CN210658398U

CN210658398U - Foundation pit protection device

Info

Publication number: CN210658398U
Application number: CN201921202826.0U
Authority: CN
Inventors: 王萌
Original assignee: Beijing Huaisheng Urban Construction And Development Co Ltd
Current assignee: Beijing Huaisheng Urban Construction And Development Co Ltd
Priority date: 2019-07-27
Filing date: 2019-07-27
Publication date: 2020-06-02
Anticipated expiration: 2029-07-27

Abstract

The utility model relates to the technical field of building construction, in particular to a foundation pit protection device, which is characterized by comprising a water retaining dam, a guardrail and a pillar, wherein the water retaining dam is placed around the ground of a foundation pit, the upper surface of the water retaining dam is provided with a groove with a convex cross section, the groove comprises an upper groove part and a lower groove part, the guardrail is arranged in the middle of the pillar, the foundation pit protection device also comprises a clamping mechanism fixed at the lower end of the pillar, the clamping mechanism comprises a base, a movable rod, a fixed frame and a traction rope, and the number of the bases is two; the number of the movable rods is two, the upper ends of the two movable rods are hinged, and the lower ends of the two movable rods are respectively hinged with the two bases; one end of the traction rope is connected with the hinged position of the two movable rods, the upper end of the fixing frame is fixed with the supporting column, the lower end of the fixing frame is rotatably connected with the base, and the two bases are clamped in the groove when rotating. Through the technical scheme, the support columns are connected and fixed in an inserting mode, and can be detached and mounted conveniently.

Description

Foundation pit protection device

Technical Field

The utility model relates to a construction technical field, in particular to foundation ditch protector.

Background

Provided is a foundation pit protective fence. The foundation pit protective fence is an effective protective facility for safe and civilized construction of a building site, and the national regulations require that the foundation pit protective fence is arranged around the foundation pit when the depth of the foundation pit exceeds 2 meters, the height of the foundation pit protective fence is not less than 1.2 meters, the distance between the foundation pit protective fences is not more than 2 meters, and the foundation pit protective fence is mainly divided into a vertical pipe foundation pit protective fence and a mesh foundation pit protective fence. The foundation pit protective guard is selected according to the requirements strictly in the construction site, the foundation pit protective guard suitable for the actual conditions of the construction site is selected, the foundation pit protective guard can only fully play a role, otherwise, the protective effect cannot be achieved, resources are wasted, and no benefit is provided.

For example, chinese patent "a foundation pit protector" with grant publication number CN208885035U, it includes the manger plate dam of arranging along the foundation pit periphery, protection machanism and dog, the manger plate dam upper surface is equipped with the bar recess that the cross section is the type of dogbone, the both ends of bar recess run through the both ends of manger plate dam, be equipped with a plurality of protection machanism that are connected in the bar recess, the both ends of bar recess are fixed with the dog that the cross section is the type of falling dogbone, the dog contacts with protection machanism, protection machanism is including being located the base that the cross section is the type of dogbone, fix the pole setting at the base both ends, the connecting rod of pole setting and the protection railing of a plurality of intervals settings are connected respectively to both ends, the connecting rod is located the upper end of pole setting.

However, when the protective device is installed, the base needs to be slid into the groove of the retaining dam, and the installation is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a foundation ditch protector, the device is for dismantling the setting, and installation procedure is simple, labour saving and time saving.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a foundation pit protection device comprises a water retaining dam, guardrails and pillars, wherein the water retaining dam is placed around the ground of a foundation pit, the upper surface of the water retaining dam is provided with a bar-shaped groove with a convex cross section, the bar-shaped groove comprises an upper groove part and a lower groove part which are communicated, the horizontal cross section of the upper groove part is smaller than that of the lower groove part, the number of the pillars is two, the guardrails are arranged between the two pillars, the foundation pit protection device also comprises a clamping mechanism fixed at the lower end of the pillars, the clamping mechanism comprises a base, a movable rod, a fixed frame and a traction rope, and the number of the; the number of the movable rods is two, the upper ends of the two movable rods are hinged, and the lower ends of the two movable rods are respectively hinged with the upper ends of the two bases; one end of the traction rope is connected with the hinged part of the upper ends of the two movable rods, and the other end of the traction rope is exposed; the utility model discloses a hinge base of base, including the base, the base is connected with the pivot, the mount upper end is fixed with the pillar, the lower extreme of mount is including two pivots, two the parallel recess length direction of pivot, two the pivot runs through the base respectively and rotates with the base to be connected, just the pivot runs through the height that base department is less than the articulated base department of movable rod, two when the base rotates with the pivot that corresponds the base, two the maximum distance of the base on the back of the body one side of the back of the body can be greater than the width of upper.

