Sickbed guardrail strength testing machine

Abstract

The utility model discloses a sickbed guardrail strength testing machine which comprises a bottom plate, a main frame is fixedly connected to the bottom plate, an auxiliary frame is fixedly connected to the left side of the main frame, first force application mechanisms are fixedly connected to the left side of the main frame and the left side of the auxiliary frame, the first force application mechanisms on the main frame are horizontally arranged, and the first force application mechanisms on the auxiliary frame are horizontally arranged. A first force application mechanism of the auxiliary frame is vertically arranged, the first force application mechanism comprises a first synchronous wheel cover, and a first motor and a first electric telescopic cylinder are installed on the first synchronous wheel cover. Forward force application, backward force application and reciprocating force application can be achieved by controlling an electric cylinder, strength detection in three directions can be conducted at the same time, the detection efficiency of the sickbed guardrail is improved, meanwhile, the static load capacity of the sickbed guardrail can be tested, during detection, fixed-point clamping can be rapidly conducted through a sample baffle and a sample clamp, and the detection efficiency is improved. And the condition that the sickbed moves during the test is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of strength detection of hospital bed guardrails, in particular to a hospital bed guardrail strength testing machine. Background Art

[0002] Generally, various common hospital beds are usually provided with guardrails on both sides of the hospital bed, and the guardrails are pivotally connected to the bed, and the main purpose is to provide a protective function to prevent the patient from falling off the bed.

[0003] During the production of hospital beds, according to the national implementation standards, the strength of hospital bed guardrails needs to be tested. The existing hospital bed guardrail strength testing devices are usually separately set, so that during the testing process, the position of the testing device needs to be constantly adjusted, resulting in low efficiency. In addition, during the testing process, a separate limit device needs to be used to fix the position of the hospital bed, which is more troublesome. Therefore, it is necessary to design a hospital bed guardrail strength testing machine to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a bed guardrail strength testing machine is proposed. It can realize forward force, backward force and reciprocating force by controlling the electric cylinder, and can perform strength detection in three directions at the same time, thereby improving the detection efficiency of the bed guardrail. At the same time, the static load capacity of the bed guardrail can also be tested. During the detection, the sample baffle and the sample clamp can be used to quickly clamp the sample at a fixed point to avoid the movement of the bed during the test.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bed guardrail strength testing machine comprises a bottom plate, characterized in that: a main frame is fixedly connected to the bottom plate, a sub-frame is fixedly connected to the left side of the main frame, a first force-applying mechanism is fixedly connected to the left side of the main frame and the sub-frame, the first force-applying mechanism on the main frame is horizontally arranged, and the first force-applying mechanism on the sub-frame is vertically arranged, the first force-applying mechanism comprises a first synchronous wheel cover, a first motor and a first electric telescopic cylinder are installed on the first synchronous wheel cover, the telescopic ends of the first electric telescopic cylinder are fixedly connected to a connecting sleeve, two sleeves are fixedly connected to the connecting sleeve, and a first guide rod is slidably connected in the two sleeves, one side of the two first guide rods passes through the connecting sleeve and is fixedly connected to a first gasket, and the two first guide rods are fixedly connected to a pressure plate bolt on one side away from the first gasket, a pressure plate body is installed on the side of the pressure plate bolt away from the first guide rod, a clamping plate is installed on the side of the pressure plate body away from the pressure plate bolt, a guide seat is fixedly connected to the side of the connecting sleeve away from the first electric telescopic cylinder, and a first mold spring is installed on the side of the guide seat away from the connecting sleeve.

[0007] Preferably, the upper end of the base plate is fixedly connected to the front and rear frames, and a second force-applying mechanism is installed on the rear side of the front and rear frames, the second force-applying mechanism includes a second synchronous wheel cover arranged on the rear side of the front and rear frames, a second motor and a second electric telescopic cylinder are installed on the left side of the second synchronous wheel cover, the telescopic end of the second electric telescopic cylinder is fixedly connected to a connecting plate, a plurality of second guide rods are fixedly connected to the left side of the connecting plate, a second gasket is fixedly connected to the left side of the plurality of second guide rods, a moving plate is provided on the left side of the connecting plate, a plurality of second guide rods penetrate the moving plate, the moving plate is slidably connected to the plurality of second guide rods, the two second guide rods located on the rear side penetrate the connecting plate and are fixedly connected to a second clamping plate together, a second mold spring is provided between adjacent surfaces of the connecting plate and the moving plate, and a bushing is provided on the outer wall of the second mold spring.

