CN212562601U - Protective device for fixing hole - Google Patents
Protective device for fixing hole Download PDFInfo
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- CN212562601U CN212562601U CN202021167493.5U CN202021167493U CN212562601U CN 212562601 U CN212562601 U CN 212562601U CN 202021167493 U CN202021167493 U CN 202021167493U CN 212562601 U CN212562601 U CN 212562601U
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Abstract
The utility model discloses a protective device for fixing an opening, which comprises a plurality of protective rods which are uniformly arranged along the front side of the opening from top to bottom, wherein the two ends of each protective rod are provided with a U-shaped clamp used for clamping a wall body at the side of the opening, each U-shaped clamp comprises a first L-shaped support rod and a second L-shaped support rod which are symmetrically arranged and are in an L shape, each first L-shaped support rod and each second L-shaped support rod are composed of a long rod and a short rod, the long rods between the first L-shaped support rods and the second L-shaped support rods are detachably connected through slot structures, the short rods of the first L-shaped support rods are positioned at one side surface of the wall body of the opening, first ejector rods connected with the short rods of the first L-shaped support rods are transversely arranged in first gaps, and the end parts of the first ejector rods are provided with fastening structures which can be tightly; the short rod of the second L-shaped supporting rod is positioned on the other side surface of the hole wall body, a second ejector rod connected with the short rod of the second L-shaped supporting rod is transversely arranged in the second gap, and the end part of the second ejector rod is provided with a fastening structure which can be tightly propped against the other side surface of the hole wall body.
Description
Technical Field
The utility model relates to a building tool's technical field, concretely relates to protector of fixed entrance to a cave.
Background
Traditional entrance to a cave protection generally adopts steel pipe scaffold to set up and faces the limit and enclose and protect and form the protective body, and the protective body adopts expansion bolts to fix at original wall body usually, just so destroys original wall body easily, in addition, when demolising the protective body, needs cut expansion bolts, repairs expansion bolts's position again, also can increase work load like this.
In order to solve the technical problems, a chinese patent document (publication number CN 109610861A) discloses an adjustable protective cover plate for a temporary opening, which includes a cover plate, a steel fixture, a lock nut and a baffle plate; the shape of the cover plate is consistent with that of the temporary opening, the steel clamp is L-shaped, and holes are formed in two central axes of the cover plate and used for enabling the vertical section of the L-shaped steel clamp to penetrate out; the baffle and the cover plate are fixed at right angle.
The L-shaped steel clamp is clamped on the side wall of the hole, the L-shaped steel clamp penetrates through the through hole of the cover plate to be locked through the locking nut, the cover plate is fixed to form the protection of the temporary hole, however, the L-shaped steel clamp is tightly attached to the side face of the wall body of the hole, and when the L-shaped steel clamp is subjected to the acting force from top to bottom, the L-shaped steel clamp is easy to be stressed unstably, so that the cover plate falls down.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to prior art exists, the utility model aims to provide a protector of fixed entrance to a cave of stability keeps.
Solve the technical problem, the utility model discloses a following technical scheme:
a protection device for fixing a hole comprises a plurality of protection rods which are uniformly distributed along the front face of the hole from top to bottom, wherein U-shaped clamps for clamping a wall body on the side face of the hole are arranged at two ends of each protection rod, each U-shaped clamp comprises a first L-shaped supporting rod and a second L-shaped supporting rod which are symmetrically arranged and are L-shaped, each first L-shaped supporting rod and each second L-shaped supporting rod are composed of a long rod and a short rod, the long rods between the first L-shaped supporting rods and the second L-shaped supporting rods are detachably connected through slot structures, the short rods of the first L-shaped supporting rods are located on one side face of the wall body of the hole, a first gap is formed between each short rod and the side face, first ejector rods connected with the short rods of the first L-shaped supporting rods are transversely arranged in the first gaps, and fastening structures capable of being tightly propped against one side face of the wall body of the hole are arranged at the; the quarter butt of second L type branch is located the another side of entrance to a cave wall body, and has the second clearance between this side, transversely be equipped with the second ejector pin that links to each other with the quarter butt of second L type branch in the second clearance, second ejector pin tip be equipped with can with the tight fastening structure in another side top of entrance to a cave wall body, the second ejector pin with the connection can be dismantled to the fender rod, the fender rod with the setting of staggering of stock position of second L type branch.