Through adopting above-mentioned technical scheme, pour the retaining dam subaerial, insert the bar recess with the bottom of pillar in, the haulage rope upwards stimulates, drives two movable rods and folds, drives two bases and parts to both sides, and the joint is inside slot part down, fixes the installation that can accomplish whole protector with the another of haulage rope, and the installation is simple and convenient to can be adapted to various installation environment.

The utility model discloses further set up to: the two supporting columns are internally provided with cavities, the two movable rods are arranged inside the supporting column cavities, and the upper half parts of the fixing frames are also fixed inside the supporting column cavities.

Through adopting above-mentioned technical scheme, movable rod and partial mount setting are inside the pillar, avoid movable rod and external contact, have reduced the probability that the articulated rotation department of movable rod looks rusted and damaged, and extension chucking mechanism's life can reduce foundation ditch protector's volume simultaneously, saves space after retrieving.

The utility model discloses further set up to: and the traction ropes hinged and connected with the upper ends of the two movable rods are arranged in the cavity of the strut, a rope outlet is formed in the strut, and the other ends of the traction ropes penetrate out of the rope outlet.

Through adopting above-mentioned technical scheme, the most setting of haulage rope is inside the pillar, avoids haulage rope and external contact, has reduced the possibility of haulage rope damage.

The utility model discloses further set up to: two pulleys are arranged at the position, close to the rope outlet, in the strut, and the traction rope passes through the rope outlet by bypassing the pulleys.

Through adopting above-mentioned technical scheme, the haulage rope walks around the pulley and wears out the pillar, and is comparatively laborsaving during the pulling haulage rope to avoid the direct contact with the metal pillar of haulage rope, reduce the wearing and tearing when haulage rope uses.

The utility model discloses further set up to: one end of the traction rope in the two struts, which penetrates out of the rope outlet, is connected to the pulling block.

Through adopting above-mentioned technical scheme, two haulage ropes are installed on pulling the piece, only need pull the piece and can spur two haulage ropes simultaneously, have saved the step and the time of installation.

The utility model discloses further set up to: and a first hook and a second hook are respectively arranged at two ends of the two hauling ropes penetrating out of the rope outlet, and the first hook and the second hook are hooked with the pulling block.

Through adopting above-mentioned technical scheme, be provided with the couple on the haulage rope, be detachable connection with the pulling block, made things convenient for foundation ditch protector's dismantlement and recovery.

The utility model discloses further set up to: the side of the pulling block is provided with a strip-shaped groove, a clamping piece is arranged above the pulling block and fixed on the guardrail, and the pulling block is fixed with the clamping piece in a clamping manner.

Through adopting above-mentioned technical scheme, pulling piece drives the haulage rope pulling back, can be fixed with pulling piece and joint piece joint, prevents the removal of haulage rope, has made things convenient for the step of installation.

The utility model discloses further set up to: and springs are arranged on the side faces, close to each other, of the two bases, and the springs are in a natural state when being arranged.

Through adopting above-mentioned technical scheme, install the spring on the side that two bases are close to each other, two bases open the back, and the spring is stretched, when needs dismantle protector, after relaxing the haulage rope, the spring can contract automatically, conveniently retrieves.

The utility model discloses further set up to: the top surfaces of the two bases are arranged in an inclined plane.

By adopting the technical scheme, the connection surface of the movable rod and the base is set to be an inclined surface, so that the movable rod drives the base to be opened more easily and conveniently.

To sum up, the utility model discloses following beneficial effect has:

insert the chucking mechanism of pillar below in the recess of manger plate dam, the pulling haulage rope is fixed can be with the chucking mechanism joint on the manger plate dam, and on the fixed manger plate dam of whole foundation ditch protector, high durability and convenient installation, simple step, the haulage rope walks around the pulley and the one end of haulage rope is equipped with the couple, the couple can be hooked on the pulling block, labour saving and time saving during the installation, convenient to detach, the chucking mechanism is installed inside the pillar with most spare part of haulage rope, make spare part long service life, it is not fragile, it is applicable in various operational environment.

