Talcum powder smearing device for civil air defense engineering sealing rubber strip
By designing a combination of an extension rod and an application device, the safety hazards and low efficiency of manual application of talcum powder in civil defense projects have been solved, achieving safe and efficient application of talcum powder and reducing environmental pollution and health risks.
Patent Information
- Application Number
- CN202520239455.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-15
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-15
AI Technical Summary
The existing technology for manually applying talcum powder to the sealing strips of civil defense projects poses safety hazards, is inefficient, and can easily cause environmental pollution and health effects.
A device including an extension rod and an application mechanism was designed. The rotation of the spiral shaft is controlled by a steel wire rope and gear system to achieve quantitative application of talcum powder, avoiding talcum powder falling or spilling. The rod-shaped extension rod eliminates the need for the application roller to operate at the same height.
It achieves safe and efficient talcum powder application, reduces environmental pollution and health risks, improves application efficiency, and ensures quantitative delivery of talcum powder.
Smart Images

Figure CN223931844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil defense engineering, and in particular to a device for applying talcum powder to sealing strips in civil defense engineering. Background Technology
[0002] Applying talcum powder evenly to the sealing strip serves the following purposes: First, it absorbs moisture and dries the surface: Talc has hygroscopic properties, effectively absorbing moisture from the sealing strip surface and preventing adhesion problems caused by excessive moisture. Second, it lubricates and maintains the surface: After applying talcum powder, a lubricating layer is formed on the sealing strip surface, helping to reduce friction when opening and closing the door and protecting the sealing strip from wear. Third, it extends service life: Talc has soft and smooth properties, can withstand high temperatures, and generally does not react with acids and alkalis, maintaining the flexibility of the sealing strip and preventing it from hardening, thereby extending its service life.
[0003] Because civil defense projects have a large number of steel doors, which are equipped with sealing strips, these sealing strips are easily corroded and stuck together in the damp underground environment. Therefore, it is necessary to regularly apply talcum powder to the sealing strips to ensure their proper function. Currently, most methods of applying sealing strips to steel doors are manual. This manual method has the following problems: First, when applying talcum powder, it is usually applied to the outside of the roller before applying it to the sealing strip. The talcum powder easily floats in the air or spills onto the ground. Airborne talcum powder is easily inhaled by the operator, causing adverse health effects, while spilled talcum powder pollutes the environment. Second, because the sealed doors are relatively high, ladders are needed to apply the sealing strips, and the ladders need to be constantly moved to complete the application, which not only poses safety hazards but also has low efficiency. Utility Model Content
[0004] This invention addresses the aforementioned shortcomings of existing technologies by providing a device for applying talcum powder to sealing strips in civil defense projects. This device utilizes an extended rod to apply talcum powder to sealing strips at higher locations, eliminating the need for leveling operations, ensuring safety and efficiency, and allowing for manual control of the addition of talcum powder to reduce its fall, thereby minimizing environmental pollution and its impact on human health.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A device for applying talcum powder to sealing strips in civil defense projects includes an operating device and an application device. The operating device includes an extension rod, with a fixed handle fixedly connected to the lower part of the extension rod. The fixed handle is hinged to a handle, and the handle is hinged to a joint. A steel wire rope connects the joint and a rack on the application device. The application device includes an application seat, which is slidably connected to the rack. The rack is connected to a rotating spiral shaft via gears. The spiral shaft is located inside a hopper, and a coating roller is rotatably connected to the outside of the hopper. The handle controls the rotation of the spiral shaft via the steel wire rope. When the spiral shaft rotates, it applies talcum powder from inside the hopper to the coating roller.
[0007] The fixing handle is a hollow annular sleeve, which is fixed to the lower part of the extension rod. A right-angle seat is provided on one side of the fixing handle, and a right-angle seat hinge is provided at the bottom of the right-angle seat. The handle is a right-angle structure, and there are handle hole 1 and handle hole 2 on both sides of one side of the handle. The handle hole 1 is hinged to the right-angle seat hinge, and the handle hole 2 is hinged to the joint.
[0008] The end face of the applicator is provided with an applicator groove, which is slidably connected to the rack slider at the bottom of the rack.
