Foldable stretcher structure
By introducing fixing and adjusting structures into the foldable stretcher, the problem of stretcher being difficult to fix is solved, and flatness and length adjustment are achieved when unfolded, improving safety and adaptability.
Patent Information
- Application Number
- CN202520180581.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-05
AI Technical Summary
The existing foldable stretcher structure is not easy to secure during use, which makes the stretcher prone to bending and affects its safety and stability.
The system employs both a fixed and an adjustable structure. The stretcher's turning joints are secured by inserting pins into slots, and the design of hinges and telescopic springs ensures that the stretcher remains flat. The adjustable structure uses a threaded rod and a bevel gear to adjust the stretcher length to accommodate different body types.
It improves the safety and stability of stretcher use, ensures that the stretcher remains flat when unfolded, and adapts to the needs of people of different body types.
Smart Images
Figure CN223845867U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a stretcher technical field, especially a foldable stretcher structure. BACKGROUND
[0002] A stretcher is a medical device used for transporting patients or injured persons, usually composed of a set of supports, supporting rods and cloth, and plays a crucial role in medical rescue. They not only help medical staff quickly and safely transfer patients or injured persons, but also to some extent, alleviate the pain and discomfort of patients. A foldable stretcher structure is a medical device designed for quick and convenient transportation of patients or injured persons in emergency situations, aiming to provide a solution that is both sturdy and portable, so that injured persons can be quickly and effectively transported in emergency situations.
[0003] The existing foldable stretcher structure is inconvenient to fix the unfolded stretcher during use, which makes the stretcher prone to turning during use, affecting the safety of the user group, and the overall structure is not stable enough. UTILITY MODEL CONTENT
[0004] The utility model aims to provide a foldable stretcher structure to solve the defect of the existing foldable stretcher structure that is inconvenient to fix.
[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a foldable stretcher structure, comprising a first sleeve and a fixing structure;
[0006] One end of the first sleeve is provided with a second sleeve, one side of the first sleeve is provided with a third sleeve, one side of the second sleeve is provided with a fourth sleeve;
[0007] One end of the first sleeve and the second sleeve is provided with an adjusting structure, one side of the first sleeve and the second sleeve is fixed with a fixed rod, the outer side of the fixed rod is installed with a stretcher cloth;
[0008] The other end of the first sleeve and the second sleeve is fixed with a fixing structure, the fixing structure comprises a first connecting block, a second connecting block, a hinge, a first fixing shell, a second fixing shell, a spring slot, an extension spring, a bolt, a slot, a sliding slot and a sliding block, one end of the first connecting block is fixed to one end of the first sleeve and the third sleeve respectively, one end of the second sleeve and the fourth sleeve is fixed with a second connecting block respectively, the bottom end of the first connecting block and the second connecting block is installed with a hinge, one side of the first connecting block is fixed with a first fixing shell, one side of the second connecting block is fixed with a second fixing shell, the inside of the second fixing shell is provided with a spring slot, the inside of the spring slot is fixed with an extension spring, one end of the extension spring is fixed with a bolt, the inside of the first fixing shell is provided with a slot, the top end of the second fixing shell is provided with a sliding slot, the inside of the sliding slot is installed with a sliding block.
[0009] Preferably, the fixing rods are symmetrically distributed inside the stretcher cloth, and the two ends of the fixing rods are fixedly connected to one side of the first sleeve and the third sleeve and one side of the second sleeve and the fourth sleeve respectively.
[0010] Preferably, the adjusting structure comprises a first built-in slot, a threaded rod, a first sleeve rod, a limiting block, a first bevel gear, a second bevel gear, a rotating block, a connecting rod, a second built-in slot, a second sleeve rod, an elastic cloth and a handle, the first built-in slot is arranged inside the first sleeve and the second sleeve respectively, the inside of the first built-in slot is installed with a threaded rod, the outside of the threaded rod is installed with a first sleeve rod, one end of the first sleeve rod is fixed with a limiting block, the outside of one end of the threaded rod is fixed with a first bevel gear, one side of the first bevel gear is installed with a second bevel gear, one end of the second bevel gear is fixed with a rotating block, one side of the first sleeve rod is fixed with a connecting rod, the inside of the third sleeve and the fourth sleeve is respectively provided with a second built-in slot, the inside of the second built-in slot is installed with a second sleeve rod, the outside of the connecting rod is installed with an elastic cloth, and one end of the first sleeve rod and the second sleeve rod is fixed with a handle.
[0011] Preferably, one end of the threaded rod is movably connected to one end inside the first built-in slot, the threaded rod is in threaded connection with the first sleeve rod, the first bevel gear is in meshing connection with the second bevel gear, and one end of the rotating block extends to the outside of the first sleeve and the second sleeve through one side of the first built-in slot respectively.
