Bed board supporting frame

Abstract

The utility model discloses a bed board supporting frame, which relates to the field of medical equipment, and comprises a supporting seat, a plurality of bed boards and a plurality of bed boards, the lower end of the lifting rod is inserted into the inserting groove, the lifting rod is of a tubular structure, and a throttling valve is arranged at the upper end of the lifting rod; the locking screw is connected to the top of the inserting groove in a threaded mode, and when the locking screw is screwed into the supporting base, the end of the locking screw abuts against the outer surface of the lifting rod. According to the bed board supporting frame, the communicated air cavities are formed in the supporting base and the lifting rod, when the lifting rod needs to fall, the throttling valve must be opened to complete falling of the lifting rod, and therefore the falling speed can be reduced, and impact noise can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical equipment, more particularly, relate to a bed board support frame. BACKGROUND

[0002] In the prior art, the bolt is used to tighten, and the static friction force is used to realize the fixation of the telescopic support frame. The maximum support load of the telescopic support frame depends on the compression force of the bolt and the static friction coefficient of the contact surface. Therefore, when a large support force is required, the bolt torque is required to be high under the same structure. Meanwhile, when the bolt is loosened, the telescopic rod will quickly fall due to the weight, and a large impact noise will be generated. SUMMARY

[0003] The utility model discloses a bed board support frame, which has a communication air cavity in the support seat and the lifting rod. When the lifting rod needs to be lowered, the throttle valve must be opened to complete the lowering of the lifting rod, so that the lowering speed and the impact noise can be reduced.

[0004] To achieve the above object, the utility model provides a bed board support frame, which comprises:

[0005] A support seat is internally provided with a top-opened slot, and the bottom of the slot is communicated with the outside of the support seat through a one-way valve seat;

[0006] A lifting rod is inserted into the slot at the lower end, and the lifting rod is in a tubular structure. The upper end of the lifting rod is provided with a throttle valve;

[0007] A locking screw is screwed at the top of the slot. When the locking screw is screwed into the support seat, the end of the locking screw abuts against the outer surface of the lifting rod.

[0008] Optionally, the side of the lifting rod facing the locking screw is provided with an inclined surface, and the cross section of the lifting rod decreases from the upper end to the lower end.

[0009] Optionally, the lower end of the lifting rod is provided with a guide limiting block, the outer peripheral surface of the guide limiting block is fitted with the inner side of the slot wall, and the guide limiting block is provided with a gas guide hole penetrating upward and downward.

[0010] Optionally, the outer periphery of the guide limiting block is provided with an O-ring.

[0011] Optionally, the upper end of the lifting rod is provided with a noise reduction support block, the noise reduction support block is internally provided with a gas path channel, one end of the gas path channel is communicated with the pipe of the lifting rod, and the other end of the gas path channel is provided with the throttle valve.

[0012] Optionally, the top of the support base is provided with a clamping block, the outer periphery of the clamping block is in abutment with the top of the insertion slot, and the inner periphery of the clamping block is matched with the lifting rod, and when the lifting rod is completely inserted into the insertion slot, the noise reduction support block is in abutment with the clamping block.

[0013] Optionally, the clamping block is provided with a threaded hole in the horizontal direction, and the threaded hole is matched with a locking screw.

[0014] Optionally, the bottom of the support base is connected with the bed plate in a welding manner.

[0015] Optionally, the air inlet direction of the one-way valve seat is from the outside of the insertion slot to the inside of the insertion slot.

[0016] The bed plate support frame has the advantages that: the contact surface between the lifting rod and the locking screw is designed as an inclined surface, when the locking screw is screwed in along the horizontal direction, the lifting rod can be self-locked, the end of the locking screw and the inclined surface of the lifting rod form an interference locking, and the locking position of the lifting rod is ensured unchanged; in addition, the bottom of the insertion slot is provided with a one-way valve seat, when the lifting rod is pulled out, air enters the insertion slot through the one-way valve seat, and the throttle valve is closed, so that the air is stored in the inside of the support frame, when the lifting rod falls, the throttle valve is opened, and the lifting rod can only fall in the process that the internal air is discharged outward, and the falling speed is not too fast, when the lifting rod is about to fall into place, the impact noise is reduced through the contact between the noise reduction support block and the clamping block.

[0017] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the several views, and wherein the same numbers refer to the same components in the exemplary embodiments of the present application.

[0019] Fig. 1 A structure schematic view of a bed plate support frame according to one embodiment of the present application is shown.

[0020] Fig. 2 A schematic view of air flow direction of a bed plate support frame according to one embodiment of the present application is shown when the lifting rod is upwardly lifted.

[0021] Fig. 3 A schematic view of air flow direction of a bed plate support frame according to one embodiment of the present application is shown when the lifting rod is downwardly lowered.