[0009] A wire rope sleeve is provided on one side of the coating seat groove. One side of the wire rope sleeve is fixed in the wire rope sleeve. The other side of the wire rope sleeve passes through multiple guide seats set in the axial direction of the extension rod and is fixed in the right-angle seat hole at the upper part of the right-angle seat. A wire rope is provided in the wire rope sleeve. One side of the wire rope is fixedly connected to the upper part of the joint, and the other side of the wire rope is fixedly connected to the side of the rack.
[0010] The rack and wire rope sleeve are equipped with springs on their inner sides, and the springs are sleeved on the outer side of the wire rope.
[0011] The end face of the coating seat is provided with a coating seat hole. The intermediate shaft of the gear is rotatably connected to the coating seat hole. The gear and the first bevel gear mesh with each other. The first bevel gear is fixedly connected to the upper part of the gear. The first bevel gear and the second bevel gear mesh with each other. The second bevel gear is fixed on one side of the spiral shaft. The intermediate shaft of the spiral shaft is rotatably connected to the support seat on one side of the coating seat.
[0012] The hopper is a funnel-shaped structure with a closed bottom. The inside of the hopper is hollow. One side of the hopper is a slender feeding cylinder, which allows the talc powder to be transported to the outside of the feeding cylinder. The slender feeding cylinder can ensure the working space of the coating roller. The spiral shaft is set in the hopper, and the outside of the spiral shaft is aligned with the outside of the feeding cylinder. The middle shaft of the spiral shaft passes through the hopper hole at the bottom of the hopper.
[0013] The outer side of the feeding cylinder is provided with a discharge trough, and the inner side of the discharge trough is provided with a hopper support seat. The intermediate shaft of the coating roller is inserted into the hopper support seat, and a retaining ring is fitted onto the outer side of the intermediate shaft of the spiral shaft. A nut is connected to the outer side of the intermediate shaft of the spiral shaft. Under the action of the nut, the retaining ring clamps the coating roller between the retaining ring and the hopper support seat. The surface of the coating roller is provided with flexible bristles, and the flexible bristles of the coating roller are in close contact with the surface of the spiral shaft.
[0014] Beneficial effects: The rod-shaped extension rod allows the operator to roll the upper coating roller along the sealing strip without needing to be at the same height, ensuring that the talcum powder is applied to the sealing strip. This is safe and efficient. A steel wire rope connects the operating device and the coating device. By holding the handle, the upper auger shaft can be rotated, which transports the talcum powder in the hopper to the surface of the outer coating roller. Because the surface of the coating roller and the auger shaft are in close contact, the talcum powder will not leak. The operator can control the delivery of talcum powder according to the amount of talcum powder on the sealing strip, ensuring the amount of talcum powder on the coating roller while preventing excessive talcum powder from falling into the air or onto the ground, thus reducing environmental pollution and the impact on human health. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the device for applying talcum powder to the sealing strip of civil defense engineering as described in this utility model.
[0016] Figure 2 This is a schematic diagram of the operating device described in this utility model.
[0017] Figure 3 This is a schematic diagram of the fixed handle structure described in this utility model.
[0018] Figure 4 This is a schematic diagram of the handle structure described in this utility model.
[0019] Figure 5 This is a schematic diagram of the connector structure described in this utility model.
[0020] Figure 6 This is a schematic diagram of the coating device described in this utility model.
[0021] Figure 7 This is a schematic diagram of the right side of the application device described in this utility model.
[0022] Figure 8 This is a schematic diagram of the connection structure between the hopper and the coating roller described in this utility model.
[0023] Figure 9 This is a schematic diagram of the coating seat structure described in this utility model.
[0024] Figure 10 This is a schematic diagram of the rack structure described in this utility model.
[0025] Figure 11 This is a schematic diagram of the hopper structure described in this utility model.
[0026] Figure 12 This is a schematic diagram of the spiral shaft structure described in this utility model. Detailed Implementation
[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
[0028] refer to Figure 1 A device for applying talcum powder to sealing strips in civil defense projects includes an operating device 100 and an application device 200.