Drawings

FIG. 1 is a schematic view of the overall structure of a foundation pit protection device;

FIG. 2 is a schematic top view of a pillar structure;

FIG. 3 is an exploded view of the overall structure of a foundation pit protection net;

FIG. 4 is an exploded view of the mechanism of FIG. 3 at the chucking mechanism;

FIG. 5 is an enlarged view of a portion of FIG. 3 showing the structure of the clamping mechanism at A;

FIG. 6 is a cross-sectional view of the overall construction of the foundation pit protection device;

FIG. 7 is a partial enlarged view of the pulley and rope outlet structure shown in FIG. 6 at B;

fig. 8 is a partial enlarged view of fig. 6 showing the structure of the pulling block and the clamping piece at C.

Reference numerals: 1. retaining water in a dam; 11. a strip-shaped groove; 111. an upper groove part; 112. a lower groove part; 2. a pillar; 21. a base plate; 22. a warning light; 23. a rope outlet; 24. a pulley; 231. a first rope outlet; 232; a second rope outlet; 213. perforating; 241. a first pulley; 241. a second pulley; 3. a guardrail; 4. a chucking mechanism; 41. a base; 42. a fixed mount; 43. a movable rod; 44. a hauling rope; 45. a pin; 46. a spring; 47. a rotating shaft; 411. a first base; 412. a second base; 421. a third fixing bar; 422. a fourth fixing bar; 423. a fifth fixing bar; 431. a first movable bar; 432. a second movable bar; 441. a first pull cord; 442. a second pull cord; 471. a first rotating shaft; 472. a second rotating shaft; 4111. a first bump; 4112. a first inclined plane; 4113. a first groove; 4114. a first fixing lever; 4115. a first seat block; 4121. a second bump; 4122. a second inclined plane; 4123. a second groove; 4124. a second fixing bar; 4125. a second seat block; 4311. a first pin hole; 4312. a second pin hole; 4321. a third pin hole; 4322. a fourth pin hole; 4411. a first hook; 4412. a second hook; 5. pulling the block; 51. a third groove; 52. a fourth groove; 53. a strip-shaped groove; 54. a first bolt hole; 511. a sixth fixing lever; 512. a seventh fixing lever; 6. a clip sheet; 61. a second bolt hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to the attached figure 1, the foundation pit protection net comprises a retaining dam 1 placed on the ground around a foundation pit, and two supporting columns 2 installed on the retaining dam 1. Two 2 intermediate couplings of pillar have guardrail 3, in order to remind constructor around the foundation ditch to notice safety, the centre of guardrail 3 still is equipped with warning sign 4.

The retaining dam 1 is formed by pouring concrete, and the retaining dam 1 can prevent the flowing and spreading of water. The upper surface of the retaining dam 1 is provided with a strip-shaped groove 11 with a convex cross section, and the strip-shaped groove 11 penetrates through the whole retaining dam 1 along the length direction of the retaining dam 1. The stripe-shaped groove 11 may be divided into an upper groove portion 111 and a lower groove portion 112. The upper groove portion 111 is located above the lower groove portion 112, and has a width smaller than that of the lower groove portion 112.

The pillar 2 is an elongated cylindrical body as a whole. The support post 2 is installed on the dam 1 perpendicular to the ground. The top of pillar 2 is equipped with warning light 22, and warning light 22 can be opened at night, reminds constructor to pay attention to the safety around the foundation ditch.

Referring to fig. 2, the bottom plate 21 is installed inside the pillar 2, the bottom plate 21 has a circular shape with the same diameter as the bottom surface of the pillar 2, and a through hole 213 is formed at the center of the bottom plate 21. The bottom end of the supporting column 2 is open, and a clamping mechanism 4 is arranged from the bottom plate 21 to the bottom end position of the supporting column 2.

Referring to fig. 3 and 4, the chucking mechanism 4 includes a base 41, a movable rod 43, and a traction rope 44.

The pulling rope 44 is divided into two pulling ropes, namely a first pulling rope 441 and a second pulling rope 442, one end of the pulling rope 44 is connected to the pin 45, and the pulling rope 44 is pulled upwards to drive the first movable rod 431 and the second movable rod 432 to close.

Referring to fig. 4, the movable lever 43 is composed of a first movable lever 431 and a second movable lever 432. A first pin hole 4311 and a second pin hole 4312 are respectively formed at both ends of the first movable rod 431. The second movable bar 432 has the same size and shape as the first movable bar 431, and both ends of the second movable bar 432 are provided with a third pin hole 4321 and a fourth pin hole 4322. The first pin hole 4311 and the third pin hole 4321 are overlapped, and a pin 45 is inserted into the first pin hole 4311 and the third pin hole 4321. The first movable rod 431 and the second movable rod 432 can be opened or closed by using the pin 45 as an axis.