[0022] Reference Signs List:

[0023] 1, support seat; 2, slot; 3, one-way valve seat; 4, lifting rod; 5, noise reduction support block; 6, throttle valve; 7, locking screw; 8, clamping block; 9, inclined surface; 10, guide limiting block; 11, air guide hole; 12, O-ring. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present application will be described in more detail below. Although the preferred embodiments of the present application are described below, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application is more complete and complete, and the scope of the present application is fully conveyed to those skilled in the art.

[0025] The present application provides a kind of bed plate support frame, comprising:

[0026] Support seat, inside is provided with the slot of top opening, the bottom of slot is communicated with the outside of support seat by one-way valve seat;

[0027] Lifting rod, lower end is inserted in slot, lifting rod is tubular structure, the upper end of lifting rod is provided with throttle valve;

[0028] Locking screw, is screwed in the top of slot, when locking screw is screwed into support seat, the end of locking screw and the outer surface of lifting rod are in abutment.

[0029] Optionally, the air inlet direction of one-way valve seat is from the outside of slot to the inside of slot.

[0030] Specifically, the upper part of the slot in the support seat of the bed plate support frame is used to install the lifting rod, the bottom of the slot is communicated with the outside through the one-way valve seat, the slot cannot exhaust to the outside through the one-way valve seat, in addition, the lifting rod is tubular structure, the inside of the slot is communicated through the lower end of the lifting rod, the upper end of the lifting rod is provided with a throttle valve, when the lifting rod is pulled out, the throttle valve is opened or closed, the space in the slot increases and forms negative pressure, so that the one-way valve seat can inhale, when the lifting rod is retracted, the throttle valve is opened, the space in the slot decreases and exhausts to the outside, since the bottom of the slot is one-way valve seat, it can only exhaust from the throttle valve, but the exhaust passage is narrow, so the retraction speed of the lifting rod can be effectively controlled. When the lifting rod needs to be fixed at a certain height, the locking screw can be screwed in to make the locking screw abut against the lifting rod, so as to realize the position locking of the lifting rod.

[0031] Optionally, the side of the lifting rod towards the locking screw is provided as an inclined surface, and the cross section of the lifting rod decreases from the upper end to the lower end.

[0032] Specifically, in order to improve the fixing effect of the locking screw, the abutting surface of the lifting rod and the locking screw is provided as an inclined surface, the cross section of the lifting rod is larger closer to the upper end, and the cross section of the lifting rod is smaller closer to the lower end, when the locking screw is transversely abutted with the lifting rod, since the end surface of the locking screw is a plane, the abutment of the two forms a clamping, compared with the original locking strength determined by different static friction coefficients, the self-locking of the bed plate support frame is more stable.

[0033] Optionally, the lower end of the lifting rod is provided with a guide limiting block, the outer peripheral surface of the guide limiting block is abutted with the inner side of the slot wall of the insertion slot, and the guide limiting block is provided with an air guide hole penetrating upward and downward.

[0034] Specifically, the guide limiting block is arranged at the lower end of the lifting rod, so that the insertion slot and the lower end of the lifting rod are sealingly connected, in the case that the throttle valve is not opened, the air in the lifting rod cannot flow out from the outside of the lifting rod and the insertion slot, and since the bottom of the support seat is provided with a one-way valve seat, the air cannot flow out from the bottom of the insertion slot; in addition, the guide limiting block can also limit the movement track of the lifting rod in the insertion slot.

[0035] Optionally, the outer periphery of the guide limiting block is provided with an O-ring.

[0036] Optionally, the upper end of the lifting rod is provided with a noise reduction support block, the noise reduction support block is provided with an air passage, one end of the air passage is in communication with the pipe of the lifting rod, and the other end of the air passage is provided with a throttle valve.

[0037] Optionally, the top of the support seat is provided with a clamping block, the outer periphery of the clamping block abuts against the top of the insertion slot, the inner periphery of the clamping block is matched with the lifting rod, and when the lifting rod is completely inserted into the insertion slot, the noise reduction support block abuts against the clamping block.

[0038] Specifically, the noise reduction support block on the lifting rod and the clamping block on the support seat are correspondingly arranged, the noise reduction support block contacts the clamping block during the falling process of the lifting rod, so that the falling impact noise of the lifting rod is reduced; the air passage in the noise reduction support block is in communication with the air cavity in the lifting rod, and the throttle valve is arranged at the joint of the air passage and the outside, so that the installation of the throttle valve is more convenient, and the air passage on-off control of the lifting rod is also more convenient; the clamping block can also control the relative position relationship between the insertion slot and the lifting rod, and the clamping block and the guide limiting block cooperate with each other to stabilize the movement track of the lifting rod.

[0039] Optionally, the clamping block is provided with a threaded hole in the horizontal direction, and the threaded hole is matched with the locking screw.

[0040] Specifically, the locking screw is arranged on the clamping block in a horizontal direction, when it is needed to lock the height of the lifting rod, the locking screw is screwed into contact with the lifting rod, and the end face of the locking screw is in interference locking with the inclined surface of the lifting rod, so that the requirement for the screw tightening torque is significantly reduced, the adaptability to the change of the screw locking torque is improved, and the locking screw can be electrically screwed, so that the operation convenience is improved.

