Protective fence for constructional engineering

Abstract

The utility model discloses a protective fence for constructional engineering. The protective fence comprises a supporting frame and a protective fence body installed on the supporting frame. The protective fence comprises a first protective fence body, a second protective fence body and a connecting piece, the connecting piece comprises a lock rod piece and a lock seat, and the lock rod piece is movably connected with the lock seat in a matched mode; one end of the second guardrail is installed in the first guardrail in a sliding mode, the lock seat is installed at the other end of the second guardrail, and the lock rod piece is installed at the end, away from the lock seat, of the first guardrail. Wherein more than two protective fences are spliced through connecting pieces. The guardrail has the advantages that the length of the guardrail can be adjusted, the guardrail can be conveniently installed on the uneven ground, and two guardrails can be conveniently and rapidly spliced.

Description

Technical Field

[0001] The utility model relates to a protective device, in particular to a protective fence for construction engineering. Background Art

[0002] The protective fence used in construction projects is to ensure the safety of the construction site, prevent people and objects from falling from heights, and can also be used to restrict access to dangerous areas. For example, the Chinese patent (CN209942375U) discloses a safety protection fence for construction in its specification, including a fence frame, the upper side wall of the fence frame is provided with a plurality of through holes, the lower side wall of the fence frame is provided with a plurality of circular grooves with the same diameter as the through holes and located on the same vertical line, a protective rod is installed between the through holes and the circular grooves, the side wall of the fence frame is fixedly welded with a first connecting block up and down, each first connecting block is provided with a through groove with the same diameter in the middle, the other side wall of the fence frame is fixedly welded with a second connecting block up and down, the lower end of the second connecting block is fixedly installed with a bolt, the bolt passes through the through groove on the adjacent fence frame and extends out of the bottom of the through groove, and the lower end outer wall of the bolt is threaded with a nut. It can be seen that the length obtained by aligning and splicing two fence frames is not adjustable. Utility Model Content

[0003] The utility model aims to solve the shortcomings of the prior art and provide a protective fence for construction engineering with adjustable splicing length and adaptability to uneven ground.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A protective fence for construction projects, comprising a support frame and a protective fence installed on the support frame; the protective fence comprises a first guardrail, a second guardrail and a connecting piece, the connecting piece comprises a locking rod and a locking seat, and the locking rod is movably connected to the locking seat; one end of the second guardrail is slidably installed in the first guardrail, and the other end is installed with the locking seat, and the locking rod is installed on the end of the first guardrail away from the locking seat; wherein, more than two guardrails are spliced ​​by connecting pieces.

[0006] Furthermore, the utility model provides a protective fence for construction projects which also includes a baffle. A baffle is installed on one end of the second guardrail inserted into the first guardrail, and the baffle limits the second guardrail from extending outward and moving away from the first guardrail.

[0007] Furthermore, protrusions are provided at both ends of the baffle, and guide grooves are provided at the top and bottom of the first guardrail, and the protrusions are inserted into the corresponding guide grooves.

[0008] Furthermore, the locking rod member includes a tail wing, on which is mounted at least one locking rod which is embedded in the end surface of the first guardrail and can slide along the end surface of the first guardrail, and the locking rod is movably connected to the lock seat; and a compression spring, one end of which is mounted on the end surface of the first guardrail and the other end is connected to the tail wing.

[0009] Furthermore, the lock seat is a cylinder.

[0010] Furthermore, a slide groove is provided on the end surface of the first guardrail, and the tail wing is embedded in the slide groove and can slide along the length direction of the slide groove.

[0011] Furthermore, the utility model provides a protective fence for construction projects, which also includes a first support, a second support, a support seat and a guide support, wherein the first support is installed on the end face of the first guardrail, and the second support is installed on the tail wing, wherein the first support and the second support are used to install a compression spring; the support seat is installed on the tail wing for installing a locking rod; the guide support is installed on the end face of the first guardrail, has a guide hole, and is sleeved on the corresponding locking rod through the guide hole.

