Container door safety protector
By installing a safety protector on the container door and using a permanent magnet and a differential locking mechanism, the problem of rapid opening of the box door caused by the pouring of goods is solved, and safety protection is achieved and safety accidents are avoided.
Patent Information
- Application Number
- CN202421142374.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the transportation or storage process, the box door will be opened quickly due to external factors during the container, which may cause safety accidents.
Design a container door safety guard, including a housing, winding mechanism, a seat belt, a hook and a differential locking mechanism, and is adsorbed on the box door by permanent magnets, and the safety belt hooks the locking rod and a differential locking mechanism Lock the winding barrel when the goods are pouring to prevent the box door from opening too fast.
Effectively prevent the box door from opening too fast, avoid safety accidents, and ensure the safety of operators.
Smart Images
Figure CN222248545U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of container door opening and closing protection, and specifically discloses a container door safety protector. Background Art
[0002] A container is a large cargo container with certain strength, rigidity and specifications for turnover. Container doors can be divided into many types according to the material and design, including wooden doors, metal doors, aluminum alloy doors, etc. All-steel materials have a high carbon content and are heavy, but they have high strength, good corrosion resistance and long service life. Steel-aluminum composite materials combine the advantages of steel and aluminum, with light weight and good strength. Common container doors use double doors. Double-door containers are equipped with two doors on both sides. The two doors open symmetrically, which is convenient for large-scale entry and exit of goods, safer and easier to maintain balance. Each door is equipped with two locking rods for locking, and the container door is opened and closed by the locking rods.
[0003] When using containers to transport or store goods, the containers may be affected by external factors, such as impact, vibration, and shaking of waves. These factors may cause the goods inside the container to loosen or shift, pile up at the container door, and instantly rush out when the staff opens the door, causing the door to open at an extremely fast speed, which can easily cause safety accidents. Utility Model Content
[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a container door safety protector to solve the problem that cargo inside the container is piled up at the container door end and instantly rushes out when the staff opens the door, causing the door to open at an extremely fast speed, which is very likely to cause safety accidents.
[0005] To achieve the above purpose, the technical solution of the utility model is:
[0006] A container door safety protector comprises a shell, a winding mechanism is arranged in the shell, a safety belt is wound on the winding mechanism, a hook is connected to the end of the safety belt, and a differential locking mechanism is arranged in the shell; the differential locking mechanism is connected to the winding mechanism; the differential locking mechanism has a locking state for locking the winding mechanism, and an unlocking state for unlocking the winding mechanism; the winding mechanism comprises a winding drum; the winding drum is wound with four safety belts; four openings are evenly arranged on the shell in a circumferential direction; the safety belt extends outward after passing through the opening; and a permanent magnet is arranged on the bottom surface of the shell. When in use, the shell is adsorbed on the container door by a permanent magnet, and the four safety belts on the winding drum are extended from the four openings on the shell respectively. The hooks on two of the safety belts hook the locking rods on the inside of the left container door, and the hooks on the other two safety belts hook the locking rods on the inside of the right container door. When the cargo spills and causes the door to open too quickly, the differential locking mechanism is used to lock the winding drum of the winding mechanism, and the safety belts are used to prevent the door from continuing to open, thereby avoiding safety accidents.
[0007] Preferably, the differential locking mechanism comprises ratchets fixedly arranged at the upper and lower ends of the winding drum and a differential rotation assembly; the differential rotation assembly is arranged in conjunction with the ratchet; and the differential rotation assembly can lock the ratchet when rotating at high speed.
[0008] Preferably, the winding drum includes a cylinder; four winding rods are placed in the cylinder; the winding rod is connected to one end of the safety belt; two openings 2 are provided on the side wall of the cylinder; the two openings 2 are symmetrically arranged with the cylinder as the center line; the safety belt is wound on the cylinder after passing through the openings 2; ratchets are fixedly arranged at both ends of the cylinder; the ratchet at the upper end is rotatably arranged on the shell; a fixed seat is threadedly arranged in the middle part of the ratchet at the lower end; and the bottom surface of the fixed seat is rotatably arranged on the shell.
