阅读说明：本技术 一种道路桥梁施工用安全防护栏 (Safety protective guard is used in road and bridge construction ) 是由 武俊刚 张思远 李作龙 金鹏 柳季 于 2021-10-08 设计创作，主要内容包括：本发明属于防护栏技术领域,尤其是一种道路桥梁施工用安全防护栏,针对现有技术中的防护栏的长度不便于更改的问题,现提出以下方案,包括两根开口同向且互相平行呈槽形结构的下横杆和上横杆,且上横杆和下横杆的端部均滑动连接有延伸滑杆,两个所述延伸滑杆的同一端固定有同一个端杆,且端杆的底端以及下横杆的下表面两端处均固定有滚轮,两个延伸滑杆之间固定有等距离分布呈弓形结构的防护杆。本发明能够在使用时,当防护栏的整体长度不够的时候,可以根据需要将两个滑动连接在横杆内的延伸滑杆根据需要的长度抽出,之后再将挂钩勾再另一个防护栏的端部的挂环中即可,从而使得装置的长度变换较为灵活。(The invention belongs to the technical field of protective guards, in particular to a safety protective guard for road and bridge construction, which aims at solving the problem that the length of the protective guard in the prior art is inconvenient to change. When the length of the guardrail is not enough, the two extending slide bars connected in the cross bar in a sliding mode can be pulled out according to the required length, and then the hook is hooked in the hanging ring at the end of the other guardrail, so that the length of the device can be changed flexibly.)

1. A safety protective guard for road and bridge construction comprises a lower cross rod (1) and an upper cross rod (9) which are provided with openings in the same direction and are parallel to each other and are of a groove-shaped structure, the end parts of the upper cross rod (9) and the lower cross rod (1) are connected with extension slide rods (10) in a sliding manner, the same end of each of the two extension slide rods (10) is fixed with the same end rod (14), the bottom ends of the end rods (14) and the two ends of the lower surface of the lower cross rod (1) are respectively fixed with a roller (15), the safety protective guard is characterized in that protective rods (5) which are distributed equidistantly and are of an arc-shaped structure are fixed between the two extension slide rods (10), support stop rods (6) which are distributed equidistantly and are parallel to each other are fixed between the upper cross rod (9) and the lower cross rod (1) through screws, hanging rings (8) are fixed at the top ends of all the support stop rods (6), and a lock chain (11) is clamped at the top ends of the end rods (14), and a hook (12) is fixed at one end of the chain (11) far away from the end rod (14), the size of the hook (12) is matched with that of the hanging ring (8), and a supporting mechanism is arranged on the outer wall of the supporting stop rod (6) close to the end part of the protective guard and close to the bottom end.

2. The safety guard rail for road and bridge construction according to claim 1, wherein the supporting mechanism comprises a supporting rod fixing table (4) sleeved on the outer wall of the supporting rod (6), a bottom supporting plate (2) is fixed at the bottom end of the supporting rod (6), a hexagonal sinking groove (42) is formed in one end, close to the opening of the bottom cross rod (1), of the upper surface of the supporting rod fixing table (4), inclined insertion holes (201) are formed in the bottom of the hexagonal sinking groove (42) and the upper surface of the bottom supporting plate (2) and are distributed coaxially, and inclined supporting rods (3) are inserted into the inclined insertion holes (201).

3. The safety guard rail for road and bridge construction according to claim 2, wherein a thread groove is reserved on the outer circumferential wall of the oblique supporting rod (3) close to the top end, a hexagonal nut (13) is embedded in the hexagonal sinking groove (42), the diameter of the thread groove is matched with the inner diameter of the hexagonal nut (13), a through rectangular hole (41) is formed in the upper surface of the supporting rod fixing table (4), and the size of the rectangular hole (41) is matched with the size of the cross section of the supporting blocking rod (6).

4. The safety guard rail for road and bridge construction as claimed in claim 2, wherein a hook hole (7) is formed at one end of the top end of the upper cross bar (9) far away from the hook (12), and the aperture of the hook hole (7) is matched with the size of the hook (12).

5. The safety guard rail for road and bridge construction according to claim 1, wherein a magnet is fixed at one side of the bottom end of the end rod (14) close to the bottom cross rod (1), a hidden groove matched with the magnet in shape is formed in the side surface of the bottom supporting plate (2), and an iron sheet is fixed at the bottom of the hidden groove.