[0008] Preferably, the second mold spring passes through the connecting plate, and pressure sensors are installed on the right side of the second mold spring and on the side of the first mold spring away from the guide seat.

[0009] Preferably, the front and rear frames, the main frame and the sub-frame are all provided with a lifting assembly, the lifting assembly includes two bearing seats, the adjacent sides of the two bearing seats are rotatably connected with a lifting screw rod, one end of the lifting screw rod passes through the corresponding bearing seat and is fixedly connected with a hand wheel, the lifting screw rod is threadedly connected with a connecting block, each of the connecting blocks is fixedly connected with a lifting plate, each of the lifting plates is fixedly connected with two sliders, the front and rear frames, the main frame and the sub-frame are all provided with a plurality of slide rails, each of the sliders is slidably connected with the corresponding slide rail, and each of the lifting plates is fixedly connected with the corresponding first synchronous wheel cover and second synchronous wheel cover.

[0010] Preferably, two mounting blocks are fixedly connected to the rear side of the sub-frame, and adjacent sides of the two mounting blocks are rotatably connected to a rotating shaft, a wrench is fixedly connected to the rotating shaft, and a guide sleeve is fixedly connected to the rear side of the sub-frame, a vertical rod is slidably connected in the guide sleeve, and the upper end of the vertical rod is rotatably connected to two connecting blocks, and the two connecting blocks are rotatably connected to the left and right sides of the wrench.

[0011] Preferably, a plurality of rollers and adjustment feet are fixedly connected to the lower end of the base plate, an auxiliary rack is slidably connected to the upper end of the base plate, sample connecting rods are fixedly connected to the top of the auxiliary rack and the base plate, sample baffles are fixedly connected to the rear sides of the two sample connecting rods, a sample clamp is provided on the sample baffle located on the right side, a control box is installed on the base plate, and a touch screen is provided on the control box.

[0012] Compared with the existing technology, the advantages of this device are:

[0013] 1. Compared with the prior art, the two first force-applying mechanisms and the second force-applying mechanism are arranged so that during the detection process, the guardrail can be tested for force in three directions at the same time, which greatly improves the detection efficiency of the guardrail, is simple to operate, and is easy to use;

[0014] 2. Compared with the prior art, the setting of the vertical rod, the sample baffle and the sample fixture makes it possible to quickly locate the detection position before the test, and to block the legs of the bed, thereby avoiding the movement of the bed during the force test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a bed guardrail strength testing machine proposed by the utility model;

[0016] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 for Figure 1 The rear side attempted;

[0018] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0019] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0020] In the figure: 1 bottom plate, 2 control box, 3 touch screen, 4 roller, 5 adjustment foot, 6 main frame, 7 auxiliary frame, 8 front and rear frame, 9 slide plate, 10 lifting plate, 11 first synchronous wheel cover, 12 first motor, 13 first electric telescopic cylinder, 14 connecting sleeve, 15 first guide rod, 16 sleeve, 17 first gasket, 18 first mold spring, 19 pressure plate bolt, 20 pressure plate body, 21 clamping plate, 22 change hand wheel, 23 bearing seat, 24 lifting screw rod, 25 quick clamp mounting plate, 26 mounting block, 27 connecting block, 28 wrench, 29 guide sleeve, 30 vertical rod, 31 second clamping plate, 32 connecting plate, 33 pressure sensor, 34 second mold spring, 35 moving plate, 36 second synchronous wheel cover, 37 second guide rod, 38 second motor, 39 second electric telescopic cylinder, 40 sample connecting rod, 41 sample baffle, 42 auxiliary shelf, 43 sample fixture. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 5 A bed guardrail strength testing machine includes a bottom plate 1, a main frame 6 is fixedly connected to the bottom plate 1, a sub-frame 7 is fixedly connected to the left side of the main frame 6, a first force-applying mechanism is fixedly connected to the left side of the main frame 6 and the sub-frame 7, the first force-applying mechanism on the main frame 6 is horizontally arranged, and the first force-applying mechanism on the sub-frame 7 is vertically arranged, the first force-applying mechanism includes a first synchronous wheel cover 11, a first motor 12 and a first electric telescopic cylinder 13 are installed on the first synchronous wheel cover 11, and the telescopic ends of the first electric telescopic cylinder 13 are fixedly connected to a connecting sleeve 14, and two sleeves are fixedly connected to the connecting sleeve 14 16, the first guide rods 15 are slidably connected in the two sleeves 16, one side of the two first guide rods 15 passes through the connecting sleeve 14 and is fixedly connected with the first gasket 17, the two first guide rods 15 are fixedly connected with a pressure plate bolt 19 on the side away from the first gasket 17, a pressure plate body 20 is installed on the side of the pressure plate bolt 19 away from the first guide rod 15, a clamping plate 21 is installed on the side of the pressure plate body 20 away from the pressure plate bolt 19, a guide seat is fixedly connected to the side of the connecting sleeve 14 away from the first electric telescopic cylinder 13, and a first mold spring 18 is installed on the side of the guide seat away from the connecting sleeve 14.