[0009] Preferably, the differential rotation assembly includes a pawl; a rotating shaft is fixedly arranged in the middle of the pawl; the rotating shaft is rotatably arranged on the shell; a spring 1 is connected to one end of the pawl; the end of the spring 1 away from the pawl is fixedly arranged on the side wall of the shell; a boss is fixedly arranged on the other end of the pawl; a rotating block is rotatably arranged at the edge of the ratchet at the upper end of the cylinder; the rotating block can move the boss when the ratchet rotates at high speed.
[0010] Preferably, the rotating block comprises a main body; the main body is rotatably arranged on the ratchet; an extension arm is fixedly arranged at one end of the main body; and a shifting block is fixedly arranged at the end of the extension arm. The arrangement of the extension arm and the shifting block enables the rotating block to be eccentrically rotatably arranged on the ratchet, and when the ratchet rotates at a high speed, sufficient centrifugal force can be ensured to overcome the elastic force of the spring to shift the protruding column.
[0011] Preferably, one end of the extension arm away from the shifting block is fixedly connected to a second spring, and one end of the second spring away from the extension arm is fixedly arranged on the ratchet. The arrangement of the second spring can limit the rotation of the rotating block when the ratchet rotates at a low speed, thereby avoiding the shifting of the convex column.
[0012] Preferably, the ratchet wheel at the lower end of the cylinder is connected to a spiral spring, and the inner end of the spiral spring is fixedly arranged on the housing. The arrangement of the spiral spring facilitates the resetting of the winding drum.
[0013] Preferably, the hook comprises a hook body; a movable head is hinged at the end of the hook body; the movable head is connected to the hook body through a spring; a connecting rod is fixedly provided at one end of the hook body away from the movable head; and a radial through hole is radially provided on the connecting rod.
[0014] The beneficial effects of the utility model are as follows: when in use, the shell is adsorbed on the container door by means of a permanent magnet, and the four safety belts on the winding drum are respectively extended from the four openings on the shell, wherein the hooks on two of the safety belts hook the locking rods on the inner side of the left container door, and the hooks on the other two safety belts hook the locking rods on the inner side of the right container door; when the cargo spills and causes the door to open too quickly, the differential locking mechanism is used to lock the winding drum of the winding mechanism, and the safety belt is used to prevent the door from continuing to open, thereby avoiding safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a schematic diagram of a partially cutaway structure of the utility model;
[0018] Figure 3 The partial cutaway structure of the winding drum and differential locking mechanism of the utility model is shown in FIG. Figure 1 ;
[0019] Figure 4 The partial cutaway structure of the winding drum and differential locking mechanism of the utility model is shown in FIG. Figure 2 ;
[0020] Figure 5 It is a structural schematic diagram of the rotating block of the utility model;
[0021] Figure 6 It is a structural schematic diagram of the hook of the utility model.
[0022] Description of reference numerals:
[0023] 1-housing, 2-safety belt, 3-hook, 4-winding drum, 5-ratchet, 6-pawl, 7-rotating shaft, 8-spring one, 9-convex column, 10-rotating block, 11-spring two, 12-volute spring; 101-opening one; 301-hook body, 302-movable head, 303-spring three, 304-connecting rod, 305-radial through hole; 401-cylinder, 402-winding rod, 403-opening two, 404-fixed seat; 1001-main body, 1002-extension arm, 1003-shift block. DETAILED DESCRIPTION
[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.