[0012] Furthermore, the support frame includes a support rod, a support tube and a mounting plate, the support rod can be vertically adjusted and mounted on the support tube, and the support tube is mounted on the mounting plate.

[0013] Furthermore, the utility model provides a protective fence for construction projects which also includes an insertion rod and a tension spring. A plurality of insertion holes are spaced apart in the height direction of the support rod. The tension spring is installed on the side of the support tube. One end of the insertion rod is connected to the tension spring, and the other end is provided with a tension spring which is inserted into a hole on the support tube and the support rod.

[0014] Furthermore, reflective panels are provided on both sides of the first guardrail and the second guardrail.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model has an adjustable splicing length. That is, the second guardrail slides inside the first guardrail, and the two guard plates are conveniently connected together through a connecting piece, so that the guardrail can be flexibly adjusted as needed to adapt to engineering sites of different shapes and sizes, and can more effectively utilize materials, reduce waste, and reduce costs.

[0017] 2. After the support tube of the utility model slides to a suitable position on the support rod, the support tube is fixed to the support rod by an insertion rod, which makes it easy to install the guardrail on an uneven ground, enhances the stability of the guardrail, reduces the difficulty of installation, and improves its applicability and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1 The utility model is a structural schematic diagram of a protective fence for construction engineering.

[0020] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the support frame in the utility model.

[0022] Figure 4 It is a schematic diagram of the local structure of the connecting piece in the utility model.

[0023] Figure 5 It is a structural schematic diagram of the baffle on the second guardrail in the utility model being slidably installed on the first guardrail.

[0024] Reference numerals and corresponding component names in the figures:

[0025] 1-support frame, 11-support rod, 111-jack, 12-support tube, 13-mounting plate, 14-insertion rod, 15-tension spring, 2-guardrail, 21-first guardrail, 210-guide groove, 211-slide groove, 22-second guardrail, 221-baffle, 2211-protrusion, 23-connecting piece, 231-lock seat, 232-tail wing, 233 compression spring, 234-first support, 235-second support, 236-guide support, 2361-guide hole, 237-support seat, 238-lock rod, 24-reflector. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 5As shown, a protective fence for construction projects includes a support frame 1 and a protective fence 2 installed on the support frame 1; the protective fence 2 includes a first guardrail 21, a second guardrail 22 and a connecting piece 23, the connecting piece 23 includes a locking rod and a locking seat 231, and the locking rod and the locking seat 231 are movably connected; one end of the second guardrail 22 is slidably installed in the first guardrail 21, and the other end is installed with the locking seat 231, and the end of the first guardrail 21 away from the locking seat 231 is installed with a locking rod; wherein, more than two protective fences 2 are spliced ​​by connecting pieces 23.

[0028] like Figure 1 , 2 As shown, support frames 1 are installed at the bottom of both ends of the first guardrail 21, and a support frame 1 is installed at the bottom of one end of the second guardrail 22 extending out of the first guardrail.

[0029] It should be noted that one end of the second guardrail is movably received in the first guardrail 21 and can be stretched and contracted relative to the first guardrail.

[0030] During stretching, the second guardrail 22 is stretched outward relative to the first guardrail 21, so that the length of the second guardrail outside the first guardrail is increased, thereby increasing the total length of the connection between the second guardrail and the first guardrail.

[0031] When retracting, the second guardrail 22 is retracted inwardly relative to the first guardrail 21, so that the length of the second guardrail outside the first guardrail is reduced, thereby reducing the total length of the connection between the second guardrail and the first guardrail.

[0032] The connecting piece 23 can facilitate splicing of two guardrails. When splicing, one end of the locking rod installed on one guardrail corresponds to the end of the locking seat 231 installed on the other guardrail. The locking rod is inserted into the locking seat to realize splicing of the two guardrails, which can improve the convenience of splicing between guardrails.