[0012] Preferably, the two ends of the connecting rod are fixedly connected to one side of the first sleeve rod and the second sleeve rod respectively, the second sleeve rod is in sliding connection with the third sleeve and the fourth sleeve through the second built-in slot, and one end of the elastic cloth is fixedly connected to the outside of the stretcher cloth.
[0013] Preferably, the hinge is fixedly connected with the bottom end of the first connecting block and the second connecting block respectively, and the first connecting block and the second connecting block are hingedly connected through the hinge.
[0014] Preferably, the bolt and the second fixed shell are in a telescopic structure through the telescopic spring, the bolt and the first fixed shell are in a clamping structure through the slot, and the bottom end of the sliding block is fixedly connected with one side of the bolt.
[0015] The folding stretcher structure has the advantages that the folding stretcher structure adopts a fixed structure, the turning connection of the stretcher is fixed by inserting the bolt into the slot when the stretcher is unfolded, and the safety during use is improved.
[0016] The adjusting structure is provided, the second bevel gear is driven to rotate by rotating the rotating block, the first bevel gear is driven to rotate by the second bevel gear, the first sleeve rod moves in the first built-in groove by the rotation of the threaded rod, the second sleeve rod slides in the second built-in groove by the connecting rod during the movement of the first sleeve rod, and the elastic cloth is stretched, so that the length of the stretcher is adjusted, and the stretcher is suitable for people of different body types.
[0017] The fixing structure is provided, the hinge is arranged on one side of the first connecting block and the second connecting block, the first connecting block and the second connecting block are hingedly connected through the hinge, the sliding block is slid in the sliding groove to drive the bolt to move and insert the bolt into the slot to form a clamping structure with the first fixed shell when the stretcher is unfolded, the bolt is stably inserted in the slot and cannot move under the elastic force of the telescopic spring, the first connecting block and the second connecting block are fixed to each other, the stretcher is in a flat state, and rotation is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;
[0019] Figure 2 It is a side view sectional structure schematic view of the utility model;
[0020] Figure 3 It is a sectional structure schematic view of the utility model; Figure 2 It is an enlarged structure schematic view of A in the utility model;
[0021] Figure 4 It is a top view sectional structure schematic view of the utility model;
[0022] Figure 5 It is a sectional structure schematic view of the utility model; Figure 4The enlarged structure schematic view at the middle B.
[0023] The reference signs in the drawings are explained as follows: 1, first sleeve; 2, second sleeve; 3, third sleeve; 4, fourth sleeve; 5, adjusting structure; 501, first built-in groove; 502, threaded rod; 503, first sleeve rod; 504, limiting block; 505, first bevel gear; 506, second bevel gear; 507, rotating block; 508, connecting rod; 509, second built-in groove; 510, second sleeve rod; 511, elastic cloth; 512, handle; 6, fixing rod; 7, stretcher cloth; 8, fixing structure; 801, first connecting block; 802, second connecting block; 803, hinge; 804, first fixed shell; 805, second fixed shell; 806, spring groove; 807, telescopic spring; 808, bolt; 809, slot; 810, sliding groove; 811, sliding block. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0025] Please refer to Figures 1-5 The foldable stretcher structure provided by the present application comprises a first sleeve 1 and a fixing structure 8.