[0029] refer to Figure 2 The operating device 100 includes an extension rod 110, a fixed handle 120 fixedly connected to the lower part of the extension rod 110, a handle 130 hinged to the fixed handle 120, a hinge joint 140 connected to the handle 130, and a steel wire rope 170 connecting the joint 140 and the rack 220 on the applicator 200. The extension rod 110 is a hollow plastic or metal tube for easy lifting by the operator. The fixed handle 120 is a hollow annular sleeve fixed to the lower part of the extension rod 110. A right-angle seat 121 is provided on one side of the fixed handle 120, and a right-angle seat hinge 122 is provided at the bottom of the right-angle seat 121. The handle 130 has a right-angle structure, and a handle first hole 131 and a handle second hole 132 are provided on both sides of one side of the handle 130. The handle first hole 131 is hinged to the right-angle seat hinge 122, and the handle second hole 132 is hinged to the joint 140.
[0030] refer to Figures 2 to 5 The applicator 200 includes an applicator seat 210, which is slidably connected to a rack 220. The rack 220 is connected to a spiral shaft 240 via gears. The spiral shaft 240 is located inside a hopper 230. An applicator roller 250 is rotatably connected to the outside of the hopper 230. A handle 130 controls the rotation of the spiral shaft 240 via a wire rope 170. When the spiral shaft 240 rotates, it applies the talcum powder inside the hopper 230 onto the applicator roller 250.
[0031] refer to Figures 2 to 5 The end face of the applicator 210 is provided with an applicator groove 212, which is slidably connected to the rack slider 221 at the bottom of the rack 220.
[0032] refer to Figures 2 to 5 A wire sleeve seat 213 is provided on one side of the coating seat groove 212. One side of the wire rope sleeve 160 is fixed in the wire sleeve seat 213. The other side of the wire rope sleeve 160 passes through multiple guide seats 150 provided in the axial direction of the extension rod 110 and is fixed in the right angle seat hole 123 on the upper part of the right angle seat 121. A wire rope 170 is provided in the wire rope sleeve 160. One side of the wire rope 170 is fixedly connected to the upper part of the connector 140, and the other side of the wire rope 170 is fixedly connected to the side of the rack 220.
[0033] refer to Figure 1A spring 310 is provided inside the rack 220 and the wire sleeve 213. The spring 310 is sleeved on the outside of the wire rope 170, and the two sides of the spring 310 abut against the inside of the wire sleeve 213 and the end face of the rack 220, respectively.
[0034] When the extension rod 110 and handle 130 are gripped with force, handle 130 rotates, and handle 130 pulls the wire rope 170 downward through connector 140. The wire rope 170 pulls the rack 220 to slide along the coating seat 210, and the spring 310 is compressed. When the hand is released, the elastic force of the spring 310 resets the rack 220, and the wire rope 170 is also reset.
[0035] refer to Figures 2 to 5 The end face of the applicator 210 is provided with an applicator hole 211. The intermediate shaft of the gear 270 is rotatably connected to the applicator hole 211. The gear 270 and the first bevel gear 280 mesh with each other. The first bevel gear 280 is fixedly connected to the upper part of the gear 270. The first bevel gear 280 and the second bevel gear 290 mesh with each other. The second bevel gear 290 is fixed on one side of the spiral shaft 240. The intermediate shaft of the spiral shaft 240 is rotatably connected to the support seat 214 on one side of the applicator 210.
[0036] refer to Figures 2 to 5 The hopper 230 is a funnel-shaped structure with a closed bottom. The inside of the hopper 230 is hollow. One side of the hopper 230 is a slender feeding cylinder 231, which allows the talc powder to be conveyed to the outside of the feeding cylinder 231. The slender feeding cylinder 231 can ensure the working space of the coating roller 250. The spiral shaft 240 is set in the hopper 230, and the outside of the spiral shaft 240 is aligned with the outside of the feeding cylinder 231. The middle shaft of the spiral shaft 240 passes through the hopper hole 232 at the bottom of the hopper 230.