6. The safety guard rail for road and bridge construction as claimed in claim 1, wherein second groove-shaped stop bars (20) are fixed between the upper cross bar (9) and the lower cross bar (1) and are distributed equidistantly, and the first groove-shaped stop bars (17) are clamped on the front surface of the second groove-shaped stop bars (20).

7. The safety guard rail for the road and bridge construction as claimed in claim 6, wherein both sides of the second groove-shaped stop bar (20) near the bottom end are both fixed with a positioning shaft (21), and the bottom end of the first groove-shaped stop bar (17) is both provided with a notch matched with the positioning shaft (21), the side of the second groove-shaped stop bar (20) near the top end is embedded with a positioning barrel (18), the inside of the positioning barrel (18) is slidably connected with a top head (19), both ends of the top head (19) are respectively provided with a round head and a compression spring (23), and the inner wall of the first groove-shaped stop bar (17) near the top end is provided with a groove matched with the top head (19).

8. The safety guard rail for road and bridge construction as claimed in claim 7, wherein the two extending sliding bars (10) are further fixed with equally spaced channel steel columns (16) at the side away from the groove bottom, the structures in the upper row of channel steel upright columns and the lower row of channel steel upright columns (16) are mutually symmetrical, one end of the inner part of the channel steel upright columns (16) close to the first groove-shaped stop rod (17) is connected with a tower-shaped sliding block (25) in a sliding way, and one side of the tower-shaped sliding block (25) far away from the bottom of the groove is fixed with a convex rod (27), the side of the two convex rods (27) on the same perpendicular bisector, which is back to each other, is provided with a notch (26) near the root, and one side of the two tower-shaped sliding blocks (25) opposite to each other is fixed with a return tension spring (24), the groove bottom of the channel steel upright post (16) is positioned at the end part of the return tension spring (24) and is fixed with a spring fixing plate, and the back surface of the groove-shaped stop lever I (17) close to the two ends is provided with jacks (22) matched with the diameters of the convex rods (27).

Technical Field

The invention relates to the technical field of protective guards, in particular to a safety protective guard for road and bridge construction.

Background

Road guardrails are broadly divided into four categories according to function: the road guardrail has the advantages that the road guardrail has the separation function, the stopping function, the warning function and the attractive function, when urban construction road construction is carried out, temporary construction guardrails need to be established, certain defects exist in the use of some road construction guardrails, firstly, the length of a single guardrail cannot be flexibly adjusted according to the requirement of on-site road construction, secondly, the assembled guardrails are easy to fall off, and therefore, a plurality of factors bring certain influence to the use process of people.

A road construction rail guard disclosed for CN210031629U through retrieving Chinese patent publication, including first stand, second stand and guardrail, the lower extreme welding of first stand has first bottom plate, the lower extreme welding of second stand has the second bottom plate, the outside welding of first stand has the connecting plate of two parallels, it has the bolt to peg graft in round hole and the round hole to have seted up on the connecting plate, the inboard of first stand and second stand all has welded the mounting panel, be equipped with the waist hole on the mounting panel, sliding connection has the round pin post that runs through in the waist hole. Although this device facilitates the length change of the guard rail to some extent, it reduces the impact strength of the guard rail and the overall protection height, and thus a new guard rail is required to overcome the above disadvantages.

Disclosure of Invention

The invention provides a safety protective guard for road and bridge construction, aiming at overcoming the problem that the length of the protective guard in the prior art is inconvenient to change.

In order to achieve the purpose, the invention adopts the following technical scheme: a safety protective guard for road and bridge construction comprises two lower cross rods and two upper cross rods, wherein the openings of the lower cross rods and the upper cross rods are in the same direction and are parallel to each other, the ends of the upper cross rods and the lower cross rods are in groove structures, extension slide rods are connected to the end portions of the upper cross rods and the lower cross rods in a sliding mode, the same end of each of the two extension slide rods is fixedly provided with a same end rod, rollers are fixedly arranged at the bottom ends of the end rods and the two ends of the lower surface of the lower cross rod, guard rods which are in arch structures are distributed at equal intervals are fixedly arranged between the two extension slide rods, support baffle rods which are distributed at equal intervals and are parallel to each other are fixedly arranged between the upper cross rods and the lower cross rods through screws, hanging rings are fixedly arranged at the top ends of all the support baffle rods, a lock chain is clamped at the top ends of the end rods, a hook is fixedly arranged at one end of the lock chain, the size of the hook is matched with the size of the hanging rings, a support mechanism is arranged at the outer wall, which is close to the end portions of the support baffle rods, close to the ends of the protective guard rails, therefore, when the device is used, when the whole length of the guard rail is not enough, the two extension slide bars which are connected into the cross bar in a sliding mode can be pulled out according to the required length, and then the hook is hooked in the hanging ring at the end of the other guard rail, so that the length of the device can be changed flexibly.

