A headlock for a hospital bed and its installation structure

Abstract

The present invention discloses a head lock for a hospital bed and an installation structure. One end of the switch is hinged in the switch installation groove of the lock core main body by a pin shaft; the upper ends of the locking blocks A and B are hinged on the supports A and B by a pin shaft, and the narrow and wide shims at the lower ends are located in the through holes A and B of the lock core main body; the lock tongue and the guide post are installed at both ends of the lock core main body, a return spring is sleeved on the guide post, and a positioning block is sleeved at the end; the locking protrusion is fixed on the horizontal support pipe of the headstock bottom frame; the head lock is placed inside one end of the lower horizontal support pipe at the head / foot of the bed, and the positioning block is detachably fixed on the pipe wall of the lower horizontal support pipe; the lock hole is opened on the guardrail column; when the head lock is locked, the lock tongue is located in the lock hole, and the locking protrusion abuts against the wide shim of the locking block B. For the hospital bed installed with this head lock, external dust is not easily introduced between the head / foot of the bed and the horizontal support pipe of the bed bottom frame, and it is easy to clean, thus no longer causing cross-infection among patients; the installation and disassembly of the head lock are fast, avoiding accidental touch.

Description

Technical Field

[0001] The present invention relates to a headstock lock and an installation structure for a hospital bed. Background Art

[0002] A hospital bed is a necessary tool for people's medical treatment and rehabilitation. The functions of the medical bed body are more diversified. With the continuous development of the medical level, medical beds for children have also become necessary tools for children in treatment and rehabilitation. For some existing hospital beds, especially medical beds for children, in order to prevent patients from falling out of the bed, higher guardrails are installed on both sides of the bed, which play a good protective role. The head and tail of the bed are basically tightly fixed to the horizontal support pipe of the bed bottom frame, and there is basically no gap. Dust carrying germs is not easy to enter the bed from here, and the dust on the appearance is easy to clean, reducing the way for germs to invade and cause cross-infection among patients, especially child patients. However, when an emergency occurs to a patient and needs to be handled, doctors need to quickly enter from both sides to handle it and need to remove the guardrails. Under normal circumstances, the guardrails are still relatively easy to disassemble and translate to the outside of the window. Once the guardrail lock cannot be opened, doctors cannot quickly enter for emergency treatment, delaying the treatment of the patient and bringing unacceptable consequences. Therefore, to avoid this situation, it is necessary to study a hospital bed whose head and tail can be quickly opened. People also try to use ordinary connecting locks for the connection of the head and tail of the bed. However, the ordinary connecting hinges are exposed outside the head or tail of the bed and the horizontal support pipe of the bed bottom frame, which is easy to accumulate dust, not only increasing the cleaning difficulty for people and not being easy to clean thoroughly, but also increasing the gap between the head or tail of the bed and the horizontal support pipe of the bed bottom frame, and the dust carrying germs is very easy to enter from the gap, causing cross-infection among patients. The ordinary connecting lock is an exposed lock, which is easy to be accidentally touched, resulting in the failure of fixing the head and tail of the bed and collapsing to injure people or objects. Summary of the Invention

[0003] The object of the present invention is to solve the above problems existing in the prior art, and provide a headstock lock for a hospital bed and its installation structure. For a hospital bed installed with this headstock lock, external dust is not easy to enter between the head or tail of the bed and the horizontal support pipe of the bed bottom frame, and it is easy to clean, and cross-infection of patients will no longer be caused thereby; and the head or tail of the bed can be quickly installed and disassembled, avoiding accidental touch.