[0026] Refer to Figures 1-5As shown, one end of the first sleeve 1 is provided with the second sleeve 2, one side of the first sleeve 1 is provided with the third sleeve 3, one side of the second sleeve 2 is provided with the fourth sleeve 4, one side of the first sleeve 1 and the second sleeve 2 is fixedly provided with the fixing rod 6, the outer side of the fixing rod 6 is provided with the stretcher cloth 7, the fixing rod 6 is provided with two groups, the fixing rod 6 is symmetrically distributed inside the stretcher cloth 7, both ends of the fixing rod 6 are fixedly connected to one side of the first sleeve 1 and the third sleeve 3 and one side of the second sleeve 2 and the fourth sleeve 4 respectively, one end of the first sleeve 1 and the second sleeve 2 is provided with the adjusting structure 5, the adjusting structure 5 comprises a first built-in groove 501, a threaded rod 502, a first sleeve rod 503, a limiting block 504, a first bevel gear 505, a second bevel gear 506, a rotating block 507, a connecting rod 508, a second built-in groove 509, a second sleeve rod 510, an elastic cloth 511 and a handle 512, the first built-in groove 501 is arranged inside the first sleeve 1 and the second sleeve 2 respectively, the first built-in groove 501 is internally provided with the threaded rod 502, the outer side of the threaded rod 502 is provided with the first sleeve rod 503, one end of the first sleeve rod 503 is fixedly provided with the limiting block 504, the outer side of one end of the threaded rod 502 is fixedly provided with the first bevel gear 505, one side of the first bevel gear 505 is provided with the second bevel gear 506, one end of the second bevel gear 506 is fixedly provided with the rotating block 507, one side of the first sleeve rod 503 is fixedly provided with the connecting rod 508, the inner part of the third sleeve 3 and the fourth sleeve 4 is respectively provided with the second built-in groove 509, the second built-in groove 509 is internally provided with the second sleeve rod 510, the outer side of the connecting rod 508 is provided with the elastic cloth 511, one end of the first sleeve rod 503 and the second sleeve rod 510 is fixedly provided with the handle 512, one end of the threaded rod 502 is movably connected to one end inside the first built-in groove 501, the threaded rod 502 is threadedly connected to the first sleeve rod 503, the first bevel gear 505 is meshingly connected to the second bevel gear 506, one end of the rotating block 507 extends to the outer side of the first sleeve 1 and the second sleeve 2 through one side of the first built-in groove 501 respectively, both ends of the connecting rod 508 are fixedly connected to one side of the first sleeve rod 503 and the second sleeve rod 510 respectively, the second sleeve rod 510 is slidably connected to the third sleeve 3 and the fourth sleeve 4 through the second built-in groove 509 respectively, one end of the elastic cloth 511 is fixedly connected to the outer side of the stretcher cloth 7.
[0027] By rotating the rotating block 507 to drive the second bevel gear 506 to rotate, the second bevel gear 506 drives the first bevel gear 505 to rotate the threaded rod 502, and the threaded rod 502 is rotated to move the first sleeve rod 503 inside the first built-in groove 501, the first sleeve rod 503 moves to drive the connecting rod 508 to slide the second sleeve rod 510 inside the second built-in groove 509, and the elastic cloth 511 is elongated, so as to adjust the length of the stretcher, so as to be suitable for different body types of people.
[0028] Referring to Figure 2 - and Figure 4 As shown in the figure, the other end of the first sleeve 1 and the second sleeve 2 is fixed with a fixed structure 8, the fixed structure 8 comprises a first connecting block 801, a second connecting block 802, a hinge 803, a first fixed shell 804, a second fixed shell 805, a spring slot 806, a telescopic spring 807, a bolt 808, a slot 809, a sliding slot 810 and a sliding block 811, the first connecting block 801 is fixed on the one end of the first sleeve 1 and the third sleeve 3 respectively, the second connecting block 802 is fixed on the one end of the second sleeve 2 and the fourth sleeve 4 respectively, the bottom end of the first connecting block 801 and the second connecting block 802 is installed with the hinge 803, the one side of the first connecting block 801 is fixed with the first fixed shell 804, the one side of the second connecting block 802 is fixed with the second fixed shell 805, the inside of the second fixed shell 805 is provided with the spring slot 806, the inside of the spring slot 806 is fixed with the telescopic spring 807, the one end of the telescopic spring 807 is fixed with the bolt 808, the inside of the first fixed shell 804 is provided with the slot 809, the top end of the second fixed shell 805 is provided with the sliding slot 810, the inside of the sliding slot 810 is installed with the sliding block 811, the hinge 803 is fixedly connected with the bottom end of the first connecting block 801 and the second connecting block 802 through the bolt respectively, the first connecting block 801 and the second connecting block 802 constitute hinged connection through the hinge 803, the bolt 808 and the second fixed shell 805 constitute telescopic structure through the telescopic spring 807, the bolt 808 and the first fixed shell 804 constitute clamping structure through the slot 809, the bottom end of the sliding block 811 is fixedly connected with the one side of the bolt 808.
[0029] By installing the hinge 803 on the one side of the first connecting block 801 and the second connecting block 802, and then making the first connecting block 801 and the second connecting block 802 constitute hinged connection through the hinge 803, it is convenient to fold the stretcher, when the stretcher is opened, by sliding the sliding block 811 in the inside of the sliding slot 810 to drive the bolt 808 to move, the bolt 808 is inserted into the inside of the slot 809 to constitute clamping structure with the first fixed shell 804, at the same time, under the elastic force of the telescopic spring 807, the bolt 808 is stably inserted into the inside of the slot 809 and cannot move, so as to fix the first connecting block 801 and the second connecting block 802 with each other, making the stretcher in flat plane state, and then not rotating.