As a preferable scheme in the invention, the supporting mechanism comprises a supporting rod fixing table sleeved on the outer wall of the supporting baffle rod, a bottom supporting plate is fixed at the bottom end of the supporting baffle rod, a hexagonal sinking groove is formed in one end, close to the opening of the lower cross rod, of the upper surface of the supporting rod fixing table, inclined insertion holes are formed in the bottoms of the hexagonal sinking groove and the upper surface of the bottom supporting plate and are coaxially distributed, and inclined supporting rods are inserted in the inclined insertion holes.

As a preferable scheme in the invention, a thread groove is reserved on the outer wall of the circumference of the oblique supporting rod close to the top end, a hexagonal nut is embedded in the hexagonal sinking groove, the diameter of the thread groove is matched with the inner diameter of the hexagonal nut, a through rectangular hole is formed in the upper surface of the supporting rod fixing table, and the size of the rectangular hole is matched with the size of the cross section of the supporting rod, so that when the device is used, after two extending sliding rods are drawn out, the stability of the whole device is influenced, at the moment, the oblique supporting rod penetrates through the hexagonal nut and the oblique inserting hole simultaneously, and the end part can be inserted into the ground, so that the bearing area of the device is increased, and the stability of the device is improved.

As a preferable scheme in the invention, one end of the top end of the upper cross rod, which is far away from the hook, is provided with a hook hole, and the aperture of the hook hole is matched with the size of the hook, so that the hook can be hooked in the jack at the end part of the upper cross rod when the whole length needs to be pulled out in the butt joint process, so as to increase the whole length.

As a preferable scheme in the invention, a magnet is fixed at one side of the bottom end of the end rod close to the lower cross rod, a hidden groove matched with the magnet in shape is formed in the side surface of the bottom supporting plate, and an iron sheet is fixed at the bottom of the hidden groove, so that the end rod can be tightly adsorbed at the end part of the lower cross rod when being stored, and the two extending slide rods are prevented from accidentally sliding out.

As a preferable scheme in the invention, groove type blocking rods II which are distributed equidistantly are fixed between the upper cross rod and the lower cross rod, and the groove type blocking rods I are clamped on the front surfaces of the groove type blocking rods II.

As a preferable scheme in the invention, positioning shafts are fixed on two sides of the second groove-shaped blocking rod close to the bottom end, notches matched with the positioning shafts are formed in the bottom end of the first groove-shaped blocking rod, a positioning barrel is embedded in the side face of the second groove-shaped blocking rod close to the top end, a top head is connected inside the positioning barrel in a sliding mode, round heads and compression springs are arranged at two ends of the top head respectively, and a groove matched with the top head is formed in the inner wall of the first groove-shaped blocking rod close to the top end, so that the first groove-shaped blocking rod can be clamped on the outer wall of the second groove-shaped blocking rod when two extending sliding rods do not need to be drawn out, and the second groove-shaped blocking rod can be stably fixed under the combined action of the top head and the positioning shafts.

As a preferable scheme in the invention, the sides of the two extending slide bars, which are far away from the groove bottom, are also fixed with channel steel upright posts which are distributed at equal intervals, the structures in the upper and lower rows of channel steel upright posts are mutually symmetrical, one ends of the channel steel upright posts, which are close to the groove type stop bar I, are connected with tower type slide blocks in a sliding manner, one sides of the tower type slide blocks, which are far away from the groove bottom, are fixed with convex bars, the sides, which are opposite to each other, of the two convex bars on the same perpendicular bisector are close to the root part and are respectively provided with a clamping groove opening, the opposite sides of the two tower type slide blocks are respectively fixed with a reset tension spring, the groove bottom of the channel steel upright post, which is positioned at the end part of the reset tension spring, and the back of the groove type stop bar I is provided with inserting holes which are matched with the diameters of the convex bars, so that when the two extending slide bars are drawn out, the groove type stop bar I is only required to be taken out, and then the two ends of the groove stop bar I are respectively clamped on the clamping groove openings of the convex bars, this increases the blocking density and stability of the device.