[0004] To achieve the above object, the technical solution of the present invention is: a head lock for a hospital bed, comprising a lock core body, a lock tongue, a switch, a guide post, a return spring and a positioning block; a lock tongue hole is opened on one end face of the lock core body, and a switch installation groove is opened on the upper end face of the end of this end; the switch is installed in the switch installation groove, and it includes support A, support B, a locking block A close to the lock tongue hole, and a locking block B far from the lock tongue hole; three pairs of pin shaft holes are opened on support A and support B; there is a narrow retaining piece at the lower end of the locking block A, and its upper end is hinged on the middle pin shaft fixed on support A and support B, there is a wide retaining piece at the lower end of the locking block B, and its upper end is hinged on the pin shaft fixed on support A and support B and far from the lock tongue hole, support A and support B are hinged on the pin shaft fixed at one end of the lock tongue hole of the lock core body, through holes A and B are opened on the bottom surface of the switch installation groove, and the narrow retaining piece of the locking block A and the wide retaining piece of the locking block B are respectively located in through holes A and B; one end of the lock tongue is fixedly installed in the lock tongue hole; a spring limit seat is fixed on the other end face of the lock core body, a guide post installation hole is opened in the middle, the guide post is fixedly installed in the guide post installation hole, a return spring is threaded on it, and a positioning block with the return spring sleeved on its end; a manual operation groove is opened on the lock core body.

[0005] Further preferably, an operation hole is opened on the lock core body at a position corresponding to the vertical support pipe of the head or the tail of the bed. It is convenient for the installation of the vertical support pipe of the head or the tail of the bed.

[0006] Further preferably, the spring limit seat is two limit columns symmetrically distributed relative to the guide post with a top hook at the end integrated with the lock core body. It has a certain elasticity, clamps the return spring, and makes the return spring easy to disassemble.

[0007] An installation structure of a head lock for a hospital bed, comprising a locking protrusion, a lock hole, an operation hole A and an operation hole B; the locking protrusion is fixed on the horizontal support pipe of the head frame of the bed; an operation hole A is opened on the lower horizontal support pipe of the head or the tail corresponding to the locking protrusion, and an operation hole B facing the manual operation groove of the head lock is also opened on this lower horizontal support pipe; the lock hole is opened at a position corresponding to the guardrail column and the lower horizontal support pipe; the head lock is placed inside one end of the lower horizontal support pipe, the lock tongue passes through the through hole of the end plug of the lower horizontal support pipe, and the positioning block of the return spring is detachably fixed on the pipe wall of the lower horizontal support pipe; when the head lock is locked, the lock tongue is located in the lock hole, and the locking protrusion jacks up on the wide retaining piece of the switch locking block B; when the head lock is just opened and the head or the tail of the bed has not left the horizontal support pipe of the head frame of the bed, the locking block A and the locking block B droop into the operation hole A and are located on both sides of the locking protrusion, the wide retaining piece of the locking block B is blocked by one end of the locking protrusion far from the lock tongue hole, after removing the head or the tail of the bed, the narrow retaining piece of the locking block A is blocked by the hole wall of the operation hole A close to the lock tongue hole, and the wide retaining piece of the locking block B is located at the position jacked up by the locking protrusion.

[0008] Further preferably, another operation hole is formed at the lower end of the lower horizontal support pipe at the head or tail of the bed at a position corresponding to the vertical support pipe at the head or tail of the bed, which facilitates the installation of the vertical support pipe at the head or tail of the bed.

[0009] When installing the hospital bed of the present invention, the head lock is hidden inside the horizontal support pipes of the head or tail of the bed and the bottom frame of the bed. The horizontal support pipes of the head or tail of the bed and the bottom frame of the bed are closely fitted without large gaps, and external dust is not easily introduced therefrom, and cross-infection of patients is no longer caused thereby. A large amount of dust will not accumulate at the connection of the horizontal support pipes of the head or tail of the bed and the bottom frame of the bed, and it is easy to clean. Moreover, the head or tail of the bed can be quickly installed and disassembled. When an emergency occurs to a patient and needs to be treated, the doctor can quickly disassemble the head or tail of the bed and enter the hospital bed for emergency treatment. The occurrence of accidental touch is avoided, and the fixing reliability of the head or tail of the bed is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is the front view of the head lock of the present invention installed on the hospital bed in the locked state;

[0011] Figure 2 is Figure 1 the enlarged structural schematic diagram of part E in

[0012] Figure 3 is the three-dimensional structural schematic diagram of the head lock of the present invention;

