true CN218879301U (en) | 2023-04-18 |
Family
ID=85938279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223561090.0U Active CN218879301U (en) | 2022-12-30 | 2022-12-30 | Anti-skid jack for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218879301U (en) |
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2022
- 2022-12-30 CN CN202223561090.0U patent/CN218879301U/en active Active
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