The beneficial effects of the utility model reside in that:
the utility model discloses a first ejector pin and second ejector pin respectively with the tight stability of guaranteeing U type anchor clamps in wall body both sides face top, exert the same effort through first ejector pin and second ejector pin to wall body both sides face promptly, guarantee that the reaction force that first L type branch received with second L type branch is the same, again because link to each other through slot structure between the two and form U type anchor clamps, therefore, the effort that U type anchor clamps both sides received is impartial, guarantee the stable effect of U type anchor clamps, and simultaneously, owing to guarantee the centre gripping of first ejector pin and second ejector pin tip to wall body both sides face through fastening structure, consequently, its wall body side stress point is the face contact, make guardrail bar more firm.
Further, slot structure is including setting up the draw-in groove at the stock tip of first L type branch and setting up the card strip at the stock tip of second L type branch, the draw-in groove cooperatees with the card strip, the draw-in groove both sides are equipped with the bar and perforate, be equipped with on the card strip with the perforation corresponding through-hole of bar, during the installation, stock between first L type branch and the second L type branch is through passing the bar is perforated and is linked to each other with the bolt of through-hole.
The cooperation through draw-in groove and card strip is used, realizes the dismantlement of first L type branch and second L type branch and is connected, when needs installation, inserts the draw-in groove of the stock of first L type branch through the card strip of the stock tip of second L type branch promptly, realizes being connected of second L type branch and first L type branch, and the rethread bolt realizes firm the connection.
Furthermore, the fastening structure comprises a rotating cylinder sleeved on the first ejector rod or the second ejector rod, the rotating cylinder is in threaded connection with the first ejector rod or the second ejector rod, a pressing block used for being tightly pressed against the side face of the wall body is arranged at the end part, close to the side face of the wall body, of the first ejector rod or the second ejector rod, when the fastening structure is used, the rotating cylinder is moved to the pressing block, pressure is applied to the pressing block, the pressing block is tightly pressed against the side face of the wall body, and the first ejector rod or the second ejector rod is guaranteed to be stably connected with the side face of the wall body.
When the installation, when first ejector pin or second ejector pin offset with wall body both sides face respectively, the rotatory section of thick bamboo of operation realizes promptly that the rotary drum moves along first ejector pin or second ejector pin length direction, when the rotary drum removes to the compact heap, exerts pressure to the compact heap through the rotary drum, turns into frictional force through pressure and tightly pushes up the wall body side with it, guarantees that first ejector pin or second ejector pin and wall body side are connected firmly.
Furthermore, the end part, close to the side face of the wall body, of the first ejector rod or the second ejector rod is provided with an ejector block, the ejector block is connected with the pressing block, the side face, far away from the ejector block, of the pressing block is provided with at least one annular groove, a friction disc is embedded in the annular groove, and the friction disc is laid on the side face of the pressing block.
The friction disc is embedded in the annular groove in the side face of the pressing block, pressure is applied to the pressing block, meanwhile force is transferred to the friction disc, the pressure contact face of the friction disc and the side face of the wall body is large, connection is reliable, and the friction disc can be damaged and conveniently replaced after the structure is used for a long time.
Further, the outer side surface of the friction disc is provided with at least one annular friction groove. In use, the compressing block compresses the friction disc, friction is increased through the annular friction groove, and meanwhile, negative pressure is formed in the annular friction groove and can be firmly adsorbed on the wall surface, so that the installation is firmer.
Further, the friction disc is a rubber friction disc. Because the elasticity and the friction coefficient of the rubber are large, the friction force with the wall surface can be enhanced.
Compared with the prior art, the utility model has the advantages of as follows:
the utility model discloses a U type anchor clamps that first L type branch and second L type branch that are the symmetry and set up carry out the centre gripping to the wall body of entrance to a cave both sides, first ejector pin on the quarter butt through first L type branch, and the second ejector pin on the quarter butt of second L type branch, realize the support to the quarter butt of first L type branch and the quarter butt of second L type branch, and exert pressure through the compact heap of a rotatory section of thick bamboo on first ejector pin or second ejector pin, turn into frictional force with pressure, and then guarantee the firm of compact heap and wall body side and be connected, and simultaneously, because this connected mode does not need predetermine the hole on the wall again, therefore, the wall surface is also avoided impaired.