[0023] Among them, the upper end of the base plate 1 is fixedly connected to the front and rear frames 8, and the rear side of the front and rear frames 8 is installed with a second force-applying mechanism, which includes a second synchronous wheel cover 36 arranged on the rear side of the front and rear frames 8, and a second motor 38 and a second electric telescopic cylinder 39 are installed on the left side of the second synchronous wheel cover 36, and the telescopic end of the second electric telescopic cylinder 39 is fixedly connected to a connecting plate 32, and a plurality of second guide rods 37 are fixedly connected to the left side of the connecting plate 32, and a second gasket is fixedly connected to the left side of the plurality of second guide rods 37, and a moving plate 35 is provided on the left side of the connecting plate 32, and a plurality of second guide rods 37 passes through the moving plate 35, the moving plate 35 is slidably connected with multiple second guide rods 37, the two second guide rods 35 on the rear side pass through the connecting plate 32 and are fixedly connected with the second clamping plate 31, a second mold spring 34 is provided between the adjacent surfaces of the connecting plate 32 and the moving plate 35, the outer wall of the second mold spring 34 is provided with a bushing, the second mold spring 34 passes through the connecting plate 32, and the right side of the second mold spring 34 and the side of the first mold spring 18 away from the guide seat are both installed with a pressure sensor 33, and the pressure sensor 33 can apply a pressure of up to one hundred kilograms.

[0024] Among them, the front and rear frames 8, the main frame 6 and the sub-frame 7 are all provided with lifting components, and the lifting components include two bearing seats 23. The adjacent sides of the two bearing seats 23 are rotatably connected with a lifting screw rod 24. One end of the lifting screw rod 24 passes through the corresponding bearing seat 23 and is fixedly connected with a hand wheel 22. A connecting block is threadedly connected to the lifting screw rod 24. Each connecting block is fixedly connected with a lifting plate 10. Each lifting plate 10 is fixedly connected with two sliders 9. The front and rear frames 8, the main frame 6 and the sub-frame 7 are all provided with multiple slide rails. Each slider 9 is slidably connected to the corresponding slide rail. Each lifting plate 10 is fixedly connected to the corresponding first synchronous wheel cover 11 and second synchronous wheel cover 36.

[0025] Among them, two mounting blocks 26 are fixedly connected to the rear side of the sub-frame 7, and the adjacent sides of the two mounting blocks 26 are rotatably connected with a rotating shaft, and a wrench 28 is fixedly connected to the rotating shaft. A guide sleeve 29 is fixedly connected to the rear side of the sub-frame 7, and a vertical rod 30 is slidably connected in the guide sleeve 29. The upper end of the vertical rod 30 is rotatably connected to two connecting blocks 27, and the two connecting blocks 27 are rotatably connected to the left and right sides of the wrench 28.

[0026] Among them, the lower end of the base plate 1 is fixedly connected with a plurality of rollers 4 and an adjustment foot 5, the roller 4 is a self-locking universal wheel, the upper end of the base plate 1 is slidably connected with an auxiliary rack 42, the auxiliary rack 42 and the top of the base plate 1 are fixedly connected with sample connecting rods 40, the rear sides of the two sample connecting rods 40 are fixedly connected with sample baffles 41, and the sample baffle 41 located on the right side is provided with a sample clamp 43, a control box 2 is installed on the base plate 1, and a touch screen 3 is provided on the control box 2, a processor is provided in the control box 2, and PLC programming is provided in the processor, and the touch screen 3 is provided with a cyclic test, forward pressure, start pressure, stop pressure, reset button and zeroing button, and the settings on the touch screen 3 can control the testing machine.

