Protective device with height adjusting function
The design of the protective unit and support components solves the problem of mismatch in the height of the municipal dust control net after the pole height is adjusted, realizing flexible adjustment and fixation of the dust control net to adapt to different usage needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-10
AI Technical Summary
After the height of the existing municipal dust control netting poles is adjusted, the height of the netting itself becomes unsuitable, leading to inconvenience in its use.
A protective device comprising a protective unit, a dustproof net roll, a connecting groove, and connecting screws is designed. The height and width of the dustproof net can be adjusted by combining threaded connections and support components, and it is fixed and supported by fasteners and support components.
The dustproof netting is flexibly adjustable to adapt to different height and width requirements, making it easy to use and install, and improving efficiency.
Smart Images

Figure CN223984327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal protection technology, specifically to a protective device with height adjustment function. Background Technology
[0002] Municipal management work includes industry and commerce, transportation, public security, culture and education, environment, health, and basic construction. The construction of various public infrastructure supporting urban life falls under the scope of municipal engineering. In order to effectively prevent dust and avoid dust pollution, dust nets are usually set up on city streets and around pollution sources to prevent dust from overflowing and affecting the surrounding environment.
[0003] Chinese patent application number CN202322997391.6 discloses a municipal dust control net, including a pole, a support mechanism, and a height adjustment mechanism. Side plates are installed on the lower front and rear sides of the pole, and a support plate is installed between the side plates via a pivot. A support mechanism for fixing the support plate is provided inside the side plates. A height adjustment mechanism for adjusting the height of the dust control net is provided on the upper side of the pole, and a net body is installed on the upper side wall of the height adjustment mechanism. This device can adjust the height of the dust control net pole according to the needs of municipal dust control. However, in use, the dust control net is installed after the pole height is adjusted, and the required dust control net height varies depending on the pole height, which is inconvenient.
[0004] Based on this, the present invention designs a protective device with height adjustment function to solve the above problems. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a protective device with highly adjustable function.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A protective device with height adjustment function includes a protective unit, which comprises a protective frame, a dustproof net roll, a lower connecting groove, an upper connecting block, a side connecting groove, and a side connecting block. The protective frame has an installation groove and a fixing groove on its vertical sidewall. The dustproof net roll is installed in the installation groove. The lower connecting groove is located at the bottom of the protective frame, and the upper connecting block is located at the top of the protective frame. The side connecting groove has a vertical outer side surface of the protective frame, and the side connecting block is installed on another vertical outer side surface of the protective frame. The lower connecting groove and the upper connecting block have mating upper screw holes, with upper connecting screws threaded into these holes. The side connecting groove and the side connecting block have mating side connecting screw holes, with side connecting screws threaded into these holes. A fixing component is installed on the inner wall of the fixing groove.
[0008] Furthermore, the height of the mounting groove and the fixing groove is equal to the height of the inner cavity of the protective frame, and the height of the dustproof net roll is equal to the height of the mounting groove.
[0009] Furthermore, the dustproof netting wound on the dustproof netting roll is fixed with a fixing strip at the end, and a through groove is symmetrically opened on both sides of the center of the fixing groove. The fixing component includes a fixing slide, a fixing slider, a fixing screw and a fixing plate.
[0010] Furthermore, the fixed slide groove passes through both sides of the protective frame and has blocking blocks at both ends. The blocking blocks are threadedly fixed to the side of the protective frame. There are two sets of fixed sliders that slide symmetrically on both sides of the center of the fixed slide groove. The fixed screw thread passes through the two sets of fixed sliders and the two screws are threaded in opposite directions. The fixed screw rotates through the blocking blocks, and the fixed plate is threadedly fixed to the top of the fixed slider.
[0011] Furthermore, the top of the protective frame is threaded with a clamping screw, the diameter of which is equal to the diameter of the inner cavity of the dustproof net roll. The top of the protective frame is provided with a hidden groove, and the top of the clamping screw is provided with an auxiliary hexagonal hole.
[0012] Furthermore, a support member is installed on one side of the protective frame. The support member includes a support groove, a support slider, a support rod, and a support base plate. The support groove is located on the side of the protective frame. The support slider slides within the support groove. The support rod rotates on the support slider. The support base plate is threadedly fixed to the bottom end of the side of the protective frame.
[0013] Furthermore, the support groove extends through the top and bottom of the protective frame, and positioning holes are provided on the support base plate.