[0013] Figure 4 is the three-dimensional structural schematic diagram of the switch in the head lock of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0014] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0015] Such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, this embodiment includes a lock core body 11, a lock tongue 7, a switch, a guide post 13, a return spring 12, and a positioning block 14. A lock tongue hole is formed on one end face of the lock core body 11, and a switch installation groove 17 is formed on the upper end face of the end portion of this end. The switch includes a support A 81, a support B 82, a locking block A 9 close to the lock tongue hole, and a locking block B 10 away from the lock tongue hole. Three pairs of pin shaft holes are formed on the support A 9 and the support B 10. There is a narrow retaining piece 18 at the lower end of the locking block A 9, and its upper end is hinged to an intermediate pin shaft 161 fixed on the support A 81 and the support B 82. There is a wide retaining piece at the lower end of the locking block B 10, and its upper end is hinged to a pin shaft 162 fixed on the support A 81 and the support B 82 and away from the lock tongue hole. The support A 9 and the support B 10 are hinged to a pin shaft 15 fixed at one end of the lock tongue hole of the lock core body 11. Through holes A and B are formed on the bottom surface of the switch installation groove 17. The narrow retaining piece 18 of the locking block A 9 and the wide retaining piece 19 of the locking block B 10 are respectively located in the through holes A and B. One end of the lock tongue 7 is fixedly installed in the lock tongue hole. A spring limit seat 23 is fixed on the other end face of the lock core body 11. A guide post installation hole is formed in the middle. The guide post 13 is fixedly installed in the guide post installation hole. A return spring 12 is threaded thereon, and a positioning block 14 with the return spring 12 sleeved on its end is provided. A manual operation groove 25 is formed on the lock core body 11. Preferably, an operation hole 24 is formed on the lock core body 11 at a position corresponding to the vertical support pipe 26 of the head or tail of the bed, which is convenient for the installation of the vertical support pipe of the head or tail of the bed. Preferably, the spring limit seat 23 is two limit columns integrally formed with the lock core body 11 and symmetrically distributed relative to the guide post at the end with a top hook. It has a certain elasticity, clamps the return spring, and makes the return spring easy to disassemble.

[0016] An installation structure of a headstock lock for a hospital bed, comprising a locking projection 6, a lock hole 21, an operation hole A 20 and an operation hole B. The locking projection 6 is fixed on the transverse support pipe 3 of the headstock bottom frame. An operation hole A 20 is formed in the lower transverse support pipe 4 of the headstock or the footstock 1 corresponding to the locking projection 6, and an operation hole B facing the manual operation groove 25 of the headstock lock is also formed in the lower transverse support pipe 3. The lock hole 21 is formed at a position corresponding to the guardrail column 2 and the lower transverse support pipe 28. The headstock lock is placed inside one end of the lower transverse support pipe 4, the lock tongue 7 passes through the through hole of the end plug 5 of the lower transverse support pipe 4, and the positioning block 14 of the return spring 12 is clamped and fixed in the hole 28 formed in the pipe wall of the lower transverse support pipe 4. When locking the headstock lock, the lock tongue 7 is located in the lock hole, and the locking projection 6 jacks up on the wide flap 19 of the switch locking block B 10; when unlocking the headstock lock, use the hand to pick the manual operation groove 25 to pull the lock tongue 7 away from the lock hole 21, the lock core body 11 compresses the return spring 12, and after the wide flap 19 of the locking block B leaves the locking projection 6, release the hand, the locking block A 9 and the locking block B 10 droop into the operation hole A 20 under the action of gravity, are located on both sides of the locking projection 6, and return under the action of the return spring 12 until the wide flap 19 of the locking block B is blocked by one end of the locking projection 6 away from the lock tongue hole. Remove the headstock or the footstock 1, and under the action of the return spring 12, the narrow flap 18 of the locking block A is blocked by the hole wall of the operation hole A 20 close to the lock tongue hole 21, and the wide flap 19 of the locking block B is located at the position jacked up by the locking projection 6. Preferably, another operation hole 22 is formed at a position corresponding to the vertical support pipe 26 of the headstock or the footstock 1 at the lower end of the lower transverse support pipe 4 of the headstock or the footstock 1.