[0033] The second guardrail of the utility model is retracted into the first guardrail, and the length of the guardrail can be flexibly adjusted. Therefore, when two or more guardrails are spliced, the splicing length can be adjusted as needed; and the connecting piece can facilitate the rapid splicing of the two guardrails, thereby improving the splicing efficiency.

[0034] In some embodiments of the present disclosure, in order to prevent the second guardrail from being separated from the first guardrail, a baffle 221 is additionally installed. Figure 5 As shown, a baffle 221 is installed on one end of the second guardrail 22 inserted into the first guardrail 21 , and the baffle 221 limits the second guardrail 22 from extending outward and moving away from the first guardrail 21 .

[0035] In some embodiments of the present disclosure, a structure of a baffle is provided. Figure 5As shown, protrusions 2211 are provided at both ends of the baffle 221 , and guide grooves 210 are provided at the top and bottom of the first guardrail 21 , and the protrusions 2211 are inserted into the corresponding guide grooves 210 .

[0036] The projection 2211 forms a shoulder with the end surface of the baffle plate 221. When the projection is inserted into the guide slot, the end surfaces of the baffle plate on both sides of the projection contact the first guardrail 21. The projection can slide along the length direction of the guide slot.

[0037] Movement of the second guardrail:

[0038] Stretching: Pull the second guardrail 22 outward from the first guardrail 21 to stretch the second guardrail. When the second guardrail is pulled, the second guardrail pulls the baffle 221, and the baffle 221 moves along the length direction of the first guardrail under the action of the protrusion. When the protrusion moves to the end face of the guide groove, the end face of the guide groove blocks further movement along the first guardrail, thereby preventing the second guardrail from falling off the first guardrail.

[0039] Contraction: Push the second guardrail 22 toward the first guardrail 21 , and the second guardrail 22 can move inward and contract along the first guardrail 21 under the action of the baffle.

[0040] In some embodiments of the present disclosure, a structure of a locking rod is provided, such as Figure 4 As shown, the lock rod member includes a tail wing 232 and a compression spring 233. At least one lock rod 238 is installed on the tail wing 232, embedded in the end surface of the first guardrail 21, and can slide along the end surface of the first guardrail 21, and the lock rod 238 is movably connected with the lock seat 231; one end of the compression spring 233 is installed on the end surface of the first guardrail 21, and the other end is connected to the tail wing 232.

[0041] When two guardrails are spliced, they are connected by connecting pieces, and the splicing method is: the locking rod on one guardrail is connected with the locking seat on the other guardrail. That is, one end of the guardrail with the locking rod installed corresponds to the end of the other guardrail with the locking seat installed. When installing, the tail 232 is pushed upward, and the tail 232 moves along the end surface of the guardrail while squeezing the compression spring 233, so that the compression spring 233 is compressed and deformed, and has elastic deformation potential energy. When the locking rod 232 on the tail wing exceeds the top surface of the locking seat, the guardrail is moved so that the locking rod and the locking seat are vertically aligned, and then the tail 232 is released. The tail 232 moves downward under its own gravity and the push of the compression spring 233, driving the locking rod 238 to insert into the locking seat, so as to achieve the splicing of the two guardrails.

[0042] It is understandable that the compression spring supports the tail wing 232, which can limit the sliding of the tail wing 232, thereby allowing the lock rod to be stably inserted into the lock seat, preventing the lock rod from being separated from the lock seat.

[0043] In some embodiments of the present disclosure, in order to facilitate the matching connection between the lock rod and the lock seat, such as Figure 1 and 2 As shown, the lock seat 231 is a cylinder. The cylinder can be a cylindrical structure, which is convenient for the lock rod to be inserted.

[0044] In some embodiments of the present disclosure, a sliding connection structure between the tail wing and the first guardrail is provided. Figure 4 As shown, a slide groove 211 is formed on the end surface of the first guardrail 21 , and the tail wing 232 is embedded in the slide groove 211 and can slide along the length direction of the slide groove 211 .

[0045] The tail wing 232 is slidably connected to the first guardrail through the sliding groove 211.

