Protective device

Abstract

The utility model discloses a protection device which comprises a first protection plate, a base, protection adjusting mechanisms and a supporting mechanism, the lower portion of the first protection plate is fixedly connected with the base, and the two sides of the first protection plate are provided with the protection adjusting mechanisms used for increasing the protection area. A supporting mechanism used for improving the stability of the device is arranged on the outer side of the protection adjusting mechanism, and the protection adjusting mechanism comprises a second protection plate, a first rotating shaft, a second rotating shaft, a first overturning assembly and a driving assembly. According to the protection device, through the structural design of the protection adjusting mechanism, the second protection plates on the two sides of the first protection plate can increase the protection area of the device, and when the device is used, the second protection plates can be opened by rotating the rotating disc, so that the protection area of the device is adjusted; and the opened second protection plate can support the two sides of the first protection plate, so that the stability of the device is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of blasting protection, in particular to a protection device. BACKGROUND

[0002] Some protective measures are generally taken during engineering blasting, especially when drilling and blasting method is used for tunnel excavation, the flying stones generated during blasting operation near the tunnel portal have strong destructive effect on the surrounding environment, therefore, the blasting protection device should be set on the front of the tunnel portal during the blasting operation near the tunnel portal to reduce the damage and influence of flying stones on the construction site.

[0003] For example, the utility model patent (CN219511406U) discloses an engineering blasting protection device, which is characterized in that: a movable protection frame with a protective net is arranged in the protection box, the two conical gears connected to the upper end of the protection frame are relatively moved by rotating the adjusting rod, so that the bidirectional bolt is rotated, the left and right movement of the sleeve on the bidirectional bolt drives the left and right movement of the protection frame, so that the adjustment of the protection range is realized, and the protection effect of tunnel blasting is improved.

[0004] In summary, the above-mentioned technical problems exist in the prior art: the protection device in the above-mentioned patent can expand the second protective net to increase the protection area during use, but the device lacks support, and the impact force on the device will increase with the increase of the protection area during blasting, and the device is easily overturned by being fixed to the ground, therefore, the present application provides a protection device to solve the technical problems mentioned in the above-mentioned patent and provides a new technical solution. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a protection device to solve the above-mentioned technical problems, the structure of the protection adjusting mechanism is designed, the second protection plate on both sides of the first protection plate can increase the protection area of the device, the second protection plate can be opened by rotating the rotating disc during use of the device, so that the protection area of the device is adjusted, and the opened second protection plate can support both sides of the first protection plate, effectively improving the stability of the device.

[0006] In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

[0007] A protection device is applied to engineering blasting.

[0008] The protection device specifically comprises a first protection plate, a base, a protection adjusting mechanism and a supporting mechanism, the bottom of the first protection plate is fixedly connected with the base, the two sides of the first protection plate are provided with the protection adjusting mechanism for lifting the protection area, and the outer side of the protection adjusting mechanism is provided with the supporting mechanism for improving the stability of the device.

[0009] The protection adjusting mechanism comprises a second protection plate, a first rotating shaft, a second rotating shaft, a first turnover assembly and a driving assembly, the two sides of the first protection plate are symmetrically provided with four second protection plates, the inside of the first protection plate and the positions corresponding to the second protection plates are vertically rotatably connected with four first rotating shafts, the four first rotating shafts are fixedly connected with the four second protection plates respectively, and the inside of the first protection plate is horizontally rotatably connected with the second rotating shaft.

[0010] As a preferred embodiment of the protection device, the first turnover assembly comprises a worm and a worm wheel, the two ends of the second rotating shaft and the positions corresponding to the first rotating shaft are fixedly connected with the worm, the two sides of the worm are provided with the worm wheel, the worm wheel is fixedly connected with the surface of the first rotating shaft, and the worm is meshingly connected with the worm wheel.

[0011] As a preferred embodiment of the protection device, the driving assembly comprises a rotating disc, a first bevel gear and a second bevel gear, the middle part of the second rotating shaft is fixedly connected with the first bevel gear, the upper middle part of the first protection plate is rotatably connected with the rotating disc, the inside of the first protection plate and the position corresponding to the rotating disc are rotatably connected with the second bevel gear, the rotating disc is fixedly connected with the second bevel gear, and the second bevel gear is meshingly connected with the first bevel gear.

