Gas cylinder back frame

Abstract

The utility model discloses a gas cylinder back frame, and particularly relates to the technical field of gas cylinder installation, the gas cylinder back frame comprises a main body support, waistband connecting pieces are symmetrically arranged on the outer wall of the lower portion of the main body support, one ends of the opposite outer sides of the waistband connecting pieces are connected with waistbands, and one ends of the opposite outer sides of the two waistbands are respectively connected with a male buckle and a female buckle. By means of the fixing mechanism and the limiting assembly, the position of the clamping plate can be adjusted according to the specifications of gas cylinders, so that the gas cylinder fixing device can be matched with the gas cylinders of different specifications to be fixed and used, the application range of the gas cylinder fixing device is wider, the first two-way screw can be limited and fixed after adjustment, and the gas cylinder fixing device is convenient to use and high in practicability. The situation that rotation of the first two-way screw is accidentally touched, so that the position of the adjusted clamping plate is affected is avoided, the gas cylinder fixing effect is prevented from being affected, and practicability is higher; the gas cylinder can be supported through the rubber cushion block, and the situation that a gap is reserved between the rubber cushion block and the main body support, and the fixing effect on the gas cylinder is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cylinder installation, in particular to a gas cylinder back frame. Background Art

[0002] Gas cylinders refer to a type of movable pressure vessel with a bottle-shaped main structure, generally filled with gas (which can be compressed gas, liquefied gas, dissolved adsorbed gas, etc.). Gas cylinders can be widely used in firefighting, chemical industry, food and other fields; for example, gas cylinders that store liquid carbon dioxide and gas cylinders that provide oxygen to people; equipment used by workers to breathe oxygen, such as respirators, is equipment for people to breathe oxygen, and is also an application of gas cylinders; respirators use compressed gas cylinders as gas sources, but the gas contained in the cylinders is compressed air; and when gas cylinders are used in firefighting and other fields, in order to facilitate carrying, auxiliary structures will be used to assist people in carrying gas cylinders; taking respirators as an example, most existing respirators generally include back frames, gas cylinders, sealing masks and other components, and the gas cylinders are installed on the back frames for operators to carry on their backs, so as to facilitate carrying of the gas cylinders, and a ventilation device is provided on the back frame, and the gas cylinders are connected to the ventilation device through pipe fittings to achieve connection.

[0003] At present, the backpack used for gas cylinders is usually composed of a plurality of webbings connected with buckles and a main frame cooperating with a shell structure for supporting the gas cylinder. The structure for supporting the gas cylinder is usually of fixed diameter and is usually only suitable for gas cylinders of a single size. It has limitations in use and a small scope of application. It is inconvenient to adjust according to the size of the gas cylinder, making it inconvenient to use and relatively poor in practicality. Utility Model Content

[0004] The purpose of the utility model is to provide a gas cylinder back rack to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a gas cylinder backpack, comprising a main body bracket, a waist belt connecting piece is symmetrically arranged on the outer wall of the lower part of the main body bracket, the waist belt connecting piece is connected to a waist belt at one end relatively outside, and the two waist belts are respectively connected to a male buckle and a female buckle at one end relatively outside, a shoulder strap 1 is symmetrically arranged on the upper end of the main body bracket, and shoulder strap 2 is connected to one end of the two waist belt connecting pieces at symmetrical positions on one side, and the male buckle and the female buckle are respectively connected at one end of the shoulder strap 1 and the shoulder strap 2, the lower end of the front side of the main body bracket is connected to a mounting seat, a fixing mechanism is arranged in the mounting seat, the fixing belts are respectively connected to the front side of the main body bracket at symmetrical positions between the shoulder strap 1 and the waist belt connecting piece, and the male buckle and the female buckle are respectively connected at one end of the two fixing belts, the fixing mechanism comprises a bidirectional screw 1, a chamber is opened inside the bottom end of the mounting seat, and the bidirectional screw 1 is rotatably installed in the chamber.