[0025] like Figure 1-6 As shown, a container door safety protector comprises a housing 1, a winding mechanism is arranged in the housing 1, a safety belt 2 is wound on the winding mechanism, a hook 3 is connected to the end of the safety belt 2, a differential locking mechanism is arranged in the housing 1; the differential locking mechanism is connected to the winding mechanism; the differential locking mechanism has a locking state of locking the winding mechanism, and the differential locking mechanism has an unlocking state of unlocking the winding mechanism; the winding mechanism comprises a winding drum 4; the winding drum 4 winds four safety belts 2; four openings 101 are evenly arranged on the housing 1 along the circumferential direction; the safety belt 2 extends outward after passing through the opening 101; a permanent magnet is arranged on the bottom surface of the housing 1. The hook 3 comprises a hook body 301; a movable head 302 is hinged at the end of the hook body 301; the movable head 302 is connected to the hook body 301 through a spring 303; a connecting rod 304 is fixedly arranged at one end of the hook body 301 away from the movable head 302; the connecting rod 304 is radially arranged with a radial through hole 305. The radial through hole 305 is provided to facilitate the connection of the safety belt 2 .
[0026] In the above arrangement, the differential locking mechanism includes a ratchet 5 fixedly arranged at the upper and lower ends of the winding drum 4 and a differential rotation assembly; the differential rotation assembly is arranged in conjunction with the ratchet 5; and the differential rotation assembly can lock the ratchet 5 when rotating at high speed. The winding drum 4 includes a cylinder 401; four winding rods 402 are placed in the cylinder 401; the winding rod 402 is connected to one end of the safety belt 2; two openings 2 403 are arranged on the side wall of the cylinder 401; the two openings 2 403 are arranged symmetrically with the cylinder 401 as the center line; the safety belt 2 is wound on the cylinder 401 after passing through the openings 2 403; ratchet 5 is fixedly arranged at both the upper and lower ends of the cylinder 401; the ratchet 5 at the upper end is rotatably arranged on the housing 1; a fixing seat 404 is threadedly arranged in the middle of the ratchet 5 at the lower end; and the bottom surface of the fixing seat 404 is rotatably arranged on the housing 1. The differential rotation assembly includes a pawl 6; a rotating shaft 7 is fixedly arranged in the middle of the pawl 6; the rotating shaft 7 is rotatably arranged on the housing 1; a spring 8 is connected to one end of the pawl 6; the end of the spring 8 away from the pawl 6 is fixedly arranged on the side wall of the housing 1; a boss 9 is fixedly arranged on the other end of the pawl 6; a rotating block 10 is rotatably arranged at the edge of the ratchet 5 at the upper end of the cylinder 401; the rotating block 10 can move the boss 9 when the ratchet 5 rotates at a high speed, thereby driving the pawl 6 to rotate around the rotating shaft 7, and the claw at the other end of the pawl 6 engages the ratchet 5 to lock the ratchet 5.
[0027] The rotating block 10 includes a main body 1001; the main body 1001 is rotatably arranged on the ratchet 5; an extension arm 1002 is fixedly arranged at one end of the main body 1001; and a shifting block 1003 is fixedly arranged at the end of the extension arm 1002. The arrangement of the extension arm 1002 and the shifting block 1003 can make the rotating block 10 eccentrically rotatably arranged on the ratchet 5, and can ensure that sufficient centrifugal force overcomes the elastic force of the spring 18 to shift the protruding column 9 when the ratchet 5 rotates at a high speed. A spring 2 11 is fixedly connected to one end of the extension arm 1002 away from the shifting block 1003; and the spring 2 11 is fixedly arranged on the ratchet 5 at one end away from the extension arm 1002. The arrangement of the spring 2 11 can limit the rotation of the rotating block 10 when the ratchet 5 rotates at a low speed to avoid shifting the protruding column 9.
[0028] In order to facilitate the resetting of the winding drum 4 , the ratchet 5 at the lower end of the cylinder 401 is connected to a spiral spring 12 ; the inner end of the spiral spring 12 is fixedly arranged on the housing 1 .
[0029] When in use, the shell 1 is adsorbed on the container door by a permanent magnet, and the four safety belts 2 on the winding drum 4 are respectively extended from the four openings 101 on the shell 1. The hooks 3 on two of the safety belts 2 are hooked on the locking rods on the inner side of the left container door, and the hooks on the other two safety belts 2 are hooked on the locking rods on the inner side of the right container door. When the cargo spills and causes the door to open too fast, the differential locking mechanism is used to lock the winding drum of the winding mechanism, and the safety belt 2 is used to prevent the door from continuing to open, so as to avoid safety accidents.
