A telescopic fire rescue hook

Abstract

The utility model discloses a telescopic fire prevention rescue hook belongs to fire prevention rescue hook technical field, and its technical key points include telescopic link, the telescopic link front end detachable connection has the connecting head, is equipped with the hook and pushes the material pole on the connecting head, is hinged with the folding pick head on the connecting head one side, is equipped with the fixed component between the connecting head and folding pick head, is equipped with the magnetic attraction component on the connecting head below folding pick head, under the folding state, folding pick head bottom surface and connecting head outer wall close parallel and cooperate with magnetic attraction component, the utility model aims at providing a telescopic fire prevention rescue hook with convenient operation, multiple functions, is used for fire prevention rescue.

Description

Technical Field

[0001] This utility model relates to a rescue hook, and more specifically, to a retractable fire rescue hook. Background Technology

[0002] Fire hooks are pieces of equipment used by firefighters in fire rescue operations. They typically have a long pole and a sharp hook, and are used to clear away debris from a fire scene to search for survivors or valuables. Fire hooks prevent firefighters from directly contacting fire debris, protecting their bodies from injury, and also improve the efficiency of firefighters in breaking through debris and searching.

[0003] Most existing fire hooks are of fixed length, which not only prevents them from being flexibly adjusted to meet usage needs and limits their application distance, but also makes them difficult to disassemble and replace when damaged, requiring replacement of the entire hook, which is costly. Furthermore, they are difficult to clear burning materials with firmly attached roots, such as burning trees in the wild, where the roots are deeply embedded in the ground and cannot be pulled apart directly with hooks, requiring the use of additional tools such as picks for digging. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a retractable fire rescue hook that is easy to operate and has multiple functions.

[0005] The technical solution of this utility model is implemented as follows: a retractable fire rescue hook includes a telescopic rod, the front end of which is detachably connected to a connector, and the connector is provided with a hook and a push rod; a folding pick is hinged to one side of the connector, and a fixing component is provided between the connector and the folding pick; a magnetic suction component is provided on the connector below the folding pick; in the folded state, the bottom surface of the folding pick is nearly parallel to the outer wall of the connector and cooperates with the magnetic suction component.

[0006] In the aforementioned retractable fire rescue hook, the fixing component includes a positioning block disposed on the folding pick head, and a positioning groove that mates with the positioning block is provided on the connector on the upper side of the folding pick head; the positioning block is provided with a positioning hole, and a first elastic pin assembly that mates with the positioning hole is provided on the positioning groove.

[0007] In the aforementioned retractable fire rescue hook, the first elastic pin assembly includes a first mounting hole provided on both sides of the positioning groove, a second mounting hole provided on the connector below the positioning groove, and a U-shaped first pin provided in the first mounting hole and the second mounting hole; a first pressing head is detachably provided at one end of the first pin located in the second mounting hole, a first guide groove is provided at one end of the second mounting hole near the first pressing head, and a first spring is provided on the first pin between the first pressing head and the inner end face of the first guide groove.

[0008] In the above-mentioned retractable fire rescue hook, the front end of the first pin is spherical, and the front end of the positioning block is provided with an inclined guide surface on the side near the first pin; when the front end of the positioning block contacts the front end of the first pin, the front end of the first pin moves along the inclined guide surface to the positioning hole.

[0009] In the aforementioned retractable fire rescue hook, the first pressing head is threadedly connected to the end of the first pin. Corresponding positioning pin holes are provided radially on the first pressing head and the first pin, and a pin is inserted in the positioning pin hole to prevent the first pressing head from rotating.

[0010] In the aforementioned retractable fire rescue hook, the connector includes a mounting post, and the hook and push rod are integrally formed at the front end of the mounting post; a threaded post is integrally formed at the rear end of the mounting post, and the front end of the telescopic rod is threadedly connected to the threaded post; a limiting component for preventing radial rotation of the threaded post is provided between the threaded post and the telescopic rod.