[0006] Furthermore, the fixing mechanism also includes a worm, and the worm sleeve is installed on the outside of the bidirectional screw one, one end of the bidirectional screw one is connected to a handle outside the mounting seat, and a bidirectional screw two is rotatably installed above the worm in the chamber, and the outer wall of the bidirectional screw two is sleeved with a turbine engaged with the worm, and the outer walls of the worm and the bidirectional screw two are symmetrically sleeved with connecting blocks, and the upper end of the connecting block is connected with a clamping plate at the bottom of the mounting seat, and the bottom of the mounting seat is symmetrically provided with sliding grooves adapted to the connecting block, and a limiting component is provided behind the bidirectional screw one in the chamber, and the limiting component is located on the side of the sliding groove close to the turbine. Through the fixing mechanism, the distance between the relative clamping plates can be adjusted as needed, so that it can be adapted to clamp and fix gas cylinders of different sizes, with a wider range of applications and more convenient use.

[0007] Furthermore, the limit assembly includes a bracket, which is symmetrically arranged on one side of the bottom of the chamber, and the bracket is located behind the two-way screw rod, and a rotating shaft is rotatably installed between the two brackets, and a block is sleeved on the outer side of the rotating shaft, and a gear 1 meshing with the block is sleeved on the outer wall of the two-way screw rod, and a torsion spring is symmetrically sleeved on the outer side of the rotating shaft, and the torsion spring is located on both sides of the block, and two ends of the torsion spring are respectively fixedly connected to the rotating shaft and the bracket, and a gear 2 is sleeved on the outer wall of one end of the rotating shaft on the outer sleeve of the bracket, and a driving rod is sleeved on the outer side of the two-way screw rod, and a track groove matching with the two-way screw rod is opened on one side of the driving rod, and a plurality of tooth grooves meshing with the two gears are opened on the upper and lower walls of the driving rod, and a handle is connected to the outside of the mounting seat at one end of the driving rod, and the two-way screw rod can be restricted and fixed by the limit assembly to prevent it from being accidentally touched and causing its rotation, thereby affecting its fixing effect on the gas cylinder.

[0008] Furthermore, a rubber pad is fixedly installed on one side of the main support, and the rubber pad corresponds to the fixing belt. The rubber pad is a hollow structure so as to support the gas cylinder and avoid non-contact between it and the main support, leaving a gap, thereby affecting its fixation on the gas cylinder.

[0009] Furthermore, the splint is arc-shaped, and the bidirectional screw 1 and the bidirectional screw 2 are respectively threadedly connected to the connecting block, and the bidirectional screw 1 and the bidirectional screw 2 are rotatably connected to the mounting seat through bearings. A limiting sleeve is fixedly installed on the side wall of the shoulder strap 1 on the upper side to adapt to the fixed use of the gas cylinder, and the four connecting blocks can be synchronously driven to move synchronously toward or away from the turbine.

[0010] Furthermore, the clamping block is arc-shaped, and the upper and lower clamping blocks are symmetrically distributed up and down. The driving rod is located between the two gears 2, and the rotating shaft is rotatably connected to the bracket through a bearing so that the two clamping blocks can be synchronously fixed to the upper and lower sides of gear 1. The setting of the driving rod can synchronously drive the two gears 2 to rotate.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0012] 1. The utility model can adjust the position of the clamping plate according to the size of the gas cylinder through the fixing mechanism and the limiting assembly, so as to adapt to the fixed use of gas cylinders of different sizes, making it more applicable, and can limit and fix the bidirectional screw after adjustment to avoid accidental contact with the bidirectional screw when it rotates, thereby affecting the position of the adjusted clamping plate and the fixing effect of the gas cylinder, and is more practical;

[0013] 2. The utility model can support the gas cylinder by means of the rubber pad, so as to avoid a gap between the rubber pad and the main support to affect the fixing effect of the gas cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the waist mounting seat of the utility model;