[0041] Optionally, the bottom of the support seat is connected with the bed plate by welding.

[0042] Embodiment

[0043] As Figs. 1-2 shown, the utility model provides a bed plate support frame, including:

[0044] Support seat 1, inside be provided with the top open slot 2, the bottom of slot 2 is communicated with the outside of support seat by check valve seat 3;

[0045] Lifting rod 4, lower end is inserted in slot 2, and the lifting rod 4 is tubular structure, and the upper end of lifting rod 4 is provided with noise reduction support block 5, and the noise reduction support block 5 is provided with gas passage inside, and one end of gas passage is communicated with the tube of lifting rod 4, and the other end of gas passage is provided with throttle valve 6;

[0046] Locking screw 7 is arranged at the top of slot 2, and the top of support seat 1 is provided with clamping block 8, and the clamping block 8 is provided with threaded hole in horizontal direction, and the threaded hole is matched with locking screw 7, and when locking screw 7 is screwed into support seat 1, the end of locking screw 7 abuts against the outer surface of lifting rod 4.

[0047] In the embodiment, the side of lifting rod 4 towards locking screw 7 is provided as inclined surface 9, and the cross section of lifting rod 4 decreases from the upper end to the lower end.

[0048] In the embodiment, the lower end of lifting rod 4 is provided with guide limiting block 10, and the outer circumferential surface of guide limiting block 10 is attached to the inner side of slot wall 2, and guide limiting block 10 is provided with gas guide hole 11 penetrating up and down.

[0049] In the embodiment, the outer periphery of guide limiting block 10 is provided with O-shaped ring 12.

[0050] In the embodiment, the air inlet direction of check valve seat 3 is from the outside of slot to the inside of slot.

[0051] In summary, when the lifting rod 4 is lifted upward, the throttle valve 6 is switched to the open state, the lifting rod 4 is lifted upward, the slot space below the guide limiting block serves as an air chamber, the air chamber space is increased to form negative pressure, air enters the air chamber from the one-way valve seat 3 and the throttle valve 6, until the lifting rod 4 reaches the required position, the throttle valve 6 is switched to the closed state, and the locking screw 7 is screwed into the inclined surface 9 of the lifting rod 4, so that the lifting rod 4 is stably fixed; when the lifting rod 4 is lowered, the throttle valve 6 is switched to the open state, the lifting rod 4 extrudes the air chamber, and air can only be discharged from the throttle valve 6 to the outside of the slot; due to the slow air outflow speed, the lifting rod 4 can be supported by the air in the air chamber, and the descending speed of the lifting rod 4 is slowed down; after the lifting rod 4 is retracted in place, the noise reduction support block 5 is attached to the clamping block 8, and the impact noise can be reduced.

[0052] The above has described various embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A bed deck support bracket, characterized by, The utility model relates to a support seat, internally provided with a top open slot, the bottom of the slot is communicated with the outside of the support seat through a one-way valve seat, a lifting rod, the lower end of which is inserted into the slot, the lifting rod is a tubular structure, the upper end of the lifting rod is provided with a throttle valve, a locking screw, screwed in the top of the slot, when the locking screw is screwed into the support seat, the end of the locking screw abuts against the outer surface of the lifting rod. The side of the lifting rod towards the locking screw is provided with an inclined surface, and the cross section of the lifting rod decreases from the upper end to the lower end. The lower end of the lifting rod is provided with a guide limiting block, the outer peripheral surface of the guide limiting block is in close contact with the inner side of the slot wall, and the guide limiting block is provided with an up-and-down gas guide hole. The outer periphery of the guide limiting block is provided with an O-ring.

2. The bed plate support bracket of claim 1, wherein, The upper end of the lifting rod is provided with a noise reduction support block, the noise reduction support block is internally provided with a gas path channel, one end of the gas path channel is communicated with the pipe of the lifting rod, and the other end of the gas path channel is provided with the throttle valve.

3. The bed plate support bracket of claim 2, wherein, The top of the support seat is provided with a clamping block, the outer periphery of the clamping block is in close contact with the top of the slot, the inner periphery of the clamping block is matched with the lifting rod, when the lifting rod is completely inserted into the slot, the noise reduction support block is in close contact with the clamping block.

4. The bed plate support bracket of claim 3, wherein, The clamping block is provided with a threaded hole in the horizontal direction, and the threaded hole is matched with the locking screw.

5. The bed plate support bracket of claim 1, wherein, The bottom of the support seat is connected with the bed plate in a welding mode.

6. The bed plate support bracket of claim 5, wherein, The air inlet direction of the one-way valve seat is from the outside of the slot to the inside of the slot.

7. The bed plate support bracket of claim 6, wherein, ​ 8. The bed plate support bracket of claim 1, wherein, ​ 9. The bed plate support bracket of claim 1, wherein, ​

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