[0030] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions shall be within the scope of the utility model / any person of ordinary skill in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the utility model, and they shall be within the scope of protection of the utility model. Therefore, the scope of protection of the utility model shall be based on the scope of protection of the claims.
Claims
1. A container door safety protector, comprising a housing (1), a winding mechanism being arranged in the housing (1), a safety belt (2) being wound on the winding mechanism, and a hook (3) being connected to an end of the safety belt (2), wherein: A differential locking mechanism is arranged in the housing (1); the differential locking mechanism is connected to the winding mechanism; the differential locking mechanism has a locking state in which the winding mechanism is locked, and an unlocking state in which the winding mechanism is unlocked; the winding mechanism comprises a winding drum (4); the winding drum (4) winds four safety belts (2); four openings (101) are evenly arranged on the housing (1) along the circumferential direction; the safety belt (2) extends outward after passing through the opening (101); and a permanent magnet is arranged on the bottom surface of the housing (1).
2. The container door safety protector according to claim 1, characterized in that: The differential locking mechanism comprises a ratchet (5) fixedly arranged at the upper and lower ends of the winding drum (4) and a differential rotation assembly; the differential rotation assembly is arranged in conjunction with the ratchet (5); and the differential rotation assembly can lock the ratchet (5) when rotating at a high speed.
3. The container door safety protector according to claim 2, characterized in that: The winding drum (4) comprises a cylinder (401); four winding rods (402) are placed in the cylinder (401); the winding rod (402) is connected to one end of the safety belt (2); two openings (403) are arranged on the side wall of the cylinder (401); the two openings (403) are symmetrically arranged with the cylinder (401) as the center line; the safety belt (2) passes through the openings (403) and is wound on the cylinder (401); ratchets (5) are fixedly arranged at both the upper and lower ends of the cylinder (401); the ratchet (5) at the upper end is rotatably arranged on the housing (1); a fixing seat (404) is threadedly arranged in the middle of the ratchet (5) at the lower end; and the bottom surface of the fixing seat (404) is rotatably arranged on the housing (1).
4. The container door safety protector according to claim 3, characterized in that: The differential rotation assembly comprises a pawl (6); a rotating shaft (7) is fixedly arranged in the middle of the pawl (6); the rotating shaft (7) is rotatably arranged on the housing (1); one end of the pawl (6) is connected to a spring 1 (8); the end of the spring 1 (8) away from the pawl (6) is fixedly arranged on the side wall of the housing (1); a boss (9) is fixedly arranged on the other end of the pawl (6); a rotating block (10) is rotatably arranged at the edge of the ratchet wheel (5) at the upper end of the cylinder (401); and the rotating block (10) can move the boss (9) when the ratchet wheel (5) rotates at a high speed.
5. The container door safety protector according to claim 4, characterized in that: The rotating block (10) comprises a main body (1001); the main body (1001) is rotatably arranged on the ratchet wheel (5); an extension arm (1002) is fixedly arranged at one end of the main body (1001); and a shifting block (1003) is fixedly arranged at the end of the extension arm (1002).
6. The container door safety protector according to claim 5, characterized in that: One end of the extension arm (1002) away from the shifting block (1003) is fixedly connected to a second spring (11); and one end of the second spring (11) away from the extension arm (1002) is fixedly arranged on the ratchet (5).
7. The container door safety protector according to claim 6, characterized in that: The ratchet wheel (5) at the lower end of the cylinder (401) is connected to a volute spring (12); the inner end of the volute spring (12) is fixedly arranged on the housing (1).
8. The container door safety protector according to claim 1, characterized in that: The hook (3) comprises a hook body (301); a movable head (302) is hingedly connected to the end of the hook body (301); the movable head (302) is connected to the hook body (301) via a spring three (303); a connecting rod (304) is fixedly provided at one end of the hook body (301) away from the movable head (302); and a radial through hole (305) is provided along the radial direction of the connecting rod (304).