[0017] Figure 3 This utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0018] Figure 4 It is a schematic diagram of the structure between the gear 1 and the clamping block of the utility model from a side view;

[0019] Figure 5 It is a schematic diagram of the structure between the rotating shaft, the clamping block, the second gear and the driving rod of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the rubber pad of the utility model;

[0021] In the figure: 1. main bracket; 2. waist belt connector; 3. waist belt; 4. shoulder strap one; 5. shoulder strap two; 6. limit sleeve; 7. fixing belt; 8. mounting seat; 9. splint; 10. two-way screw one; 11. worm; 12. two-way screw two; 13. turbine; 14. connecting block; 15. bracket; 16. rotating shaft; 17. clamping block; 18. gear one; 19. torsion spring; 20. gear two; 21. driving rod; 22. rubber pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 - Figure 6A gas cylinder backpack shown in the figure comprises a main frame 1, a waist belt connector 2 is symmetrically provided on the outer wall of the lower part of the main frame 1, a waist belt 3 is connected to the relatively outer end of the waist belt connector 2, and a male buckle and a female buckle are respectively connected to the relatively outer ends of the two waist belts 3, a shoulder belt 1 4 is symmetrically provided on the upper end of the main frame 1, shoulder belt 2 5 is symmetrically connected to one side of the two waist belt connectors 2, and one end of the shoulder belt 1 4 and the shoulder belt 2 5 is respectively connected to the male buckle and the female buckle, the lower end of the front side of the main frame 1 is connected to the mounting seat 8, and a fixing mechanism is provided in the mounting seat 8, fixing belts 7 are respectively connected to the front side of the main frame 1 at symmetrical positions between the shoulder belt 1 4 and the waist belt connector 2, and one end of the two fixing belts 7 is respectively connected to the male buckle and the female buckle, the fixing mechanism comprises a bidirectional screw 10, a chamber is opened inside the bottom end of the mounting seat 8, and the bidirectional screw 10 is rotatably installed in the chamber. In this example, the fixing mechanism also includes a worm 11, and the worm 11 is sleeved and installed on the outside of the bidirectional screw 10. One end of the bidirectional screw 10 is connected to a handle outside the mounting seat 8. A bidirectional screw 12 is rotatably installed above the worm 11 in the chamber. The outer wall of the bidirectional screw 12 is sleeved with a turbine 13 meshing with the worm 11. The outer walls of the worm 11 and the bidirectional screw 12 are symmetrically sleeved with connecting blocks 14. The upper end of the connecting block 14 is connected to a clamping plate 9 at the bottom of the mounting seat 8. The bottom of the mounting seat 8 is symmetrically provided with sliding grooves adapted to the connecting block 14. A limiting component is provided behind the bidirectional screw 10 in the chamber, and the limiting component is located on the side of the sliding groove close to the turbine 13. Through the fixing mechanism, the distance between the relative clamping plates 9 can be adjusted as needed, so that it can be adapted to clamp and fix gas cylinders of different sizes, with a wider range of applications and more convenient use. In this example, the limit assembly includes a bracket 15, which is symmetrically arranged on one side of the bottom of the chamber, and the bracket 15 is located behind the bidirectional screw 10. A rotating shaft 16 is rotatably installed between the two brackets 15. A clamping block 17 is sleeved on the outer side of the rotating shaft 16. A gear 18 meshing with the clamping block 17 is sleeved on the outer wall of the bidirectional screw 10. A torsion spring 19 is symmetrically sleeved on the outer side of the rotating shaft 16, and the torsion spring 19 is located on both sides of the clamping block 17. The two ends of the torsion spring 19 are fixedly connected to the rotating shaft 16 and the bracket 15 respectively. Then, the outer wall of one end of the rotating shaft 16 is provided with a gear 20 on the outer sleeve of the bracket 15, and a driving rod 21 is provided on the outer side of the bidirectional screw 10. A track groove adapted to the bidirectional screw 10 is provided on one side of the driving rod 21. The upper and lower walls of the driving rod 21 are provided with a plurality of tooth grooves meshing with the gear 20. A handle is connected to the outside of the mounting seat 8 at one end of the driving rod 21. The bidirectional screw 10 can be restricted and fixed by the limit assembly to avoid accidental contact causing it to rotate and affect its fixing effect on the gas cylinder. In this example, a rubber pad 22 is fixedly installed on one side of the main bracket 1, and the rubber pad 22 corresponds to the fixing belt 7. The rubber pad 22 is a hollow structure so as to support the gas cylinder and avoid non-contact between it and the main bracket 1, leaving a gap, thereby affecting its fixing of the gas cylinder.