[0046] One type of sliding connection between the tail wing and the slideway is a dovetail groove matching connection. The slideway can be a dovetail groove, so that the slideway can restrict the tail wing to the end surface of the first guardrail.

[0047] In some embodiments of the present disclosure, Figure 4 As shown, a first support 234, a second support 235, a support seat 237 and a guide support 236 are additionally installed. The first support 234 is installed on the end surface of the first guardrail 21, and the second support 235 is installed on the tail 232, wherein the first support 234 and the second support 235 are used to install the compression spring 233; the support seat 237 is installed on the tail 232, and is used to install the lock rod 238; the guide support 236 is installed on the end surface of the first guardrail 21, and is provided with a guide hole 2361, and is sleeved on the corresponding lock rod 238 through the guide hole 2361.

[0048] It should be noted that the guide support 236 does not affect the tail wing sliding along the end surface of the first guardrail. When the two guardrails are spliced, the tail wing 232 is pushed upward, and the tail wing 232 drives the locking rod to move upward from the guide support 236, squeezing the compression spring 233, and the compression spring 233 undergoes elastic deformation. When the end surface of the locking rod 238 is placed in the guide hole 2361, the guide support 236 is overlapped on the top surface of the locking seat on the other guardrail, and the guide hole 2361 is aligned with the locking seat, and the tail wing 232 is released. The tail wing 232 moves downward under its own weight and the driving force of the compression spring, driving the locking rod 238 to be inserted into the locking seat, and the two guardrails can be spliced.

[0049] In some embodiments of the present disclosure, a structure of a support frame is provided. Figure 1 , 2 As shown in FIGS. 3 and 5 , the support frame 1 includes a support rod 11 , a support tube 12 and a mounting plate 13 . The support rod 11 can be vertically adjusted and mounted on the support tube 12 , and the support tube 12 is mounted on the mounting plate 13 .

[0050] The support rod 11 is inserted into the support tube 12, and the support tube can store the support rod.

[0051] When the height of the guardrail needs to be increased, the support rod 11 is pulled upward from the support tube 12 so that the support rod extends upward, thereby extending the support rod outward relative to the support tube and raising the height of the guardrail.

[0052] When the height of the guardrail needs to be lowered, the support rod 11 is retracted into the support tube 12, the length of the support rod outside the support tube becomes shorter, the height is reduced, and then the height of the guardrail is reduced accordingly.

[0053] It is understandable that when the ground is uneven at the location where the guardrail is placed, the guardrail can be installed on the uneven ground by adjusting the support frames on both ends of the guardrail, which can improve the adaptability and flexibility of the guardrail.

[0054] In some embodiments of the present disclosure, a length adjustment structure of the support rod relative to the support tube is provided. An insertion rod 14 and a tension spring 15 are additionally installed. Figure 3 As shown, a plurality of insertion holes 111 are spaced apart in the height direction of the support rod 11, a tension spring 15 is installed on the side of the support tube 12, one end of the insertion rod 14 is connected to the tension spring 15, and the other end passes through the tension spring 15 and is inserted into a insertion hole 111 on the support tube 12 and the support rod 11.

[0055] When in use, when the insertion rod 14 is pulled outward relative to the support tube 12, the tension spring 15 is stretched outward by the insertion rod 14 to produce elastic deformation. When the insertion rod 14 is separated from the support rod 11, the support rod 11 can be adjusted to stretch upward and shrink downward. When it is necessary to raise, the support rod 11 is stretched outward from the support tube 12. When it is lifted to the required height, the stretching of the support rod 11 can be stopped, and a socket 111 on the support rod is adjusted to be aligned with the insertion rod 14, and the insertion rod 14 is released. The tension spring 15 pulls the insertion rod 14 to move toward the support tube 12, and the insertion rod 14 is inserted into the socket 111, which limits the movement of the support rod relative to the support tube, so that the support rod is fixedly connected to the support tube. When it is necessary to descend, the support rod 11 is retracted into the support tube 12. When it descends to the required height, the support rod 11 can be stopped from being retracted, and a socket 111 on the support rod is adjusted to be aligned with the insertion rod 14, and the insertion rod 14 is released. The tension spring 15 pulls the insertion rod 14 to move toward the support tube 12, and the insertion rod 14 is inserted into the socket 111, which limits the movement of the support rod relative to the support tube, so that the support rod is fixedly connected to the support tube.

