Stretcher lock catch

Abstract

The stretcher lock catch comprises an installation base, a positioning rod, a guiding piece and two lock catch pieces arranged on the left side and the right side, the installation base is fixedly installed in a stretcher bin, the positioning rod is vertically fixed to the stretcher bin and located under the installation base, the positioning rod is sleeved with the guiding piece in a sliding mode, and an elastic mechanism is arranged between the positioning rod and the guiding piece. The lower ends of the two lock catch pieces are hinged to the upper end of the guide piece through coaxial hinge shafts, each lock catch piece is provided with a hook-shaped clamping portion, the two lock catch pieces are oppositely arranged in the mode that arc openings of the clamping portions of the two lock catch pieces are opposite so that the clamping portions of the two lock catch pieces can jointly form a clamping opening, the clamping portions of the two lock catch pieces are respectively provided with a kidney-shaped long hole, and the two kidney-shaped long holes are communicated with the clamping opening. Two guiding pin shafts symmetrically distributed on the left side and the right side of the guiding piece are fixed to the installation base, each locking piece corresponds to the guiding pin shaft on the same side, and each guiding pin shaft is arranged in the kidney-shaped long hole of the clamping portion of the corresponding locking piece on the same side in a penetrating mode. The device has the advantages of being convenient to operate and use and safe to use.

Description

Technical Field

[0001] The utility model relates to the technical field of rescue auxiliary equipment, in particular to a stretcher lock. Background Art

[0002] The stretcher lock is an important component of the stretcher caddy, used to lock the stretcher and ensure its stability and safety. The current stretcher locks used in stretcher caddies have the disadvantage of requiring manual locking and unlocking during both placement and removal of the stretcher, making the entire process time-consuming and labor-intensive. Utility Model Content

[0003] The utility model aims to provide a stretcher lock which is easy to operate and safe to use.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a stretcher lock, including a mounting seat, a positioning rod, a guide piece, and two locking pieces arranged on the left and right, the mounting seat is fixedly installed on the stretcher bin, the positioning rod is vertically fixed to the stretcher bin and is located directly below the mounting seat, the guide piece is slidably sleeved on the outside of the positioning rod, an elastic mechanism is provided between the positioning rod and the guide piece, the elastic mechanism enables the guide piece to always have a tendency to move upward along the positioning rod, the lower ends of the two locking pieces are hinged to the upper ends of the guide pieces through coaxial hinge shafts, each locking piece has a hook-shaped clamping portion, the two locking pieces are arranged relative to each other with arc openings of the clamping portions so that the clamping portions of the two locking pieces together constitute a clamping opening, a waist-shaped long hole is respectively provided in the clamping portions of the two locking pieces, two guide pins symmetrically distributed on the left and right sides of the guide piece are fixed on the mounting seat, each locking piece corresponds to the guide pin on the same side, and each guide pin is passed through the waist-shaped long hole of the clamping portion of the corresponding locking piece on the same side.

[0005] Furthermore, the aforementioned stretcher lock, wherein: the structure of the elastic mechanism includes: a circle of positioning bosses fixed on the outer wall of the guide member, a spring sleeved on the outside of the positioning rod, the upper end of the spring presses upward against the positioning boss of the guide member, and the lower end of the spring presses downward against the stretcher compartment, and under the elastic force of the spring, the guide member always has a tendency to move upward along the positioning rod.

[0006] Furthermore, in the aforementioned stretcher lock, a guide hole for inserting a positioning rod is provided at the bottom of the guide member, and the guide hole of the guide member is aligned with and inserted into the positioning rod, so that the guide member is slidably mounted on the outside of the positioning rod.

[0007] Furthermore, in the aforementioned stretcher lock, guide portions extending upward to above the clamping opening are respectively provided at the left and right ends of the mounting seat, and a guide opening is formed between the two guide portions to facilitate the stretcher support rod to be smoothly and accurately introduced into the clamping opening.

[0008] Through the implementation of the above technical solution, the beneficial effects of the utility model are: (1) when the support rod of the stretcher is placed in the stretcher lock, the stretcher lock will automatically lock the stretcher support rod to lock the stretcher to the stretcher compartment, and the stretcher only needs to be lifted up, and the stretcher lock will automatically loosen the stretcher support rod, thereby facilitating the removal of the stretcher. During the entire stretcher placement and removal process, there is no need for any manual operation of the stretcher lock, and the entire stretcher placement and removal process saves time and effort, thereby improving the rescue efficiency; (2) It has high stability and safety in use, can effectively fix the stretcher, and prevent the stretcher from loosening, and has high stability and safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The utility model is a structural schematic diagram of a stretcher lock.