[0012] As a preferred embodiment of the protection device, the supporting mechanism comprises a fixing seat, a supporting plate and a second turnover assembly, the outer side of the second protection plate is fixedly connected with the fixing seat, and the lower end of the fixing seat is rotatably connected with the supporting plate.

[0013] As a preferred embodiment of the protection device, the second turnover assembly comprises a sliding groove, a threaded rod, a connecting rod, a knob and a sliding block, the surface of the fixing seat is vertically provided with the sliding groove, the inside of the sliding groove is rotatably connected with the threaded rod, the surface of the threaded rod is threadedly connected with the sliding block, the sliding block is slidably connected with the sliding groove, the outer side of the sliding block is rotatably connected with the connecting rod, the middle part of the supporting plate and the end, away from the sliding block, of the connecting rod are rotatably connected, the top end of the fixing seat is rotatably connected with the knob, and the knob is fixedly connected with the threaded rod.

[0014] As a preferred embodiment of the utility model provides the protection device, the surface of base and support plate all movable joint has the ground anchor.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The protection device provided by the utility model has the following beneficial effects.

[0017] The protection device provided by the utility model has the following beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the scheme in the utility model, the following will be needed to use the drawings in the embodiment description, obviously, the following description in the drawings is some embodiments of the utility model, for those skilled in the art, without creative labor, according to these drawings, other drawings can also be obtained.

[0019] Fig. 1 The overall structure schematic diagram of the protection device provided by the utility model is shown in the figure.

[0020] Fig. 2 The structure schematic diagram of the second protection plate of the protection device provided by the utility model is shown in the figure.

[0021] Fig. 3 The internal structure section view of the first protection plate of the protection device provided by the utility model is shown in the figure.

[0022] Fig. 4 The structure schematic diagram of the worm and the worm wheel of the protection device provided by the utility model is shown in the figure.

[0023] Fig. 5 The structure schematic diagram of the fixed seat and the support plate of the protection device provided by the utility model is shown in the figure.

[0024] Fig. 6 The structure enlarged view of the A of the protection device figure provided by the utility model is shown in the figure.

[0025] The figure mark is as follows:

[0026] 1, the first protective plate; 2, base; 3, protection adjusting mechanism; 4, supporting mechanism; 5, the second protective plate; 6, the first rotating shaft; 7, the second rotating shaft; 8, carousel; 9, worm; 10, worm wheel; 11, first bevel gear; 12, second bevel gear; 13, fixed base; 14, support plate; 15, sliding slot; 16, threaded rod; 17, connecting rod; 18, ground anchor; 19, knob; 20, sliding block. DETAILED DESCRIPTION

[0027] In order to make the person skilled in the art better understand the utility model scheme, the following will be combined with the drawings in the embodiments of the utility model, the technical scheme in the embodiments of the utility model is clearly and completely described, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor should belong to the scope of protection of the utility model.

[0028] As described in the background art, the protective device in the above patent can increase the protection area by unfolding the second protective net during use, but the above device lacks device support, and when blasting, as the protection area increases, the impact force on the device will also increase, and it is easy to overturn by merely fixing the device to the ground.

[0029] In order to solve this technical problem, the utility model provides a protective device, which is applied to engineering blasting.

[0030] Specifically, please refer to Figs. 1-6 , the protective device specifically includes:

[0031] The first protective plate 1, the base 2, the protection adjusting mechanism 3 and the supporting mechanism 4, the lower side of the first protective plate 1 is fixedly connected with the base 2, the both sides of the first protective plate 1 are provided with the protection adjusting mechanism 3 for increasing the protection area, the outer side of the protection adjusting mechanism 3 is provided with the supporting mechanism 4 for improving the stability of the device;

[0032] The protection adjusting mechanism 3 includes the second protective plate 5, the first rotating shaft 6, the second rotating shaft 7, the first turnover assembly and the driving assembly, the both sides of the first protective plate 1 are respectively and symmetrically provided with four second protective plates 5, the inside of the first protective plate 1 and the corresponding position with the second protective plate 5 are vertically rotatably connected with four first rotating shafts 6, four first rotating shafts 6 are fixedly connected with four second protective plates 5 respectively, and the inside of the first protective plate 1 is horizontally rotatably connected with the second rotating shaft 7.