[0030] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, 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 foldable stretcher structure, comprising a first sleeve (1) and a fixing structure (8); Characterized in that: One end of the first sleeve (1) is provided with a second sleeve (2), one side of the first sleeve (1) is provided with a third sleeve (3), and one side of the second sleeve (2) is provided with a fourth sleeve (4); One end of the first sleeve (1) and the second sleeve (2) is provided with an adjusting structure (5), and one side of the first sleeve (1) and the second sleeve (2) is fixedly provided with a fixing rod (6), and the outer side of the fixing rod (6) is provided with a stretcher cloth (7); The other end of the first sleeve (1) and the second sleeve (2) is fixedly provided with the fixing structure (8), and the fixing structure (8) comprises a first connecting block (801), a second connecting block (802), a hinge (803), a first fixing shell (804), a second fixing shell (805), a spring groove (806), an extension spring (807), a bolt (808), a slot (809), a sliding groove (810) and a sliding block (811), one end of the first sleeve (1) and the third sleeve (3) is fixedly provided with the first connecting block (801), one end of the second sleeve (2) and the fourth sleeve (4) is fixedly provided with the second connecting block (802), the bottom end of the first connecting block (801) and the second connecting block (802) is provided with the hinge (803), one side of the first connecting block (801) is fixedly provided with the first fixing shell (804), one side of the second connecting block (802) is fixedly provided with the second fixing shell (805), the inside of the second fixing shell (805) is provided with the spring groove (806), the inside of the spring groove (806) is fixedly provided with the extension spring (807), one end of the extension spring (807) is fixedly provided with the bolt (808), the inside of the first fixing shell (804) is provided with the slot (809), the top end of the second fixing shell (805) is provided with the sliding groove (810), and the inside of the sliding groove (810) is provided with the sliding block (811).
2. A collapsible stretcher structure according to claim 1, wherein: The fixing rod (6) is provided with two groups, the fixing rod (6) is symmetrically distributed in the inside of the stretcher cloth (7), and the two ends of the fixing rod (6) are fixedly connected to one side of the first sleeve (1) and the third sleeve (3) and one side of the second sleeve (2) and the fourth sleeve (4).
3. The collapsible stretcher structure of claim 1, wherein: The adjusting structure (5) comprises a first built-in groove (501), a threaded rod (502), a first sleeve rod (503), a limiting block (504), a first bevel gear (505), a second bevel gear (506), a rotating block (507), a connecting rod (508), a second built-in groove (509), a second sleeve rod (510), elastic cloth (511) and a handle (512), the first built-in groove (501) is arranged in the first sleeve (1) and the second sleeve (2) respectively, the threaded rod (502) is installed in the first built-in groove (501), the first sleeve rod (503) is installed on the outer side of the threaded rod (502), the limiting block (504) is fixed at one end of the first sleeve rod (503), the first bevel gear (505) is fixed on the outer side of one end of the threaded rod (502), the second bevel gear (506) is installed on one side of the first bevel gear (505), the rotating block (507) is fixed at one end of the second bevel gear (506), the connecting rod (508) is fixed on one side of the first sleeve rod (503), the third sleeve (3) and the fourth sleeve (4) are provided with the second built-in groove (509) respectively, the second sleeve rod (510) is installed in the second built-in groove (509), the elastic cloth (511) is installed on the outer side of the connecting rod (508), and the handle (512) is fixed at one end of the first sleeve rod (503) and the second sleeve rod (510).
4. A collapsible stretcher structure according to claim 3, wherein: One end of the threaded rod (502) is movably connected with one end in the first built-in groove (501), the threaded rod (502) is in threaded connection with the first sleeve rod (503), the first bevel gear (505) is in meshing connection with the second bevel gear (506), and one end of the rotating block (507) extends to the outside of the first sleeve (1) and the second sleeve (2) through one side of the first built-in groove (501) respectively.
5. The collapsible stretcher structure of claim 3, wherein: Both ends of the connecting rod (508) are fixedly connected with one side of the first sleeve rod (503) and the second sleeve rod (510) respectively, the second sleeve rod (510) is in sliding connection with the third sleeve (3) and the fourth sleeve (4) through the second built-in groove (509), and one end of the elastic cloth (511) is fixedly connected with the outside of the stretcher cloth (7).
6. The collapsible stretcher structure of claim 1, wherein: The hinge (803) is fixedly connected with the bottom ends of the first connecting block (801) and the second connecting block (802) through bolts, and the first connecting block (801) and the second connecting block (802) are in hinged connection through the hinge (803).
7. The collapsible stretcher structure of claim 1, wherein: The bolt (808) and the second fixed shell (805) constitute a telescopic structure through the telescopic spring (807), the bolt (808) and the first fixed shell (804) constitute a clamping structure through the insertion slot (809), and the bottom end of the sliding block (811) is fixedly connected with one side of the bolt (808).