A base 41 is mounted below the movable rod 43. The base 41 is divided into two parts, which are a first base 411 and a second base 412.

The first base 411 is "L" shaped, and includes a first protrusion 4111 and a first seat block 4115, wherein the first protrusion 4111 is disposed at a bottom end of the first seat block 4115. The top of the first block 4115 is a first inclined surface 4112, and one end of the first inclined surface 4112, which is close to the traction rope 44, is higher than the other end. The higher end of the first inclined surface 4112 is provided with a first groove 4113. A first fixing rod 4114 is fixed inside the first groove 4113 along the width direction of the first base 411. The second pin hole 4312 passes through the first fixing rod 4114, and the first movable rod 431 rotates to drive the first fixing rod 4114 to move and the first base 411 to move.

The second base 412 has the same shape and size as the first base 411 and is arranged symmetrically with the first base 411. The second base 412 includes a second seat block 4125 and a second tab 4121. The top of the second block 4125 is a second inclined surface 4122, and a second groove 4123 is formed at the higher end of the second inclined surface 4122. A first fixing lever 4124 is fixed inside the second groove 4123 in the width direction of the second base 412. The fourth pin hole 4322 passes through the second fixing rod 4124, and the second movable rod 432 rotates to drive the second fixing rod 4124 to move and drive the second base 412 to move.

A spring 46 is installed between the first base 411 and the second base 412. Both ends of the spring 46 are connected to both side surfaces of the first block 4115 and the second block 4125, respectively, which are close to each other, and the spring 46 is in a natural state when it is installed.

Referring to fig. 5, the fixing frame 42 is composed of two parts with identical size and shape, and is disposed on two sides of the base 41 symmetrically with the direction of the pulling rope 44 as an axis. The fixing frame 42 includes a third fixing rod 421, a fourth fixing rod 422 and a fifth fixing rod 423, and the three fixing rods of the third fixing rod 421, the fourth fixing rod 422 and the fifth fixing rod 423 are distributed in a triangle.

The third fixing rod 421 is shorter, the mounting position of the third fixing rod 421 is lower than the hinge joint of the movable rod 43 and the base 41, and two rotating shafts 47, namely a first rotating shaft 471 and a second rotating shaft 472, are respectively mounted at two ends of the third fixing rod. The first rotating shaft 471 and the second rotating shaft 472 are parallel to the width direction of the first chassis 411, and the first rotating shaft 471 penetrates through the first chassis 411 so that the first chassis 411 can rotate by the first rotating shaft 471; the second rotation shaft 472 penetrates the second base 412 so that the second base 412 can rotate about the second rotation shaft 472.

One ends of the fourth fixing rod 422 and the fifth fixing rod 423 are riveted with the third fixing rod 421, and the other ends of the fourth fixing rod 422 and the fifth fixing rod 423 are welded on the bottom plate 21, so as to form a stable bracket.

Referring to fig. 6 and 7, the pillar 2 is provided with two rope outlets 23, namely a first rope outlet 231 and a second rope outlet 232. The pulley 24 is arranged inside the pillar 2, the first pulley 241 is arranged inside the pillar 2 and close to the first rope outlet 231, the first traction rope 441 winds around the first pulley 241 and penetrates out of the pillar 2 through the first rope outlet 231, and the first hook 4411 is installed at one end of the first traction rope 441 penetrating out of the pillar 2.

A second pulley 242 is arranged inside the pillar 2 near the second rope outlet 232, the second traction rope 442 passes through the pillar 2 through the second rope outlet 232 around the second pulley 242, and a second hook 4412 is mounted at one end of the second traction rope 442 passing through the pillar 2.

Referring to fig. 7 and 8, a pulling block 5 is arranged below the guardrail 3, the pulling block 5 is a rectangular parallelepiped, a fifth groove 51 and a sixth groove 52 are formed at two ends of the pulling block 5 in the width direction, a sixth fixing rod 511 and a seventh fixing rod 512 are installed in the two grooves, the first hook 4411 can be fixed with the sixth fixing rod 511 by hooking, and the second hook 4412 can be fixed with the seventh fixing rod 512 by hooking.

The inside of pulling piece 5 is opened there is a bar groove 53, and the width of bar groove 53 is less than the length of pulling piece 5, and the length direction side of bar groove 53 runs through pulling piece 5. The side of the pull block 5 is provided with a plurality of first bolt holes 54, and the first bolt holes 54 penetrate through the entire pull block 5.