[0011] In the aforementioned retractable fire rescue hook, the limiting component includes a limiting elongated hole provided on the threaded post, and a second elastic pin assembly that mates with the limiting elongated hole is provided at the proximal end of the telescopic rod; when the threaded post is threadedly connected to the telescopic rod, the limiting elongated hole and the second elastic pin assembly correspond to each other.

[0012] In the aforementioned retractable fire rescue hook, the second elastic pin assembly includes a third mounting hole disposed on the side wall of the telescopic rod and opposite to the limiting elongated hole, a fourth mounting hole disposed on the side wall of the telescopic rod below the third mounting hole, and a U-shaped second pin disposed in the third mounting hole and the fourth mounting hole; the length of the end of the second pin located in the third mounting hole is not greater than half the diameter of the telescopic rod.

[0013] The second pin is detachably provided with a second pressing head at one end of the fourth mounting hole, and a second guide groove is provided inside the telescopic rod. A second spring is provided on the second pin between the second pressing head and the inner end face of the second guide groove.

[0014] In the aforementioned retractable fire rescue hook, the magnetic suction assembly includes an installation slot on the connector head, a protective box inside the installation slot, and a strong magnetic block inside the protective box; a sealing plate is fixedly installed at the opening end of the installation slot to prevent the protective box from falling off.

[0015] In the aforementioned retractable fire rescue hook, the end of the telescopic rod away from the connector is provided with an anti-slip handle.

[0016] With the above-described structure, the connector can be detachably mounted on the telescopic rod, allowing for length adjustment and adaptability to various operating environments. Furthermore, when the hook or pusher rod is damaged, the connector can be disassembled and replaced individually, reducing operating costs. Additionally, firefighters entering a fire scene only need to carry a spare connector, eliminating the need to carry multiple complete spare rescue hooks, making it more convenient to carry.

[0017] The folding pickaxe installed on the connector can be used when digging is required, improving rescue efficiency and eliminating the need to carry a separate pickaxe, allowing firefighters to operate with less equipment. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 3 This is a partial structural diagram of point A of this utility model.

[0022] Figure 4 This is a structural schematic diagram of the connector of this utility model.

[0023] Figure 5 This is a cross-sectional structural diagram of the connector of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the folding pickaxe head of this utility model.

[0025] In the diagram: 1. Telescopic rod; 2. Connector; 2a. Mounting post; 2b. Threaded post; 3. Hook; 4. Push rod; 5. Folding pick; 6. Fixing assembly; 6a. Positioning block; 6b. Positioning groove; 6c. Positioning hole; 7. Magnetic assembly; 7a. Mounting slot; 7b. Protective box; 7c. Strong magnet; 7d. Sealing plate; 8. First elastic pin assembly; 8a. First mounting hole; 8b. Second mounting hole; 8c. First pin; 8d. First pressing head; 8e. First guide groove; 8f. First spring; 8g. Inclined guide surface; 8h. Positioning pin hole; 9. Limiting assembly; 10. Limiting slot; 11. Second elastic pin assembly; 11a. Third mounting hole; 11b. Fourth mounting hole; 11c. Second pin; 11d. Second pressing head; 11e. Second guide groove; 11f. Second spring; 12. Anti-slip handle. Detailed Implementation

[0026] See Figure 1-6As shown, this utility model discloses a retractable fire rescue hook, comprising a telescopic rod 1, with a connector 2 detachably connected to the front end of the telescopic rod 1. A hook 3 and a pusher rod 4 are provided on the connector 2. A folding pick 5 is hinged to one side of the connector 2, and a fixing component 6 is provided between the connector 2 and the folding pick 5. A magnetic suction component 7 is provided on the connector 2 below the folding pick 5. In the folded state, the bottom surface of the folding pick 5 is nearly parallel to the outer wall of the connector 2 and engages with the magnetic suction component 7. When using the folding pick 5, rotate it to an angle of 75-85° with the connector and then fix it using the fixing component. When the folding pick 5 is not in use, fix it using the magnetic suction component to prevent the folding pick 5 from shaking and affecting the operation of the hook and pusher rod.