[0017] Certainly, the present invention has many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make corresponding changes and deformations according to the present invention. However, these corresponding changes and deformations should all belong to the improvement of equivalent technologies and fall within the protection scope of the claims of the present invention.

Claims

1. A head lock for a hospital bed, characterized in that: It includes a lock core body, a lock tongue, a switch, a guide post, a return spring and a positioning block; one end face of the lock core body is provided with a lock tongue hole, and the upper end face of the end of this end is provided with a switch installation groove; the switch is installed in the switch installation groove, and it includes support A, support B, a locking block A close to the lock tongue hole, and a locking block B far from the lock tongue hole; three pairs of pin shaft holes are provided on support A and support B; there is a narrow retaining piece at the lower end of the locking block A, and its upper end is hinged on the middle pin shaft fixed on support A and support B. There is a wide retaining piece at the lower end of the locking block B, and its upper end is hinged on the pin shaft fixed on support A and support B and far from the lock tongue hole. Support A and support B are hinged on the pin shaft fixed at one end of the lock tongue hole of the lock core body. Through holes A and B are provided on the bottom surface of the switch installation groove. The narrow retaining piece of the locking block A and the wide retaining piece of the locking block B are respectively located in through holes A and B; one end of the lock tongue is fixedly installed in the lock tongue hole; a spring limit seat is fixed on the other end face of the lock core body, and a guide post installation hole is provided in the middle. The guide post is fixedly installed in the guide post installation hole, a return spring is sleeved on it, and a positioning block with the return spring sleeved on its end; a manual operation groove is provided on the lock core body.

2. The headstock lock for a hospital bed according to claim 1, characterized in that: The lock core body is provided with an operation hole at a position corresponding to the vertical support pipe of the head of the bed or the tail of the bed.

3. The head lock for hospital bed according to claim 1 or 2, characterized in that: The spring limit seat is two limit posts symmetrically distributed relative to the guide post with a top hook at the end integrated with the lock core body.

4. An installation structure of the headstock lock for a hospital bed according to claim 1 or 2 or 3, characterized in that: It includes a locking protrusion, a lock hole, an operation hole A and an operation hole B; the locking protrusion is fixed on the horizontal support pipe of the bottom frame of the head of the bed; an operation hole A is provided on the lower horizontal support pipe of the head of the bed or the tail of the bed corresponding to the locking protrusion, and an operation hole B facing the manual operation groove of the head of the bed lock is also provided on this lower horizontal support pipe; the lock hole is provided at a position corresponding to the guardrail column and the lower horizontal support pipe; the head of the bed lock is placed inside one end of the lower horizontal support pipe, the lock tongue passes through the through hole of the end plug of the lower horizontal support pipe, and the positioning block of the return spring is detachably fixed on the pipe wall of the lower horizontal support pipe; when the head of the bed lock is locked, the lock tongue is located in the lock hole, and the locking protrusion jacks up on the wide retaining piece of the switch locking block B; when the head of the bed lock is just opened and the head of the bed or the tail of the bed has not left the horizontal support pipe of the bottom frame of the head of the bed, the locking block A and the locking block B droop into the operation hole A and are located on both sides of the locking protrusion. The wide retaining piece of the locking block B is blocked by one end of the locking protrusion far from the lock tongue hole. After removing the head of the bed or the tail of the bed, the narrow retaining piece of the locking block A is blocked by the hole wall of the operation hole A close to the lock tongue hole, and the wide retaining piece of the locking block B is located at the position jacked up by the locking protrusion.

5. The installation structure of the headstock lock for a hospital bed according to claim 4, characterized in that: Another operation hole is provided at the lower end of the lower horizontal support pipe of the head of the bed or the tail of the bed at a position corresponding to the vertical support pipe of the head of the bed or the tail of the bed.

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