Referring to fig. 6 and 7, the clamping piece 6 is welded on the guardrail 3 and is positioned above the pulling block 5. The engagement piece 6 is a rectangular sheet having the same width as the strip-shaped groove 53, so that the engagement piece 6 can be engaged in the strip-shaped groove 53. The clamping plate 6 is provided with a second bolt hole 61, and the second bolt hole 61 is equal to the first bolt hole 54 in size.

The working principle is as follows:

at first pour retaining dam 1 subaerial, insert the bottom of pillar 2 in the bar recess 11, upwards pull up pull block 5, drive first haulage rope 441 and the upwards pulling of second haulage rope 422, drive first movable rod 431 and the closure of second movable rod 432, drive first base 411 and second base 412 and part to both sides, the card is inside slot part 112 down, simultaneously will pull the bar groove 53 on the block 5 relative with joint piece 6, it can accomplish whole protector's installation to twist the bolt on first bolt hole 54. When the support is disassembled, the bolt on the pulling block 5 is taken down, the pulling rope 44 retracts, the spring 46 between the first base 411 and the second base 412 retracts, and the support 2 can be taken out after the first base 411 and the second base 412 are closed, so that the disassembly is completed.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A foundation pit protection device comprises a water retaining dam (1), guardrails (3) and pillars (2), wherein the water retaining dam (1) is placed around the ground of a foundation pit, the upper surface of the water retaining dam (1) is provided with strip-shaped grooves (11) with convex cross sections, each strip-shaped groove (11) comprises an upper groove part (111) and a lower groove part (112) which are communicated with each other, the horizontal cross sections of the upper groove parts (111) are smaller than those of the lower groove parts (112), the number of the pillars (2) is two, the guardrails (3) are installed between the two pillars (2), the foundation pit protection device is characterized by further comprising clamping mechanisms (4) fixed at the lower ends of the pillars (2), each clamping mechanism (4) comprises a base (41), a movable rod (43), a fixed frame (42) and a traction rope (44), and the number of the bases; the number of the movable rods (43) is two, the upper ends of the two movable rods (43) are hinged, and the lower ends of the two movable rods (43) are respectively hinged with the upper ends of the two bases (41); one end of the traction rope (44) is connected with the hinged part of the upper ends of the two movable rods (43), and the other end of the traction rope (44) is exposed; mount (42) upper end is fixed with pillar (2), the lower extreme of mount (42) is including two pivot (47), two the parallel recess length direction of pivot (47), two pivot (47) run through base (41) respectively and rotate with base (41) and be connected, just pivot (47) run through the highly be less than articulated base (41) department of movable rod (43) of base (41) department, two when base (41) rotated with pivot (47) that correspond through base (41), two the maximum distance of base (41) one side of the back of the body mutually can be greater than the width of last slot part (111).

2. A foundation pit protection device according to claim 1, characterized in that the two pillars (2) are internally provided with a cavity, the two movable rods (43) are arranged in the cavity of the pillars (2), and the upper half part of the fixed frame (42) is also fixed in the cavity of the pillars (2).

3. A foundation pit protection device according to claim 2, characterized in that a pulling rope (44) which is hinged with the upper ends of the two movable rods (43) is arranged inside the cavity of the supporting column (2), a rope outlet (23) is arranged on the supporting column (2), and the other end of the pulling rope (44) penetrates out of the rope outlet (23).

4. A foundation pit protection device according to claim 3, characterized in that two pulleys (24) are arranged inside the column (2) near the rope outlet (23), and the pulling rope (44) passes through the rope outlet (23) by passing around the pulleys (24).

5. A foundation pit protection device according to claim 4, characterized in that the ends of the pulling ropes (44) in the two columns (2) which penetrate out of the rope outlet (23) are connected to the pulling block (5).

6. The foundation pit protection device according to claim 5, wherein a first hook (4411) and a second hook (4412) are respectively arranged at two ends of the two traction ropes (44) penetrating out of the rope outlet (23), and the first hook (4411) and the second hook (4412) are hooked with the pull block (5).

7. A foundation pit protection device according to claim 6, characterized in that a strip-shaped groove (53) is formed in the side surface of the pulling block (5), a clamping sheet (6) is arranged above the pulling block (5), the clamping sheet (6) is fixed on the guardrail (3), and the pulling block (5) can be clamped and fixed with the clamping sheet (6).

8. A foundation pit protection device according to claim 1, characterized in that springs (46) are mounted on the sides of the two bases (41) that are close to each other, said springs (46) being in a natural state when mounted.

9. A foundation pit protection device according to claim 8, characterized in that the top surfaces of the two bases (41) are bevelled.