[0014] Furthermore, the support rod is internally threaded with a sub-rod, which rotates on the support slider.
[0015] Beneficial effects
[0016] 1. By setting up protective units, upper screw holes, upper connecting screws, side connecting screw holes and side connecting screws, an appropriate number of protective units can be selected according to specific needs. The upper connecting screws and upper screw holes, and the side connecting screws and side connecting screw holes are threaded together to assemble and fix them into a protective whole of a certain height and width, which is convenient for use.
[0017] 2. By setting up fixing strips, through slots, and fasteners, the dustproof net is pulled out. The fixing strip passes through the through slots and then into the fixing slots. By rotating the fixing screw, the position of the two sets of fixing plates is adjusted using the threaded engagement of the fixing screw and the fixing slider to clamp and fix the dustproof net. By setting up clamping screws, hidden slots, and auxiliary hexagonal holes, when the dustproof net roll is installed in the installation slot, the clamping screw is rotated using the auxiliary hexagonal holes to enter the inner cavity of the dustproof net roll, thus limiting its movement and preventing it from being pulled out when the dustproof net is pulled. By setting up support components, positioning holes, and sub-rods, when supporting the device, the support slider is slid into the support groove. By rotating the support rod, the length is adjusted using the threaded engagement of the support rod and the sub-rod to support the protective unit at a suitable height. At the same time, external expansion screws are driven into the bottom support plate and positioning holes for auxiliary positioning support. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a perspective view of the main structure of a protective device with height adjustment function according to the present invention;
[0020] Figure 2 This utility model discloses a three-dimensional protective unit structure for a protective device with height adjustment function. Figure 1 ;
[0021] Figure 3 This utility model discloses a three-dimensional protective unit structure for a protective device with height adjustment function. Figure 2 ;
[0022] Figure 4 This is a perspective view of a dustproof net roll structure of a protective device with height adjustment function according to this utility model;
[0023] Figure 5 This is an enlarged perspective view of part A of a protective device with height adjustment function according to this utility model;
[0024] Figure 6 This is an enlarged perspective view of part B of a protective device with height adjustment function according to this utility model;
[0025] Figure 7 This is an enlarged perspective view of part C of a protective device with height adjustment function according to this utility model;
[0026] Figure 8 This is an enlarged perspective view of part D of a protective device with height adjustment function according to this utility model.
[0027] The labels in the diagram represent:
[0028] 1. Protective frame; 2. Dustproof net roll; 3. Lower connecting groove; 4. Upper connecting block; 5. Side connecting groove; 6. Side connecting block; 7. Mounting groove; 8. Fixing groove; 9. Upper screw hole; 10. Upper connecting screw; 11. Side connecting screw hole; 12. Side connecting screw; 13. Fixing strip; 14. Through groove; 15. Fixing slide groove; 16. Fixing slider; 17. Fixing screw; 18. Fixing plate; 19. Block; 20. Clamping screw; 21. Concealed groove; 22. Auxiliary hexagonal hole; 23. Support slide groove; 24. Support slider; 25. Support rod; 26. Support base plate; 27. Positioning hole; 28. Sub-rod. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0030] The present invention will be further described below with reference to the embodiments.
[0031] In some embodiments, please refer to the accompanying drawings. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8A protective device with height adjustment function includes a protective unit, which includes a protective frame 1, a dustproof net roll 2, a lower connecting groove 3, an upper connecting block 4, a side connecting groove 5, and a side connecting block 6. The protective frame 1 has an installation groove 7 and a fixing groove 8 on its vertical side wall. The dustproof net roll 2 is installed in the installation groove 7. The lower connecting groove 3 is located at the bottom of the protective frame 1, and the upper connecting block 4 is located at the top of the protective frame 1. The side connecting groove 5 has a vertical outer side of the protective frame 1, and the side connecting block 6 is installed on another vertical outer side of the protective frame 1. The lower connecting groove 3 and the upper connecting block 4 are fitted with upper screw holes 9, and upper connecting screws 10 are threaded into the upper screw holes 9. The side connecting groove 5 and the side connecting block 6 are fitted with side connecting screw holes 11, and side connecting screws 12 are threaded into the side connecting screw holes 11. Fixing components are installed on the inner wall of the fixing groove 8.