[0033] The protective device provided by the utility model, through the structural design of the three protection adjusting mechanisms 3, the second protection plates 5 on the two sides of the first protection plate 1 can improve the protection area of the device, and when the device is used, the second protection plates 5 can be opened through the rotating disc 8, so that the protection area of the device is adjusted, and the opened second protection plates 5 can support the two sides of the first protection plate 1, effectively improving the stability of the device.

[0034] In order for those skilled in the art to better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings.

[0035] Embodiment 1:

[0036] Please refer to Figs. 1-4 A protective device comprises a first protection plate 1, a base 2, a protection adjusting mechanism 3 and a supporting mechanism 4, the bottom of the first protection plate 1 is fixedly connected with the base 2, the two sides of the first protection plate 1 are provided with the protection adjusting mechanism 3 for improving the protection area, and the outer side of the protection adjusting mechanism 3 is provided with the supporting mechanism 4 for improving the stability of the device.

[0037] Specifically, the protection adjusting mechanism 3 comprises a second protection plate 5, a first rotating shaft 6, a second rotating shaft 7, a first turnover assembly and a driving assembly, four second protection plates 5 are symmetrically arranged on the two sides of the first protection plate 1, four first rotating shafts 6 are vertically rotatably connected to the inside of the first protection plate 1 and correspond to the positions of the second protection plates 5, the four first rotating shafts 6 are fixedly connected with the four second protection plates 5 respectively, and a second rotating shaft 7 is horizontally rotatably connected to the inside of the first protection plate 1.

[0038] Further, the first turnover assembly comprises a worm 9 and a worm wheel 10, the two ends of the second rotating shaft 7 and the positions corresponding to the first rotating shaft 6 are fixedly connected with the worm 9, the two sides of the worm 9 are provided with the worm wheel 10, the worm wheel 10 is fixedly connected with the surface of the first rotating shaft 6, and the worm 9 is meshingly connected with the worm wheel 10.

[0039] Further, the driving assembly comprises a rotating disc 8, a first bevel gear 11 and a second bevel gear 12, the middle part of the second rotating shaft 7 is fixedly connected with the first bevel gear 11, the top middle part of the first protection plate 1 is rotatably connected with the rotating disc 8, the inside of the first protection plate 1 and the position corresponding to the rotating disc 8 are rotatably connected with the second bevel gear 12, the rotating disc 8 is fixedly connected with the second bevel gear 12, and the second bevel gear 12 is meshingly connected with the first bevel gear 11.

[0040] It can be known that, in use, the second bevel gear 12 can be driven to rotate by rotating the rotating disc 8, so that the first bevel gear 11 connected with the second bevel gear 12 rotates and drives the second rotating shaft 7 to rotate, the second rotating shaft 7 at both ends is driven to rotate by the rotation of the second rotating shaft 7, so that the worm wheel 10 connected with the worm 9 rotates and drives the second protective plate 5 and the first rotating shaft 6 fixed therewith to rotate and open outward, thereby realizing the effect of adjusting the protection area of the device. After the second protective plate 5 is opened, the second protective plate 5 can support the two sides of the first protective plate 1, preventing the device from being overturned due to impact force during blasting, and effectively improving the stability of the device.

[0041] Embodiment 2:

[0042] The protective device provided in Embodiment 1 is further optimized, specifically, as shown in Figs. 5-6 Further, the supporting mechanism 4 includes a fixed seat 13, a supporting plate 14 and a second turnover assembly, the outer side of the second protective plate 5 is fixedly connected with the fixed seat 13, and the lower end of the fixed seat 13 is rotatably connected with the supporting plate 14.

[0043] Further, the second turnover assembly includes a sliding groove 15, a threaded rod 16, a connecting rod 17, a knob 19 and a sliding block 20, the surface of the fixed seat 13 is vertically provided with the sliding groove 15, the inside of the sliding groove 15 is rotatably connected with the threaded rod 16, the surface of the threaded rod 16 is threadedly connected with the sliding block 20, the sliding block 20 is slidably connected with the sliding groove 15, the outer side of the sliding block 20 is rotatably connected with the connecting rod 17, the connecting rod 17 away from the sliding block 20 is rotatably connected with the middle part of the supporting plate 14, and the top end of the fixed seat 13 is rotatably connected with the knob 19, and the knob 19 is fixedly connected with the threaded rod 16.