[0037] refer to Figures 2 to 5 The outer side of the feeding cylinder 231 is provided with a discharge groove 233, and the inner side of the discharge groove 233 is provided with a hopper support seat 234. The intermediate shaft of the coating roller 250 is inserted into the hopper support seat 234. The outer side of the intermediate shaft of the spiral shaft 240 is fitted with a retaining ring 260. The outer side of the intermediate shaft of the spiral shaft 240 is connected with a nut. Under the action of the nut, the retaining ring 260 holds the coating roller 250 between the retaining ring 260 and the hopper support seat 234. The surface of the coating roller 250 is provided with flexible soft bristles, and the flexible soft bristles of the coating roller 250 are tightly attached to the surface of the spiral shaft 240.
[0038] Talc powder is placed in hopper 230. When handle 130 is held, wire rope 170 drives rack 220 to slide, rack 220 drives gear 270 to rotate, gear 270 rotates and drives screw shaft 240 to rotate through first bevel gear 280 and second bevel gear 290. When screw shaft 240 rotates, it conveys talc powder in hopper 230 to the outside of screw shaft 240. Because coating roller 250 and the outside of screw shaft 240 are in close contact, the talc powder conveyed to the outside of screw shaft 240 will contact the surface of coating roller 250. When the roller 250 is rotating, the talcum powder will cover the entire surface of the coating roller 250, ensuring that the talcum powder can be applied to the sealing strip. When applying the sealing strip, the amount of talcum powder on the sealing strip can be used to determine whether to feed talcum powder. Since the surface of the coating roller 250 and the spiral shaft 240 are in close contact, the talcum powder will not leak. Each time the handle is squeezed, the second hole 132 can feed talcum powder once, which ensures the amount of talcum powder on the coating roller 250 and prevents the amount of talcum powder on the coating roller 250 from being too much and falling into the air or on the ground.
[0039] When using this device, talcum powder is added to the hopper 230. The extension rod 110 is lifted, allowing the coating roller 250 to roll along the surface of the sealing strip. The talcum powder on the surface of the coating roller 250 will be applied to the sealing strip. When the amount of talcum powder on the sealing strip is insufficient, the steel wire rope 170 drives the rack 220 to slide when the handle 130 is held. The rack 220 drives the spiral shaft 240 to rotate through the gears. When the spiral shaft 240 rotates, it conveys the talcum powder in the hopper 230 to the outside of the spiral shaft 240. Since the coating roller 250 and the outside of the spiral shaft 240 are in close contact, the talcum powder conveyed to the outside of the spiral shaft 240 will make contact with the surface of the coating roller 250. When the coating roller 250 rolls, the talcum powder will cover the entire surface of the coating roller 250, ensuring that the talcum powder can be applied to the sealing strip when the coating roller 250 rolls.
[0040] The rod-shaped extension rod 110 allows the operator to roll the upper-mounted applicator roller 250 along the sealing strip without needing to be at the same height, so that the talcum powder is applied to the sealing strip. This is safe and efficient. A steel wire rope 170 is provided between the operating device 100 and the applicator 200. By holding the handle 130, the upper spiral shaft 240 can be rotated, so that the talcum powder in the hopper 230 is transported to the surface of the outer applicator roller 250. Since the surface of the applicator roller 250 and the spiral shaft 240 are in close contact, the talcum powder will not leak. The operator can control the delivery of talcum powder according to the amount of talcum powder on the sealing strip, which ensures the amount of talcum powder on the applicator roller 250 and prevents the excessive amount of talcum powder on the applicator roller 250 from falling into the air or onto the ground, thus reducing environmental pollution and the impact on human health.
Claims
1. A device for applying talcum powder to sealing strips in civil defense engineering, comprising an operating device (100) and an application device (200), characterized in that... The operating device (100) includes an extension rod (110), a fixed handle (120) is fixedly connected to the lower part of the extension rod (110), the fixed handle (120) is hinged to a handle (130), the handle (130) is hinged to a joint (140), and a steel wire rope (170) is connected between the joint (140) and the rack (220) on the applicator (200). The applicator (200) includes an applicator seat (210), the applicator seat (210) is slidably connected to the rack (220), the rack (220) is connected to a spiral shaft (240) for rotation via gears, the spiral shaft (240) is located inside the hopper (230), and the outside of the hopper (230) is rotatably connected to an applicator roller (250). The handle (130) controls the rotation of the spiral shaft (240) via the steel wire rope (170). When the spiral shaft (240) rotates, it applies the talcum powder inside the hopper (230) to the applicator roller (250).