To sum up, the beneficial effect in this scheme is:

1. according to the safety protective guard for road and bridge construction, the two extending slide rods which are connected in a sliding manner are arranged, so that when the whole length of the protective guard is insufficient during operation, the two extending slide rods which are connected in the cross rod in a sliding manner can be drawn out according to the required length, and then the hook is hooked into the hanging ring at the end part of the other protective guard, so that the length of the device can be flexibly changed;

2. according to the safety guard rail for road and bridge construction, after two extending slide bars are pulled out, the stability of the whole device is influenced, at the moment, the inclined support bar penetrates through the hexagon nut and the inclined insertion hole at the same time, and the end part can be inserted into the ground so as to increase the bearing area of the device and improve the stability of the device;

3. according to the safety guard rail for road and bridge construction, the positioning barrel embedded in the side face of the top end of the groove-shaped stop rod II and the convex rod arranged on the side face of the bottom end of the groove-shaped stop rod II are arranged, so that when two extending sliding rods are not required to be pulled out, the groove-shaped stop rod I is only required to be clamped on the outer wall of the groove-shaped stop rod II, and the groove-shaped stop rod II can be stably fixed under the combined action of the top head and the positioning shaft;

4. when the protective guard is used, after the two extension sliding rods are pulled out, the groove-shaped stop rod is taken out, and the two ends of the groove-shaped stop rod are clamped on the clamping groove openings of the convex rods respectively, so that the blocking density and the stability of the device are increased.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention;

FIG. 2 is a schematic view of an assembly structure according to a first embodiment of the present invention;

FIG. 3 is a schematic view of an assembly structure according to a second embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of the locking mechanism of the present invention;

FIG. 5 is a schematic perspective view of the auxiliary pull rod of the present invention after engagement;

fig. 6 is a schematic perspective view of the pulling mechanism of the present invention.

In the figure: the device comprises a lower cross bar 1, a bottom supporting plate 2, a 201 oblique inserting hole, a 3 oblique supporting bar, a 4 supporting bar fixing table, a 41 rectangular hole, a 42 hexagonal sinking groove, a 5 protective bar, a 6 supporting stop bar, a 7 hook hole, an 8 hanging ring, a 9 upper cross bar, a 10 extending sliding bar, a 11 chain, a 12 hook, a 13 hexagonal nut, a 14 end bar, a 15 roller, a 16 channel steel upright post, a 17 groove type stop bar I, a 18 positioning barrel, a 19 top head, a 20 groove type stop bar II, a 21 positioning shaft, a 22 inserting hole, a 23 compression spring, a 24 resetting tension spring, a 25 tower-shaped sliding block, a 26 clamping groove opening and a 27 convex bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-2, a safety guard rail for road and bridge construction comprises a lower cross bar 1 and an upper cross bar 9 with openings in the same direction and parallel to each other and in a groove structure, wherein the ends of the upper cross bar 9 and the lower cross bar 1 are connected with extension slide bars 10 in a sliding manner, the same end of each of the two extension slide bars 10 is fixed with a same end bar 14, the bottom ends of the end bars 14 and the two ends of the lower surface of the lower cross bar 1 are fixed with rollers 15, guard bars 5 in an arc structure are fixed between the two extension slide bars 10 in an equidistant manner, support bars 6 in an equidistant manner and parallel to each other are fixed between the upper cross bar 9 and the lower cross bar 1 through screws, hanging rings 8 are fixed at the top ends of all the support bars 6, a chain 11 is clamped at the top ends of the end bars 14, a hook 12 is fixed at one end of the chain 11 far away from the end bars 14, and the size of the hook 12 is matched with the size of the hanging rings 8, the outer wall of the supporting stop lever 6 close to the end part of the guard rail is provided with a supporting mechanism close to the bottom end, so that when the whole length of the guard rail is insufficient, two extending slide bars 10 connected in a cross bar in a sliding mode can be drawn out according to the required length according to the requirement, and then the hook 12 is hooked in the hanging ring 8 at the end part of another guard rail, so that the length of the device can be flexibly changed.

The supporting mechanism comprises a supporting rod fixing table 4 sleeved on the outer wall of the supporting rod retaining 6, a bottom supporting plate 2 is fixed at the bottom end of the supporting rod retaining 6, a hexagonal sinking groove 42 is formed in one end, close to the opening of the lower cross rod 1, of the upper surface of the supporting rod fixing table 4, oblique inserting holes 201 which are coaxially distributed are formed in the bottom of the hexagonal sinking groove 42 and the upper surface of the bottom supporting plate 2, and oblique supporting rods 3 are inserted into the oblique inserting holes 201.