Drawings
Fig. 1 is a schematic structural view of the protection device for fixing the opening of the hole of the present invention.
Fig. 2 is a partial enlarged view of a portion at 1 in fig. 1.
Fig. 3 is an exploded view at a2 in fig. 1.
In the figure: the device comprises a hole 1, a first L-shaped supporting rod 2, a second L-shaped supporting rod 3, a first ejector rod 4, a second ejector rod 5, a protective rod 6, a clamping strip 7, a bolt 8, a clamping groove 9, a through hole 10, a strip-shaped through hole 11, a rotating cylinder 12, an ejector block 13 and a friction disc 14.
Detailed Description
The present invention will be described with reference to the accompanying drawings and examples.
In this embodiment: referring to fig. 1-3, a protector of fixed entrance to a cave, include along the entrance to a cave openly from last a plurality of fender rods 6 that are equipped with to the equipartition down, fender rod 6 both ends are equipped with the U type anchor clamps that are used for pressing from both sides tight entrance to a cave side wall body, U type anchor clamps are including symmetrical first L type branch 2 and the second L type branch 3 that sets up and be "L" type, first L type branch 2 and second L type branch 3 constitute by stock and quarter butt, the stock between first L type branch 2 and the 3 two of second L type branch passes through slot structure and can dismantle the connection.
The short rod of the first L-shaped support rod 2 is positioned on one side surface of the opening wall body, a first gap is formed between the short rod and the side surface, a first ejector rod 4 connected with the short rod of the first L-shaped support rod 2 is transversely arranged in the first gap, and a fastening structure capable of being tightly propped against one side surface of the opening wall body is arranged at the end part of the first ejector rod 4; the short rod of the second L-shaped supporting rod 3 is positioned on the other side surface of the opening wall body, a second gap is formed between the short rod and the side surface, a second ejector rod 5 connected with the short rod of the second L-shaped supporting rod 3 is transversely arranged in the second gap, and a fastening structure capable of being tightly jacked with the other side surface of the opening wall body is arranged at the end part of the second ejector rod 5.
Wherein, the width of quarter butt is the twice of the width of stock, its second ejector pin 5 is located the lower extreme of quarter butt, the stock of second L type branch 3 is located the upper end of quarter butt, make second ejector pin 5 be the setting of staggering with the position of the stock of second L type branch 3, again because second ejector pin 5 is threaded connection with the both ends of guard bar 6, consequently, the position of the stock of its guard bar 6 and second L type branch 3 also is the setting of staggering, and simultaneously, adopt threaded connection to be for the different guard bar 6 of convenient change size, in order to be adapted to not unidimensional entrance to a cave.
Through first ejector pin 4 and second ejector pin 5 respectively with the tight stability of guaranteeing U type anchor clamps in wall body both sides face top, exert the same effort through first ejector pin 4 and second ejector pin 5 to wall body both sides face promptly, guarantee that first L type branch 2 is the same with the reaction force that second L type branch 3 received, again because link to each other through slot structure between the two and form U type anchor clamps, therefore, the effort that U type anchor clamps both sides received is impartial, guarantee the stable effect of U type anchor clamps, and simultaneously, owing to guarantee the centre gripping of first ejector pin 4 and 5 tip of second ejector pin to wall body both sides face through fastening structure, consequently, its wall body side stress point is face contact, make guardrail bar more firm.
As preferred, slot structure is including setting up draw-in groove 9 at the stock tip of first L type branch 2 and setting up the card strip 7 at the stock tip of second L type branch 3, draw-in groove 9 cooperatees with card strip 7, draw-in groove 9 both sides are equipped with the bar and perforate 11, be equipped with on the card strip 7 with the corresponding through-hole 10 of the bar perforation 11, during the installation, stock between first L type branch 2 and the 3 two of second L type branch links to each other through the bolt 8 that passes the bar perforation 11 and through-hole 10.
Through the cooperation use of draw-in groove 9 with card strip 7, realize the dismantlement of first L type branch 2 and second L type branch 3 and be connected, when needs are installed, insert the draw-in groove 9 of the stock of first L type branch 2 through the card strip 7 of the stock tip of second L type branch 3 promptly, realize being connected of second L type branch 3 and first L type branch 2, rethread bolt 8 realizes firm the connection.