[0044] Further, in order to improve the stability of the connection between the device and the ground, the surface of the base 2 and the supporting plate 14 is movably connected with the ground anchor 18.

[0045] It can be known that, in use, the second bevel gear 12 can be driven to rotate by rotating the rotating disc 8, so that the first bevel gear 11 connected with the second bevel gear 12 rotates and drives the second rotating shaft 7 to rotate, the second rotating shaft 7 at both ends is driven to rotate by the rotation of the second rotating shaft 7, so that the worm wheel 10 connected with the worm 9 rotates and drives the second protective plate 5 and the first rotating shaft 6 fixed therewith to rotate and open outward, thereby realizing the effect of adjusting the protection area of the device. After the second protective plate 5 is opened, the second protective plate 5 can support the two sides of the first protective plate 1, preventing the device from being overturned due to impact force during blasting, and effectively improving the stability of the device.

Claims

1. A protective device, characterized in that The utility model relates to a kind of protective device, including: First guard board (1), pedestal (2), protection adjusting mechanism (3) and support mechanism (4), the lower side of the first guard board (1) is fixedly connected with pedestal (2), the both sides of the first guard board (1) are provided with protection adjusting mechanism (3) for lifting protective area, the outer side of the protection adjusting mechanism (3) is provided with support mechanism (4) for lifting device stability; The protection adjusting mechanism (3) includes second guard board (5), first rotating shaft (6), second rotating shaft (7), first turnover assembly and drive assembly, the both sides of the first guard board (1) are respectively provided with four second guard board (5) in symmetry, four first rotating shafts (6) are vertically rotatably connected in the inside of the first guard board (1) and with the corresponding position of second guard board (5), four first rotating shafts (6) are fixedly connected with four second guard boards (5) respectively, second rotating shaft (7) is rotatably connected in the inside of the first guard board (1) and with the corresponding position of first rotating shaft (6).

2. The guard of claim 1, wherein The first turnover assembly includes worm (9) and worm wheel (10), the both ends of the second rotating shaft (7) and with the corresponding position of first rotating shaft (6) are fixedly connected with worm (9), the both sides of the worm (9) are provided with worm wheel (10), the worm wheel (10) is fixedly connected with the surface of first rotating shaft (6), the worm (9) is meshingly connected with the worm wheel (10).

3. The guard of claim 2, wherein, The drive assembly includes rotating disc (8), first bevel gear (11) and second bevel gear (12), the middle part of the second rotating shaft (7) is fixedly connected with first bevel gear (11), the upper middle part of the first guard board (1) is rotatably connected with rotating disc (8), the inside of the first guard board (1) and with the corresponding position of rotating disc (8) is rotatably connected with second bevel gear (12), the rotating disc (8) is fixedly connected with second bevel gear (12), and second bevel gear (12) is meshingly connected with first bevel gear (11).

4. The guard of claim 3, wherein The support mechanism (4) includes fixed seat (13), support plate (14) and second turnover assembly, the outer side of the second guard board (5) is fixedly connected with fixed seat (13), and the lower end of the fixed seat (13) is rotatably connected with support plate (14).

5. The guard of claim 4, wherein, The second turnover assembly includes sliding slot (15), threaded rod (16), connecting rod (17), knob (19) and sliding block (20), the surface of the fixed seat (13) is vertically provided with sliding slot (15), the inside of the sliding slot (15) is rotatably connected with threaded rod (16), the surface of the threaded rod (16) is threadedly connected with sliding block (20), the sliding block (20) is slidably connected with the sliding slot (15), the outer side of the sliding block (20) is rotatably connected with connecting rod (17), the middle part of the support plate (14) is rotatably connected with the end away from the sliding block (20) of the connecting rod (17), the top end of the fixed seat (13) is rotatably connected with knob (19), and the knob (19) is fixedly connected with the threaded rod (16).

6. The guard of claim 5, wherein, The surface of the pedestal (2) and support plate (14) is movably connected with ground anchor (18).

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