[0032] In this embodiment of the utility model, when in use, the device is assembled from multiple protective units. The dustproof net is pulled out from the dustproof net roll 2 and positioned in the fixing groove 8. According to specific needs, an appropriate number of protective units can be selected. By utilizing the cooperation of the upper connecting block 4 and the lower connecting groove 3, the side connecting groove 5 and the side connecting block 6, and the threaded cooperation of the upper connecting screw 10 and the upper screw hole 9, the side connecting screw 12 and the side connecting screw hole 11, a protective whole of a certain height and width is assembled and fixed, which is convenient for use.
[0033] In this embodiment of the utility model, by setting a protective unit, an upper screw hole 9, an upper connecting screw 10, a side connecting screw hole 11, and a side connecting screw 12, an appropriate number of protective units can be selected according to specific needs. The upper connecting screw 10 and the upper screw hole 9, and the side connecting screw 12 and the side connecting screw hole 11 are threaded together to assemble and fix a protective whole of a certain height and width, which is convenient for use.
[0034] In one embodiment of this utility model, the height of the mounting groove 7 and the fixing groove 8 is equal to the height of the inner cavity of the protective frame 1, and the height of the dustproof net roll 2 is equal to the height of the mounting groove 7, which facilitates the installation of the dustproof net roll 2; the ends of the dustproof net wound on the dustproof net roll 2 are fixed with fixing strips 13, and the fixing groove 8 has symmetrical through grooves 14 on both sides of the center. The fixing components include fixing slide grooves 15, fixing sliders 16, fixing screws 17 and fixing plates 18. The fixing slide grooves 15 pass through both sides of the protective frame 1 and have plugs 19 sliding at both ends. The plugs 19 are threaded and fixed to the protective frame. 1. On the side, there are two sets of fixed sliders 16 that slide symmetrically on both sides of the center of the fixed slide groove 15. The fixed screw 17 is threaded through the two sets of fixed sliders 16 and the two threads are in opposite directions. The fixed screw 17 rotates through the block 19. The fixed plate 18 is threadedly fixed to the top of the fixed slider 16. The dustproof net is pulled out and passes through the through groove 14 through the fixed strip 13 and then into the fixed groove 8. The fixed screw 17 is rotated and the position of the two sets of fixed plates 18 is adjusted by the threaded engagement of the fixed screw 17 and the fixed slider 16 to clamp and fix the dustproof net.
[0035] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a clamping screw 20 is threadedly rotated at the top of the protective frame 1. The diameter of the clamping screw 20 is equal to the diameter of the inner cavity of the dustproof net roll 2. A hidden groove 21 is opened at the top of the protective frame 1, and an auxiliary hexagonal hole 22 is opened at the top of the clamping screw 20. A support component is installed on one side of the protective frame 1. The support component includes a support groove 23, a support slider 24, a support rod 25, and a support base plate 26. The support groove 23 is set on the side of the protective frame 1 and runs through the top and bottom of the protective frame 1. The support slider 24 slides in the support groove 23. A sub-rod 28 is threadedly connected inside the support rod 25. The sub-rod 28 rotates on the support slider 24. The support base plate 26 is threadedly fixed to the bottom of the side of the protective frame 1. A positioning hole 27 is opened on the support base plate 26.
[0036] In this embodiment of the invention, the device is assembled from multiple protective units. The dustproof net is pulled out from the dustproof net roll 2 and positioned in the fixing groove 8. The dustproof net is then pulled out and passed through the through groove 14 via the fixing strip 13 before entering the fixing groove 8. The fixing screw 17 is rotated, and the threaded engagement between the fixing screw 17 and the fixing slider 16 adjusts the position of the two sets of fixing plates 18, clamping and fixing the dustproof net. An appropriate number of protective units can be selected according to specific needs, utilizing the upper connecting block 4, the lower connecting groove 3, and the side connecting... The groove 5 and the side connecting block 6 are assembled and fixed into a protective unit of a certain height and width by the threaded engagement of the upper connecting screw 10 and the upper screw hole 9, and the side connecting screw 12 and the side connecting screw hole 11, which is convenient for use. When supporting the device, the support slider 24 is slid into the support groove 23, and the support rod 25 is rotated. By using its threaded engagement with the sub-rod 28, the length can be adjusted to support the protective unit at a suitable height. At the same time, the external expansion screws are driven into the bottom support plate 26 and the positioning hole 27 for auxiliary positioning support.