Preferably, the fastening structure comprises a rotating cylinder 12 sleeved on the first ejector rod 4 or the second ejector rod 5, the rotating cylinder 12 is in threaded connection with the first ejector rod 4 or the second ejector rod 5, a pressing block used for being tightly pressed against the side face of the wall body is arranged at the end part, close to the side face of the wall body, of the first ejector rod 4 or the second ejector rod 5, when the fastening structure is used, the rotating cylinder 12 is moved to the pressing block, pressure is applied to the pressing block, the pressing block is tightly pressed against the side face of the wall body, and the first ejector rod 4 or the second ejector rod 5 is guaranteed to be stably connected with the side face of the.
When the installation, when first ejector pin 4 or second ejector pin 5 offset with wall body both sides face respectively, the rotatory section of thick bamboo 12 of operation realizes promptly that rotatory section of thick bamboo 12 moves along first ejector pin 4 or second ejector pin 5 length direction, when rotatory section of thick bamboo 12 moved to the compact heap, applys pressure to the compact heap through rotatory section of thick bamboo 12, turns into frictional force through pressure and pushes up its tight wall body side face, guarantees that first ejector pin 4 or second ejector pin 5 and wall body side are connected firmly.
Preferably, the end part of the first ejector rod 4 or the second ejector rod 5 close to the side face of the wall body is provided with an ejector block 13, the ejector block 13 is connected with a pressing block, the side face of the pressing block far away from the ejector block 13 is provided with at least one annular groove, a friction disc 14 is embedded in the annular groove, and the friction disc 14 is laid on the side face of the pressing block.
The pressing block in the embodiment is of a hollow conical structure, the surface of the outer circle of the pressing block is in an inward concave arc shape, the friction disc 14 is embedded in the annular groove in the side face of the pressing block of the hollow conical structure, pressure is applied to the pressing block, force is transmitted to the friction disc 14, the pressure contact surface between the friction disc 14 and the side face of a wall body is large, connection is reliable, and the friction disc 14 can be damaged and conveniently replaced after the structure is used for a long time.
Preferably, the outer surface of the friction disc 14 is provided with at least one annular friction groove, in use, the pressing block presses the friction disc 14 to increase the friction force through the annular friction groove, and meanwhile, negative pressure is formed in the annular friction groove, so that the friction disc 14 can be firmly adsorbed on a wall surface and is installed more firmly, wherein the friction disc 14 is a rubber friction disc 14, and the friction force with the wall surface can be enhanced due to the elasticity and the friction coefficient of rubber.
Above-mentioned scheme adopts the U type anchor clamps that first L type branch 2 and second L type branch 3 that are the symmetry and set up to carry out the centre gripping to the wall body of entrance to a cave 1 both sides, first ejector pin 4 on the quarter butt through first L type branch 2, and second ejector pin 5 on the quarter butt of second L type branch 3, realize the support to the quarter butt of first L type branch 2 and the quarter butt of second L type branch 3, and exert pressure to the compact heap on first ejector pin 4 or the second ejector pin 5 through a rotatory section of thick bamboo 12, turn into frictional force with pressure, and then guarantee the firm connection of compact heap and wall body side, and simultaneously, because this connected mode need not predetermine the hole on the wall again, consequently, the wall surface damage has also been avoided.
The installation steps are as follows:
firstly, sequencing the protective rods 6 along the front surface of the opening 1 from top to bottom in sequence; then, the long rods of the first L-shaped supporting rod 2 and the second L-shaped supporting rod 3 penetrate through the hole, the clamping strip 7 at the end part of the long rod of the second L-shaped supporting rod 3 is inserted into the clamping groove 9 of the long rod of the first L-shaped supporting rod 2 to realize the connection of the second L-shaped supporting rod 3 and the first L-shaped supporting rod 2, and the stable connection is realized through the bolt 8, so that the first L-shaped supporting rod 2 and the second L-shaped supporting rod 3 form a U-shaped clamp, finally, the rotating cylinder 12 is operated to rotate, namely, the rotating cylinder 12 moves along the length direction of the first ejector rod 4 or the second ejector rod 5, when the rotary cylinder 12 moves to the pressing block, pressure is applied to the pressing block through the rotary cylinder 12, the pressure is converted into friction force to tightly push the pressing block against the side face of the wall body, and the first ejector rod 4 or the second ejector rod 5 is guaranteed to be stably connected with the side face of the wall body, so that the two ends of the protection rod 6 are fixedly connected with the wall body side face of the opening 1.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.