[0024] In this example, the clamping plate 9 is in an arc shape, and the bidirectional screw rod 10 and the bidirectional screw rod 2 12 are respectively threadedly connected to the connecting block 14, and the bidirectional screw rod 10 and the bidirectional screw rod 2 12 are both rotatably connected to the mounting seat 8 through bearings. A limit sleeve 6 is fixedly installed on one side wall of the upper shoulder strap 1 4 so as to be adapted for fixed use with the gas cylinder, and the four connecting blocks 14 can be synchronously driven to move synchronously toward or away from the turbine 13. In this example, the block 17 is in an arc shape, and the upper and lower blocks 17 are symmetrically arranged, the driving rod 21 is located between the two gears 20, and the rotating shaft 16 is rotatably connected to the bracket 15 through a bearing so that the two blocks 17 are synchronously fixed to the upper and lower sides of the gear 1 18, and the setting of the driving rod 21 can synchronously drive the two gears 20 to rotate.

[0025] The working principle of the utility model is as follows: when in use, the position of the clamping plate 9 can be adjusted according to the size of the gas cylinder to be installed, and the gas cylinder can be installed between the clamping plates 9 in the mounting seat 8, and then the handle can be pulled to drive the driving rod 21 to move, so that the tooth groove on the driving rod 21 drives the meshing gear 20 to drive the rotating shaft 16 to rotate, so that the two rotating shafts 16 can drive the connected clamping block 17 to rotate in a relatively outward direction, so that the clamping block 17 is separated from the gear 18, and at the same time, the rotating shaft 16 can twist the connected torsion spring 19, and then twist the handle to drive the bidirectional screw 10 to rotate, so that the bidirectional screw 10 drives the worm 11 and then drives the turbine 13 to drive the bidirectional screw 2 12 to rotate, so that the bidirectional screw 2 12 and the bidirectional screw 2 12 synchronously drive the connecting block 14 connected thereto to move close to the position of the turbine 13, so that the connecting block 14 can drive the connected The clamping plate 9 is moved to clamp and fix the lower end of the gas cylinder, and then the force applied to the handle and the pull handle is released, so that the rotating shaft 16 is reset and rotated under the torsion of the torsion spring 19, and the rotating shaft 16 will drive the block 17 and the gear 2 20 to reset and rotate, so that the block 17 is meshed with the gear 1 18, and at the same time, the gear 20 will drive the connected driving rod 21 to move into the chamber for reset, thereby realizing the restriction and fixation of the two-way screw 10, avoiding accidental touching of the two-way screw 10 and rotating, thereby affecting the fixing effect of the gas cylinder, and the upper outer wall of the gas cylinder will fit with the rubber pad 22, and then it can be connected and fixed to the main frame 1 by the buckle connected with the fixing belt 7, and then the waist belt 3, shoulder strap 1 4 and shoulder strap 2 5 as well as the connected male and female buckles can be used to realize the connection between the device and the waist and shoulders of the human body, which is convenient to use and more practical.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gas cylinder back rack, comprising a main frame (1), characterized in that: The lower outer wall of the main frame (1) is symmetrically provided with a belt connector (2), and the relatively outer ends of the belt connector (2) are connected to a belt (3), and the relatively outer ends of the two belts (3) are respectively connected to a male buckle and a female buckle. The upper end of the main frame (1) is symmetrically provided with a shoulder belt (4), and the two belt connectors (2) are symmetrically connected to shoulder belts (5) at one side, and one end of the shoulder belt (4) and the shoulder belt (5) is respectively connected to a male buckle and a female buckle. The lower front end of the main frame (1) is connected to a mounting seat (8), and a fixing mechanism is arranged inside the mounting seat (8). The front of the main frame (1) is connected to fixing belts (7) at symmetrical positions between the shoulder belt (4) and the belt connector (2), and one end of the two fixing belts (7) is respectively connected to a male buckle and a female buckle. The fixing mechanism includes a bidirectional screw (10), and a chamber is opened inside the bottom end of the mounting seat (8), and the bidirectional screw (10) is rotatably installed in the chamber.