[0056] In some embodiments of the present disclosure, in order to realize the prompting function of the guardrail, a reflector is additionally installed. A reflector 24 is provided on both sides of the first guardrail 21 and the second guardrail 22. The reflector 24 is provided to remind passing pedestrians and vehicles of the existence of the guardrail 2.

[0057] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. A protective fence for construction engineering, characterized in that: It comprises a support frame (1) and a guardrail (2) mounted on the support frame (1); The guardrail (2) comprises a first guardrail (21), a second guardrail (22) and a connecting piece (23); the connecting piece (23) comprises a locking rod and a locking seat (231); the locking rod and the locking seat (231) are movably connected; one end of the second guardrail (22) is slidably mounted in the first guardrail (21), and the other end is mounted with the locking seat (231); the locking rod is mounted on an end of the first guardrail (21) away from the locking seat; Wherein, two or more guardrails (2) are connected via a connecting piece (23); The locking rod comprises A tail wing (232), wherein at least one locking rod (238) is mounted on the tail wing (232), embedded in the end surface of the first guardrail (21), and can slide along the end surface of the first guardrail (21), and the locking rod (238) is movably connected to the locking seat (231); and A compression spring (233), one end of the compression spring (233) being mounted on the end surface of the first guardrail (21), and the other end of the compression spring (233) being connected to the tail wing (232); The end surface of the first guardrail (21) is provided with a slide groove (211), and the tail wing (232) is embedded in the slide groove (211) and can slide along the length direction of the slide groove (211); The invention also comprises a first support (234), a second support (235), a support seat (237) and a guide support (236), wherein the first support (234) is mounted on the end surface of the first guardrail (21), and the second support (235) is mounted on the tail wing (232), wherein the first support (234) and the second support (235) are used to install a compression spring (233); the support seat (237) is mounted on the tail wing (232) and is used to install a locking rod (238); the guide support (236) is mounted on the end surface of the first guardrail (21), is provided with a guide hole (2361), and is sleeved on the corresponding locking rod (238) through the guide hole (2361).

2. The protective fence for construction engineering according to claim 1, characterized in that: It also comprises a baffle (221), on one end of the second guardrail (22) inserted into the first guardrail (21) being mounted the baffle (221), the baffle (221) limiting the second guardrail (22) from extending outwards and moving away from the first guardrail (21).

3. The protective fence for construction engineering according to claim 2, characterized in that: Both ends of the baffle (221) are provided with protrusions (2211), and the top and bottom of the first guardrail (21) are both provided with guide grooves (210), and the protrusions (2211) are inserted into the corresponding guide grooves (210).

4. The protective fence for construction engineering according to claim 1, characterized in that: The lock seat (231) is a cylinder.

5. The protective fence for construction engineering according to claim 1, characterized in that: The support frame (1) comprises a support rod (11), a support tube (12) and a mounting plate (13); the support rod (11) can be vertically adjusted and mounted on the support tube (12); and the support tube (12) is mounted on the mounting plate (13).

6. The protective fence for construction engineering according to claim 5, characterized in that: It also includes an insertion rod (14) and a tension spring (15), wherein a plurality of insertion holes (111) are spaced apart in the height direction of the support rod (11), and the tension spring (15) is mounted on the side of the support tube (12), one end of the insertion rod (14) is connected to the tension spring (15), and the other end of the insertion rod (14) is penetrated by the tension spring (15) and inserted into a insertion hole (111) on the support tube (12) and the support rod (11).

7. The protective fence for construction engineering according to any one of claims 1 to 6, characterized in that: Reflective plates (24) are provided on both sides of the first guardrail (21) and the second guardrail (22).

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