Wherein, the circumference outer wall of down tube 3 is close to the top and has been reserved threaded groove, and hexagonal heavy groove 42 is embedded to be equipped with hexagon nut 13, the diameter of threaded groove and hexagon nut 13's internal diameter looks adaptation, and the upper surface of branch fixed station 4 is opened has the rectangular hole 41 that runs through, the size of rectangular hole 41 and the cross-sectional dimension looks adaptation that supports shelves pole 6, thereby can be when using, after two extension slide bars 10 are taken out, the stability of whole device will probably be influenced, pass hexagon nut 13 and oblique jack 201 with down tube 3 simultaneously this moment, can insert the tip again ground, with the bearing area of increase device, the stability of device has been improved.

Wherein, the top of last horizontal pole 9 is kept away from the one end of couple 12 and is opened and to have colluded hole 7, and colludes the aperture of hole 7 and the size looks adaptation of couple 12 to can be in the butt joint, when needing to take out whole length, can collude couple 12 in the jack 7 of last horizontal pole 9 tip, in order to increase holistic length.

Wherein, one side that the bottom of end rod 14 is close to sheer pole 1 is fixed with magnet, and the side of bottom plate 2 is opened has the camera obscura with magnet appearance looks adaptation, and the tank bottom of camera obscura is fixed with the iron sheet to can avoid two unexpected 10 roll-offs of extension slide bar with the tip of end rod 14 close absorption at sheer pole 1 when accomodating.

When the device is used, when the whole length of the guard rail is insufficient, two extension slide bars 10 which are connected with the upper cross bar 9 and the lower cross bar 1 in a sliding manner are drawn out according to the required length, and then the hook 12 is hooked in the hanging ring 8 at the end part of the other guard rail, so that the length of the device can be flexibly changed; meanwhile, after the two extension sliding rods 10 are drawn out, the stability of the whole device is influenced, at the moment, the inclined strut 3 penetrates through the hexagon nut 13 and the inclined insertion hole 201 at the same time, and the bottom end part of the inclined strut 3 is inserted into the ground, so that the bearing area of the device is increased, and the stability of the device is improved.

Example 2

Referring to fig. 3 to 6, in this embodiment, compared with embodiment 1, the safety guard rail for road and bridge construction further includes a second groove-shaped stop bar 20 fixed between the upper cross bar 9 and the lower cross bar 1 and distributed equidistantly, and the first groove-shaped stop bar 17 is fastened to the front surface of the second groove-shaped stop bar 20.

The positioning shafts 21 are fixed to two sides of the second groove-shaped blocking rod 20 close to the bottom end, notches matched with the positioning shafts 21 are formed in the bottom end of the first groove-shaped blocking rod 17, the positioning barrel 18 is embedded in the side face of the second groove-shaped blocking rod 20 close to the top end, the top 19 is connected to the inside of the positioning barrel 18 in a sliding mode, round heads and compression springs 23 are arranged at two ends of the top 19 respectively, grooves matched with the top 19 are formed in the inner wall of the first groove-shaped blocking rod 17 close to the top end, therefore, when two extension sliding rods 10 do not need to be drawn out, the first groove-shaped blocking rod 17 can be clamped on the outer wall of the second groove-shaped blocking rod 20 only, and the second groove-shaped blocking rod 20 can be stably fixed under the combined action of the top 19 and the positioning shafts 21.

Wherein, the channel steel upright posts 16 which are distributed equidistantly are fixed on one side of the two extending slide bars 10 which is far away from the groove bottom, the structures in the upper and lower rows of channel steel upright posts 16 are symmetrical, one end of the channel steel upright posts 16 which is near to the groove type stop lever I17 is connected with a tower type slide block 25 in a sliding way, one side of the tower type slide block 25 which is far away from the groove bottom is fixed with a convex lever 27, the side of the two convex levers 27 which are on the same perpendicular bisector and are back to each other is provided with a notch 26 near the root, the side of the two tower type slide blocks 25 which are back to each other is fixed with a return tension spring 24, the end part of the groove bottom of the channel steel upright post 16 which is located in the return tension spring 24 is fixed with a spring fixing plate, and the back of the groove type stop lever I17 is close to the two ends and is provided with jacks 22 which are matched with the diameter of the convex lever 27, thereby when in use, after the two extending slide bars 10 are drawn out, the groove type stop lever I17 is taken out, and the two ends are respectively clamped on the notch 26 of the convex lever 27, this increases the blocking density and stability of the device.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.