[0037] In this embodiment of the utility model, by setting a clamping screw 20, a hidden groove 21, and an auxiliary hexagonal hole 22, when the dustproof net roll 2 is installed in the mounting groove 7, the clamping screw 20 is rotated using the auxiliary hexagonal hole 22 to enter the inner cavity of the dustproof net roll 2, thereby limiting its movement and preventing it from being pulled out when the dustproof net is pulled. By setting a support member, a positioning hole 27, and a sub-rod 28, when supporting the device, the support slider 24 is slid into the support groove 23, and the support rod 25 is rotated. By using its threaded engagement with the sub-rod 28, the length can be adjusted to support the protective unit at a suitable height. At the same time, external expansion screws are driven into the bottom support plate 26 and the positioning hole 27 for auxiliary positioning support.
[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A guard device having a height adjustment function, comprising a guard unit, characterized by: The protection unit includes a protection frame (1), a dust screen roller (2), a lower connecting groove (3), an upper connecting block (4), a side connecting groove (5) and a side connecting block (6), the vertical side wall of the inner cavity of the protection frame (1) is provided with a mounting groove (7) and a fixing groove (8), the dust screen roller (2) is mounted in the mounting groove (7), the lower connecting groove (3) is arranged at the bottom end of the protection frame (1), the upper connecting block (4) is arranged at the top end of the protection frame (1), the side connecting groove (5) is provided on the vertical outer side of the protection frame (1), the side connecting block (6) is mounted on the other vertical outer side of the protection frame (1), the upper screw hole (9) is cooperatively provided on the lower connecting groove (3) and the upper connecting block (4), the upper connecting screw (10) is threadedly connected in the upper screw hole (9), the side connecting screw hole (11) is cooperatively provided on the side connecting groove (5) and the side connecting block (6), the side connecting screw (12) is threadedly connected in the side connecting screw hole (11), and the fixing groove (8) is provided with a fixing member.
2. The guard device having a height adjustment function according to claim 1, characterized by, The height of the mounting groove (7) and the fixing groove (8) is equal to the height of the inner cavity of the protection frame (1), and the height of the dust screen roller (2) is equal to the height of the mounting groove (7).
3. The guard device having a height adjustment function according to claim 2, characterized by, The dust screen end of the dust screen roller (2) is fixedly provided with a fixed strip (13), the center of the inner wall of the fixing groove (8) is symmetrically provided with a through groove (14), and the fixing member includes a fixed sliding groove (15), a fixed sliding block (16), a fixed screw rod (17) and a fixed plate (18).
4. The guard device having a height adjustment function according to claim 3, characterized by, The fixed sliding groove (15) penetrates the both sides of the protection frame (1) and the both ends of the fixed sliding groove (15) are slidably provided with a plug block (19), the plug block (19) is threadedly fixed on the side surface of the protection frame (1), the fixed sliding block (16) is symmetrically slidably provided on the center of the both sides of the fixed sliding groove (15), the fixed screw rod (17) threadedly penetrates the two groups of fixed sliding blocks (16) and the threadedly cooperating directions of the two groups of fixed sliding blocks (16) are opposite, the fixed screw rod (17) penetrates the plug block (19) and is rotatable, and the fixed plate (18) is threadedly fixed on the top end of the fixed sliding block (16).
5. The guard device having a height adjustment function according to claim 4, wherein The top end of the protection frame (1) is threadedly rotatable provided with a pressing screw rod (20), the diameter of the pressing screw rod (20) is equal to the diameter of the inner cavity of the dust screen roller (2), the top end of the protection frame (1) is provided with a hidden groove (21), and the top end of the pressing screw rod (20) is provided with an auxiliary hexagonal hole (22).
6. The guard device having a height adjustment function according to claim 5, wherein A supporting member is mounted on one side surface of the protection frame (1), the supporting member includes a supporting sliding groove (23), a supporting sliding block (24), a supporting rod (25) and a supporting bottom plate (26), the supporting sliding groove (23) is arranged on the side surface of the protection frame (1), the supporting sliding block (24) is slidably arranged in the supporting sliding groove (23), the supporting rod (25) is rotatably arranged on the supporting sliding block (24), and the supporting bottom plate (26) is threadedly fixed on the bottom end of the side surface of the protection frame (1).
7. The guard device having a height adjustment function according to claim 6, wherein The supporting sliding groove (23) penetrates the top end and the bottom end of the protection frame (1), and the supporting bottom plate (26) is provided with a positioning hole (27).
8. The guard device having a height adjustment function according to claim 7, wherein The support rod (25) is internally threaded with a sub-rod (28) which rotates on a support slider (24).
Citation Information
Patent Citations
Municipal dustproof net
CN221546580U