[0027] The connector is detachably mounted on the telescopic pole, allowing for length adjustment to adapt to various operating environments. Furthermore, the connector can be detached and replaced individually when the hook or pusher is damaged, reducing operating costs. Firefighters only need to carry a spare connector when entering a fire scene, eliminating the need to carry multiple complete spare rescue hooks, making it convenient to transport.

[0028] The folding pickaxe installed on the connector can be used when digging is required, improving rescue efficiency and eliminating the need to carry a separate pickaxe, allowing firefighters to operate with less equipment.

[0029] In this embodiment, the fixing component 6 includes a positioning block 6a disposed on the folding pick head 5, and a positioning groove 6b that mates with the positioning block 6a is provided on the connector 2 on the upper side of the folding pick head 5; the positioning block 6a is provided with a positioning hole 6c, and a first elastic pin assembly 8 that mates with the positioning hole 6c is provided on the positioning groove 6b. When the folding pick head rotates to an angle of 75-85° with the connector head, the positioning block is located in the positioning groove and one outer wall of the positioning block contacts the bottom of the positioning groove for positioning, while the first elastic pin assembly is inserted into the positioning hole to fix the positioning block.

[0030] In this embodiment, preferably, the first elastic pin assembly 8 includes first mounting holes 8a on both sides of the positioning groove 6b, and a second mounting hole 8b on the connector 2 below the positioning groove 6b. A U-shaped first pin 8c is provided in both the first and second mounting holes 8a. A first pressing head 8d is detachably provided at one end of the first pin 8c located in the second mounting hole 8b. A first guide groove 8e is provided at the end of the second mounting hole 8b near the first pressing head 8d. A first spring 8f is provided on the first pin 8c between the inner end face of the first pressing head 8d and the first guide groove 8e. The first pressing head pushes the first pin to move, causing the other end of the first pin to move out of the positioning hole. With the U-shaped structure, the movement stroke of the first pin is located in the first guide groove inside the connector, which can reduce the length of the first pin outside the connector and avoid interference during use.

[0031] More preferably, the front end of the first pin 8c is spherical, and the front end of the positioning block 6a is provided with an inclined guide surface 8g on the side near the first pin 8c. When the front end of the positioning block 6a contacts the front end of the first pin 8c, the front end of the first pin 8c moves along the inclined guide surface 8g to the positioning hole 6c. With this structure, the positioning block automatically pushes open the first pin during rotation by engaging with the spherical front end of the first pin through the inclined guide surface, enabling the first pin to automatically engage with the positioning hole, facilitating operation and improving the efficiency of fire rescue.

[0032] In this embodiment, the first pressing head 8d is threadedly connected to the end of the first pin 8c. Corresponding locating pin holes 8h are provided radially on both the first pressing head 8d and the first pin 8c. A pin is inserted into the locating pin hole 8h to prevent the first pressing head 8d from rotating. This structure facilitates the installation of the first pin into the first mounting hole and the second mounting hole, and the pin radially restricts the first pressing head, preventing it from rotating and falling off. Alternatively, the pin can also be a screw or other commonly used structure.

[0033] In this embodiment, the connector 2 includes a mounting post 2a, with the hook 3 and push rod 4 integrally formed at the front end of the mounting post 2a; a threaded post 2b is integrally formed at the rear end of the mounting post 2a, and the front end of the telescopic rod 1 is threadedly connected to the threaded post 2b; a limiting component 9 is provided between the threaded post 2b and the telescopic rod 1 to prevent radial rotation of the threaded post 2b. After the threaded post and the telescopic rod are threadedly connected, there is only a possibility of radial rotation, while axial movement is restricted by the thread. By using the limiting component to radially restrict the threaded post, the connector can be effectively prevented from falling off during use.