2. A gas cylinder backpack according to claim 1, characterized in that: The fixing mechanism also includes a worm (11), and the worm (11) is sleeved and installed on the outside of the bidirectional screw (10), one end of the bidirectional screw (10) is connected to a handle outside the mounting seat (8), a bidirectional screw (12) is rotatably installed above the worm (11) in the chamber, the outer wall of the bidirectional screw (12) is sleeved with a turbine (13) meshing with the worm (11), the outer walls of the worm (11) and the bidirectional screw (12) are symmetrically sleeved with a connecting block (14), the upper end of the connecting block (14) is connected to a clamping plate (9) at the bottom of the mounting seat (8), the bottom of the mounting seat (8) is symmetrically opened with a slide groove adapted to the connecting block (14), and a limit assembly is provided in the chamber behind the bidirectional screw (10), and the limit assembly is located on the side of the slide groove close to the turbine (13).

3. A gas cylinder backpack according to claim 2, characterized in that: The limit assembly comprises a bracket (15), the bracket (15) is symmetrically arranged on one side of the bottom of the chamber, and the bracket (15) is located behind the bidirectional screw rod (10), a rotating shaft (16) is rotatably installed between the two brackets (15) up and down, a clamping block (17) is sleeved on the outer side of the rotating shaft (16), the outer wall of the bidirectional screw rod (10) is sleeved on a gear (18) meshing with the clamping block (17), and a torsion spring (19) is symmetrically sleeved on the outer side of the rotating shaft (16), and the torsion spring (19) is located on both sides of the clamping block (17). On the side, the two ends of the torsion spring (19) are fixedly connected to the rotating shaft (16) and the bracket (15) respectively; the outer wall of one end of the rotating shaft (16) is provided with a gear 2 (20) on the outer sleeve of the bracket (15); the outer side of the bidirectional screw rod (10) is provided with a driving rod (21); one side of the driving rod (21) is provided with a track groove adapted to the bidirectional screw rod (10); the upper and lower walls of the driving rod (21) are provided with a plurality of tooth grooves meshing with the gear 2 (20); one end of the driving rod (21) is connected with a handle outside the mounting seat (8).

4. A gas cylinder backpack according to claim 2, characterized in that: A rubber pad (22) is fixedly mounted on one side of the main frame (1), and the rubber pad (22) corresponds to the fixing belt (7), and the rubber pad (22) is a hollow structure.

5. A gas cylinder backpack according to claim 3, characterized in that: The clamping plate (9) is arc-shaped, and the bidirectional screw rod 1 (10) and the bidirectional screw rod 2 (12) are respectively threadedly connected to the connecting block (14), and the bidirectional screw rod 1 (10) and the bidirectional screw rod 2 (12) are both rotatably connected to the mounting seat (8) through bearings, and a limiting sleeve (6) is fixedly installed on a side wall of the shoulder strap 1 (4) on the upper side.

6. A gas cylinder backpack according to claim 3, characterized in that: The clamping block (17) is arc-shaped, and the two clamping blocks (17) at the upper and lower sides are symmetrically arranged. The driving rod (21) is located between the two gears (20), and the rotating shaft (16) is rotatably connected to the bracket (15) through a bearing.

Images