Claims (6)
1. A protective device for fixing a hole comprises a plurality of protective rods (6) which are uniformly distributed from top to bottom along the front surface of the hole, wherein the two ends of each protective rod (6) are provided with a U-shaped clamp used for clamping a wall body on the side surface of the hole, the protective device is characterized in that the U-shaped clamp comprises a first L-shaped supporting rod (2) and a second L-shaped supporting rod (3) which are symmetrically arranged and are L-shaped, each of the first L-shaped supporting rod (2) and the second L-shaped supporting rod (3) consists of a long rod and a short rod, the long rods between the first L-shaped supporting rod (2) and the second L-shaped supporting rod (3) are detachably connected through a slot structure, the short rod of the first L-shaped supporting rod (2) is positioned on one side surface of the wall body of the hole, a first gap is arranged between the short rod and the side surface, a first ejector rod (4) connected with the short rod of the first L-shaped supporting rod (2) is, the end part of the first ejector rod (4) is provided with a fastening structure which can be tightly propped against one side surface of the wall body of the hole; the quarter butt of second L type branch (3) is located the another side of entrance to a cave wall body, and has the second clearance between this side, transversely be equipped with second ejector pin (5) that link to each other with the quarter butt of second L type branch (3) in the second clearance, second ejector pin (5) tip be equipped with can with the another side tight fastening structure in top of entrance to a cave wall body, second ejector pin (5) with guard bar (6) can dismantle the connection, guard bar (6) with the setting of staggering of stock position of second L type branch (3).
2. The protection device for fixing hole according to claim 1, characterized in that said slot structure comprises a slot (9) at the end of the long rod of the first L-shaped support rod (2) and a clip strip (7) at the end of the long rod of the second L-shaped support rod (3), said slot (9) is matched with said clip strip (7), said slot (9) is provided with a strip-shaped through hole (11) at both sides, said clip strip (7) is provided with a through hole (10) corresponding to said strip-shaped through hole (11), when installed, the long rod between the first L-shaped support rod (2) and the second L-shaped support rod (3) is connected with the bolt (8) of said through hole (10) through said strip-shaped through hole (11).
3. The protection device for the fixed hole according to claim 1, wherein the fastening structure comprises a rotary cylinder (12) sleeved on the first ejector rod (4) or the second ejector rod (5), the rotary cylinder (12) is in threaded connection with the first ejector rod (4) or the second ejector rod (5), a pressing block used for pressing against the side face of the wall body is arranged at the end part, close to the side face of the wall body, of the first ejector rod (4) or the second ejector rod (5), and when the protection device is used, the rotary cylinder (12) is moved to the pressing block, pressure is applied to the pressing block, so that the pressing block presses against the side face of the wall body, and the first ejector rod (4) or the second ejector rod (5) is ensured to be stably connected with the side face of the wall body.
4. A fixed hole exit protector as claimed in claim 2 wherein the end of the first (4) or second (5) ram near the wall side is provided with a top block (13), the top block (13) is connected to a compression block, the compression block side remote from the top block (13) is provided with at least one annular groove, a friction disk (14) is embedded in the annular groove, and the friction disk (14) is laid on the compression block side.
5. A fixing hole guard according to claim 4, characterized in that the friction disc (14) is provided with at least one annular friction groove on its outer side surface.
6. A fixing hole guard according to any of claims 4 or 5, characterized in that said friction disc (14) is a rubber friction disc (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021167493.5U CN212562601U (en) | 2020-06-22 | 2020-06-22 | Protective device for fixing hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021167493.5U CN212562601U (en) | 2020-06-22 | 2020-06-22 | Protective device for fixing hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212562601U true CN212562601U (en) | 2021-02-19 |
Family
ID=74612036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021167493.5U Active CN212562601U (en) | 2020-06-22 | 2020-06-22 | Protective device for fixing hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212562601U (en) |
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2020
- 2020-06-22 CN CN202021167493.5U patent/CN212562601U/en active Active
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