2. The device for applying talcum powder to sealing strips in civil defense projects according to claim 1, characterized in that: The fixed handle (120) is a hollow annular sleeve, which is fixed to the lower part of the extension rod (110). A right angle seat (121) is provided on one side of the fixed handle (120), and a right angle seat hinge (122) is provided at the bottom of the right angle seat (121). The handle (130) is a right angle structure. A handle first hole (131) and a handle second hole (132) are provided on both sides of one side of the handle (130). The handle first hole (131) is hinged to the right angle seat hinge (122), and the handle second hole (132) is hinged to the joint (140).
3. The device for applying talcum powder to sealing strips in civil defense projects according to claim 1, characterized in that: The end face of the applicator (210) is provided with an applicator groove (212), which is slidably connected to the rack slider (221) at the bottom of the rack (220).
4. The device for applying talcum powder to sealing strips in civil defense projects according to claim 3, characterized in that: The coating seat groove (212) is provided with a wire sleeve seat (213) on one side. The wire rope sleeve (160) is fixed in the wire sleeve seat (213) on one side. The other side of the wire rope sleeve (160) passes through multiple guide seats (150) set in the axial direction of the extension rod (110) and is fixed in the right angle seat hole (123) on the upper part of the right angle seat (121). The wire rope sleeve (160) is provided with a wire rope (170). The upper part of the connector (140) is fixedly connected to one side of the wire rope (170), and the side of the rack (220) is fixedly connected to the other side of the wire rope (170).
5. The device for applying talcum powder to sealing strips in civil defense projects according to claim 1, characterized in that... The rack (220) and the wire sleeve (213) are provided with springs (310) on the inner side, and the springs (310) are sleeved on the outer side of the wire rope (170).
6. The device for applying talcum powder to sealing strips in civil defense projects according to claim 1, characterized in that: The end face of the application seat (210) is provided with an application seat hole (211). The intermediate shaft of the gear (270) is rotatably connected to the application seat hole (211). The gear (270) and the first bevel gear (280) mesh with each other. The upper part of the gear (270) is fixedly connected to the first bevel gear (280). The first bevel gear (280) and the second bevel gear (290) mesh with each other. The second bevel gear (290) is fixed on one side of the spiral shaft (240). The intermediate shaft of the spiral shaft (240) is rotatably connected to the support seat (214) on one side of the application seat (210).
7. The device for applying talcum powder to sealing strips in civil defense projects according to claim 1, characterized in that... The hopper (230) is a funnel-shaped structure with a closed bottom. The inside of the hopper (230) is hollow. One side of the hopper (230) is a slender feeding cylinder (231), which allows the talc powder to be transported to the outside of the feeding cylinder (231). The slender feeding cylinder (231) can ensure the working space of the coating roller (250). The spiral shaft (240) is set in the hopper (230). The outside of the spiral shaft (240) is aligned with the outside of the feeding cylinder (231). The middle shaft of the spiral shaft (240) passes through the hopper hole (232) at the bottom of the hopper (230).
8. The device for applying talcum powder to sealing strips in civil defense projects according to claim 7, characterized in that... The feeding cylinder (231) is provided with a discharge groove (233) on the outside and a hopper support seat (234) on the inside of the discharge groove (233). The intermediate shaft of the coating roller (250) is inserted into the hopper support seat (234). A retaining ring (260) is fitted on the outside of the intermediate shaft of the spiral shaft (240). A nut is connected to the outside of the intermediate shaft of the spiral shaft (240). Under the action of the nut, the retaining ring (260) holds the coating roller (250) between the retaining ring (260) and the hopper support seat (234). The surface of the coating roller (250) is provided with flexible soft hairs. The flexible soft hairs of the coating roller (250) are closely attached to the surface of the spiral shaft (240).