[0034] Preferably, the limiting component 9 includes a limiting elongated hole 10 disposed on the threaded post 2b, and a second elastic pin component 11 that mates with the limiting elongated hole 10 is provided near the front end of the telescopic rod 1. When the threaded post 2b is threadedly connected to the telescopic rod 1, the limiting elongated hole 10 and the second elastic pin component 11 correspond to each other. By setting a corresponding thread length, the positions of the limiting elongated hole and the second elastic pin component are aligned during installation, and the limiting elongated hole and the second elastic pin component correspond to each other after the threaded post is screwed into the telescopic rod. In addition, corresponding positioning marks can be set on the threaded post and the telescopic rod to determine the position during installation.

[0035] The use of a limiting elongated hole facilitates the insertion and engagement of the second elastic pin assembly. Furthermore, after the threaded column and the telescopic rod are connected by threads, there is only a possibility of rotation in the radial direction. The axial direction is restricted by the threads and cannot move, so there is no need to limit the axial direction.

[0036] More preferably, the second elastic pin assembly 11 includes a third mounting hole 11a disposed on the side wall of the telescopic rod 1 and opposite to the limiting elongated hole 10, and a fourth mounting hole 11b disposed on the side wall of the telescopic rod 1 below the third mounting hole 11a. A U-shaped second pin 11c is disposed in the third mounting hole 11a and the fourth mounting hole 11b. The length of the end of the second pin 11c located in the third mounting hole 11a is not greater than half the diameter of the telescopic rod 1. The shorter length of the end of the second pin located in the third mounting hole can effectively reduce the travel of the second pin.

[0037] The second pin 11c has a detachable second pressing head 11d at one end of the fourth mounting hole 11b. A second guide groove 11e is provided inside the telescopic rod 1. A second spring 11f is provided on the second pin 11c between the inner end face of the second pressing head 11d and the second guide groove 11e. The second pressing head pushes the first pin to move, causing the other end of the second pin to move out of the positioning hole. With the second pin adopting a U-shaped structure, the movement stroke of the second pin is located in the second guide groove inside the connector, and the second guide groove is set inside the telescopic rod, which can reduce the length of the second pin outside the connector and avoid interference during use.

[0038] In this embodiment, the magnetic attraction assembly 7 includes a mounting slot 7a disposed on the connector 2, a protective box 7b disposed within the mounting slot 7a, and a strong magnetic block 7c loaded within the protective box 7b; a sealing plate 7d is fixedly disposed at the open end of the mounting slot 7a to prevent the protective box 7c from falling off. The sealing plate is welded to the connector to prevent the protective box from falling off. The protective box protects the strong magnetic block, preventing it from being broken by impact during use and thus affecting the attraction capacity.

[0039] In this embodiment, an anti-slip handle 12 is provided at the end of the telescopic rod 1 away from the connector 2. The anti-slip handle prevents slippage during use and improves safety.

[0040] In use, press and hold the second pressing head to align the connector and screw it into the front end of the telescopic rod. After the threaded column is rotated into place, release the second pressing head to allow the second pin to engage with the positioning hole to complete the assembly. Adjust the telescopic rod to the appropriate length for rescue operations. When a pickaxe is needed, rotate the folding pickaxe to allow the positioning block to enter the positioning groove. The first pin, guided by the inclined guide surface, engages with the positioning hole to complete the fixation.

[0041] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.

Claims

1. A retractable fire rescue hook, comprising a telescopic rod (1), characterized in that, The telescopic rod (1) is detachably connected to a connector (2) at its front end. A hook (3) and a push rod (4) are provided on the connector (2). A folding pick (5) is hinged to one side of the connector (2). A fixing component (6) is provided between the connector (2) and the folding pick (5). A magnetic suction component (7) is provided on the connector (2) below the folding pick (5). In the folded state, the bottom surface of the folding pick (5) is nearly parallel to the outer wall of the connector (2) and cooperates with the magnetic suction component (7).