[0010] Figure 2 for Figure 1 Exploded diagram.

[0011] Figure 3 The utility model is a schematic diagram of a stretcher lock buckle in use when locking a stretcher.

[0012] Figure 4 This is a schematic diagram of a stretcher lock buckle according to the present invention in use when unlocking the stretcher. DETAILED DESCRIPTION

[0013] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, the stretcher lock comprises a mounting base 1, a positioning rod 2, a guide member 3, and two locking members 4 arranged on the left and right. The mounting base 1 is used to be fixedly installed on the stretcher compartment 100, and the positioning rod 2 is vertically fixed to the stretcher compartment 100 and is located directly below the mounting base 1. A guide hole 31 for inserting the positioning rod is provided at the bottom of the guide member 3, and the guide hole 31 of the guide member 3 is aligned with and inserted into the positioning rod 2, so that the guide member 3 is slidably sleeved on the outside of the positioning rod 2, and an elastic mechanism is provided between the positioning rod 2 and the guide member 3. The elastic mechanism enables the guide member 3 to always have a tendency to move upward along the positioning rod 2. In this embodiment, the structure of the elastic mechanism includes: a circle of positioning bosses 32 is fixed on the outer wall of the guide member 3, and a spring 5 is sleeved on the outside of the positioning rod 2, the upper end of the spring 5 presses upward against the positioning boss 32 of the guide member 3, and the lower end of the spring 5 presses downward against the stretcher compartment 10, under the elastic force of the spring 5 Under the action, the guide member 3 always has a tendency to move upward along the positioning rod 2; the lower ends of the two locking members 4 are hinged to the upper ends of the guide members 3 through coaxial hinge shafts 6, and each locking member 4 has a hook-shaped clamping portion 41, and the two locking members 4 are arranged relative to each other with arc openings 42 of the clamping portions so that the clamping portions 41 of the two locking members 4 together constitute a clamping opening 43, and a waist-shaped long hole 44 is respectively provided on the clamping portions 41 of the two locking members 4. Two guide pins 7 are fixed on the mounting seat 1 and are symmetrically distributed on the left and right sides of the guide member 3. Each locking member 4 corresponds to the guide pin 7 on the same side, and each guide pin 7 is inserted into the waist-shaped long hole 44 of the clamping portion 41 of the corresponding locking member on the same side; in this embodiment, guide portions 8 extending upward to the top of the clamping opening 43 are respectively provided at the left and right ends of the mounting seat 1, and a guide opening 9 is formed between the two guide portions 9 to facilitate the stretcher support rod to be smoothly and accurately introduced into the clamping opening 43;

[0014] When no external force is applied downward to the guide member 3, the guide member 3 will move upward relative to the positioning rod 2 under the upward elastic force of the spring 5. When the guide member 3 moves upward, it will simultaneously drive the two locking members 4 to move upward. During the upward movement of the two locking members, the clamping portions 41 of the two locking members 4 will automatically open to each other through the respective waist-shaped elongated holes 44 and the guidance of the corresponding guide pins 7. At this time, the clamping opening 43 formed by the clamping portions 41 of the two locking members 4 can accommodate the support rod of the stretcher;

[0015] When the support rod of the stretcher is placed into the clamping opening 43 through the guide opening 9, under the action of the gravity of the stretcher and the injured person lying on the stretcher, the support rod of the stretcher will press the guide member 3 downward, causing the guide member 3 to overcome the upward elastic force of the spring 5 and move downward along the positioning rod 2. When the guide member 3 moves downward, it will simultaneously drive the two locking members 4 to move downward. During the downward movement of the two locking members 4, the clamping portions 41 of the two locking members 4 will automatically retract with each other under the guidance of their respective waist-shaped long holes 44 and the corresponding guide pins 7, so that the clamping portions 41 of the two locking members 4 are opposite to each other and clamp the support rod of the stretcher, thereby automatically locking and fixing the stretcher on the stretcher compartment 100;

[0016] When the stretcher needs to be taken out, it is only necessary to lift the stretcher so that the stretcher support rod no longer presses the guide member 3. At this time, the guide member 3 will automatically move up relative to the positioning rod 2 under the upward elastic force of the spring 5. When the guide member 3 moves up, it will synchronously drive the two locking members 4 to move up again. During the upward movement of the two locking members 4, the clamping portions 41 of the two locking members 4 will automatically open to each other again under the guidance of their respective waist-shaped long holes 44 and the corresponding guide pin shafts 7 to release the stretcher support rod. At this time, people continue to lift the stretcher support rod upward, and the stretcher support rod can be lifted out of the clamping opening 43 to make the stretcher leave the stretcher compartment 100. When the clamping opening 43 of the stretcher lock is engaged, the two locking members 4 of the stretcher lock will automatically lock the stretcher support rods to lock and fix the stretcher on the stretcher compartment 100. During the entire stretcher placement process, no manual operation of the stretcher lock is required, and the entire stretcher placement process is time-saving and labor-saving, thereby improving the rescue efficiency. In addition, when the stretcher is taken out of the stretcher compartment 100, the two locking members 4 of the stretcher lock will automatically release the stretcher support rods when the stretcher is lifted up, so that the stretcher can be easily taken out of the stretcher compartment. During the entire stretcher removal process, no manual operation of the stretcher lock is required, and the entire stretcher removal process is time-saving and labor-saving, thereby improving the rescue efficiency.

[0017] The stretcher lock is locked to the stretcher support rod because the guide member 3 is subjected to the deadweight of the stretcher. As the gravity of the stretcher is applied downward to the guide member 3, the guide member will overcome the upward elastic force of the spring 5 and move downward along the positioning rod 2, which will synchronously drive the two locking members 4 to move downward, so that the clamping parts 41 of the two locking members 4 will automatically retract with each other under the guidance of their respective waist-shaped long holes 44 and the corresponding guide pins 7, so that the clamping parts 41 of the two locking members 4 are in the form of a circle. The left and right sides clamp the support rods of the stretcher in a relative manner, thereby automatically locking and fixing the stretcher on the stretcher compartment 100; in this way, after the stretcher is fixed to the stretcher compartment 100 by the stretcher lock buckle, the injured person is placed on the stretcher. At this time, the weight of the injured person is also applied downward to the guide member of the stretcher lock buckle, so that the stretcher lock buckle will only clamp the stretcher support rods tighter and tighter, thereby further stably fixing the stretcher on the stretcher compartment 100, preventing the stretcher from loosening, and improving the stability and safety of use.

[0018] The advantages of the present invention are: (1) when the support rod of the stretcher is placed in the stretcher lock, the stretcher lock will automatically lock the stretcher support rod to lock the stretcher on the stretcher compartment, and the stretcher only needs to be lifted up, and the stretcher lock will automatically loosen the stretcher support rod, so that the stretcher can be easily taken out. During the entire stretcher placement and removal process, there is no need for any manual operation of the stretcher lock, and the entire stretcher placement and removal process saves time and effort, thereby improving the rescue efficiency; (2) It has high stability and safety in use, can effectively fix the stretcher, and prevent the stretcher from loosening, and has high stability and safety in use.

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0020] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention shall still fall within the scope of protection required by the present invention.

Claims

1. A stretcher lock, characterized by: The guide member is slidably sleeved on the outside of the positioning rod, and an elastic mechanism is provided between the positioning rod and the guide member, and the elastic mechanism enables the guide member to always have a tendency to move upward along the positioning rod. The lower ends of the two locking members are hinged to the upper ends of the guide members through coaxial hinge shafts, and each locking member has a hook-shaped clamping portion, and the two locking members are arranged relative to each other with arc openings of the clamping portions so that the clamping portions of the two locking members jointly constitute a clamping opening, and a waist-shaped long hole is respectively provided in the clamping portions of the two locking members, and two guide pins symmetrically distributed on the left and right sides of the guide member are fixed on the mounting seat, and each locking member corresponds to the guide pin on the same side thereof, and each guide pin is passed through the waist-shaped long hole of the clamping portion of the corresponding locking member on the same side.

2. A stretcher lock according to claim 1, characterized in that: The structure of the elastic mechanism includes: a circle of positioning bosses fixed on the outer wall of the guide member, a spring sleeved on the outside of the positioning rod, the upper end of the spring presses upward against the positioning bosses of the guide member, and the lower end of the spring presses downward against the stretcher compartment. Under the elastic force of the spring, the guide member always has a tendency to move upward along the positioning rod.

3. The stretcher lock according to claim 1, characterized in that: A guide hole for inserting the positioning rod is provided at the bottom of the guide piece. The guide hole of the guide piece is aligned with and sleeved into the positioning rod, so that the guide piece is slidably sleeved on the outside of the positioning rod.

4. A stretcher lock according to claim 1, 2 or 3, characterized in that: A guide portion extending upward to the top of the clamping opening is respectively provided at the left and right ends of the mounting seat, and a guide opening is formed between the two guide portions to facilitate the stretcher support rod to be smoothly and accurately introduced into the clamping opening.

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