2. The retractable fire rescue hook according to claim 1, characterized in that, The fixing component (6) includes a positioning block (6a) disposed on the folding pick head (5), and a positioning groove (6b) that cooperates with the positioning block (6a) is provided on the connector (2) on the upper side of the folding pick head (5); the positioning block (6a) is provided with a positioning hole (6c), and a first elastic pin assembly (8) that cooperates with the positioning hole (6c) is provided on the positioning groove (6b).

3. The retractable fire rescue hook according to claim 2, characterized in that, The first elastic pin assembly (8) includes a first mounting hole (8a) provided on both sides of the positioning groove (6b), and a second mounting hole (8b) provided on the connector (2) below the positioning groove (6b). A U-shaped first pin (8c) is provided in the first mounting hole (8a) and the second mounting hole (8b). A first pressing head (8d) is detachably provided at one end of the first pin (8c) located in the second mounting hole (8b). A first guide groove (8e) is provided at one end of the second mounting hole (8b) near the first pressing head (8d). A first spring (8f) is provided on the first pin (8c) between the first pressing head (8d) and the inner end face of the first guide groove (8e).

4. A retractable fire rescue hook according to claim 3, characterized in that, The front end of the first pin (8c) is spherical, and the front end of the positioning block (6a) is provided with an inclined guide surface (8g) on ​​the side near the first pin (8c); when the front end of the positioning block (6a) contacts the front end of the first pin (8c), the front end of the first pin (8c) moves along the inclined guide surface (8g) to the positioning hole (6c).

5. A retractable fire rescue hook according to claim 3, characterized in that, The first pressing head (8d) is threaded to the end of the first pin (8c). Corresponding positioning pin holes (8h) are provided on the first pressing head (8d) and the first pin (8c) in the radial direction. A pin is inserted in the positioning pin hole (8h) to prevent the first pressing head (8d) from rotating.

6. A retractable fire rescue hook according to claim 1, characterized in that, The connector (2) includes a mounting post (2a), the hook (3) and the push rod (4) are integrally formed at the front end of the mounting post (2a); a threaded post (2b) is integrally formed at the rear end of the mounting post (2a), and the front end of the telescopic rod (1) is threadedly connected to the threaded post (2b); a limiting component (9) for preventing the threaded post (2b) from rotating radially is provided between the threaded post (2b) and the telescopic rod (1).

7. A retractable fire rescue hook according to claim 6, characterized in that, The limiting component (9) includes a limiting elongated hole (10) provided on the threaded post (2b), and a second elastic pin component (11) that cooperates with the limiting elongated hole (10) is provided at the near end of the front end of the telescopic rod (1); when the threaded post (2b) is threadedly connected to the telescopic rod (1), the limiting elongated hole (10) and the second elastic pin component (11) correspond to each other.

8. A retractable fire rescue hook according to claim 7, characterized in that, The second elastic pin assembly (11) includes a third mounting hole (11a) disposed on the side wall of the telescopic rod (1) and opposite to the limiting elongated hole (10), and a fourth mounting hole (11b) disposed on the side wall of the telescopic rod (1) below the third mounting hole (11a). A second pin (11c) in the shape of a U is disposed in the third mounting hole (11a) and the fourth mounting hole (11b); the length of the end of the second pin (11c) located in the third mounting hole (11a) is not greater than half the diameter of the telescopic rod (1); The second pin (11c) is detachably provided with a second pressing head (11d) at one end of the fourth mounting hole (11b). A second guide groove (11e) is provided in the telescopic rod (1). A second spring (11f) is provided on the second pin (11c) between the second pressing head (11d) and the inner end face of the second guide groove (11e).

9. A retractable fire rescue hook according to claim 1, characterized in that, The magnetic suction assembly (7) includes an installation slot (7a) provided on the connector (2), a protective box (7b) is provided in the installation slot (7a), and a strong magnetic block (7c) is loaded in the protective box (7b); a sealing plate (7d) is fixedly provided at the open end of the installation slot (7a) to prevent the protective box (7b) from falling off.

10. A retractable fire rescue hook according to claim 1, characterized in that, The telescopic rod (1) is provided with an anti-slip sleeve (12) at the end away from the connector (2).

Images