[0027] The functional principle of the utility model can be explained through the following operation mode: after the device is powered on, the base plate 1 is controlled to move to a position parallel to the bed, and then the base plate 1 is pushed in the direction of the bed, and the sample fixture 43 is fixed on the corresponding sample baffle 41, at this time, the bed legs can be limited, and then the wrench 29 is turned to move the vertical rod 30 downward, so as to perform the fixed point, and after the device is powered on, the position of the sample connecting rod 40 on the auxiliary shelf is positioned as the starting point;

[0028] Select the test mode on the touch screen 3, including the force direction and the action mode, and then set the test pressure or test time on the touch screen 3, press the start button, and the test machine automatically starts the test. When the test is performed, the first motor 12 or the second motor 38 can be controlled to operate, so that the corresponding first electric telescopic cylinder 13 or the second electric telescopic cylinder 39 can operate, thereby causing the clamping plate 21 or the connecting plate 27 to move toward the direction of the guardrail to squeeze the guardrail, and the pressure on the guardrail can be controlled by the pressure sensor 33, so as to apply pressure to the guardrail in the up and down, left and right, or front and back directions, thereby detecting the strength of the guardrail;

[0029] When the test number or time is reached, the test stops automatically. During the test, you can directly press the stop button to stop the test. After the test, you need to press [Reset Time] to reset the test time. At this time, the interface removes the sample fixture 43 and controls the movement of the base plate 1 to transfer the test machine.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bed guardrail strength testing machine, comprising a bottom plate (1), characterized in that: The base plate (1) is fixedly connected to a main frame (6), the left side of the main frame (6) is fixedly connected to a sub-frame (7), the left sides of the main frame (6) and the sub-frame (7) are both fixedly connected to a first force-applying mechanism, the first force-applying mechanism on the main frame (6) is horizontally arranged, and the first force-applying mechanism on the sub-frame (7) is vertically arranged, the first force-applying mechanism comprises a first synchronous wheel cover (11), the first synchronous wheel cover (11) is mounted with a first motor (12) and a first electric telescopic cylinder (13), the telescopic ends of the first electric telescopic cylinder (13) are fixedly connected to a connecting sleeve (14), the connecting sleeve (14) is fixedly connected to two sleeves (16), the two sleeves ( 16) are both slidably connected with a first guide rod (15), one side of the two first guide rods (15) passes through the connecting sleeve (14) and is fixedly connected with a first gasket (17), the two first guide rods (15) are fixedly connected with a pressure plate bolt (19) on the side away from the first gasket (17), a pressure plate body (20) is installed on the side of the pressure plate bolt (19) away from the first guide rod (15), a clamping plate (21) is installed on the side of the pressure plate body (20) away from the pressure plate bolt (19), a guide seat is fixedly connected to the side of the connecting sleeve (14) away from the first electric telescopic cylinder (13), and a first mold spring (18) is installed on the side of the guide seat away from the connecting sleeve (14).

2. A bed guardrail strength testing machine according to claim 1, characterized in that: The upper end of the base plate (1) is fixedly connected to the front and rear frames (8), and a second force-applying mechanism is installed on the rear side of the front and rear frames (8). The second force-applying mechanism includes a second synchronous wheel cover (36) arranged on the rear side of the front and rear frames (8). A second motor (38) and a second electric telescopic cylinder (39) are installed on the left side of the second synchronous wheel cover (36). The telescopic end of the second electric telescopic cylinder (39) is fixedly connected to a connecting plate (32). A plurality of second guide rods (37) are fixedly connected to the left side of the connecting plate (32). A second gasket is fixedly connected to the left side of the connecting plate (37), a moving plate (35) is provided on the left side of the connecting plate (32), a plurality of second guide rods (37) penetrate the moving plate (35), the moving plate (35) is slidably connected to the plurality of second guide rods (37), two second guide rods (37) located on the rear side penetrate the connecting plate (32) and are fixedly connected to the second clamping plate (31), a second mold spring (34) is provided between adjacent surfaces of the connecting plate (32) and the moving plate (35), and a bushing is provided on the outer wall of the second mold spring (34).

3. A bed guardrail strength testing machine according to claim 2, characterized in that: The second mold spring (34) passes through the connecting plate (32), and pressure sensors (33) are installed on the right side of the second mold spring (34) and on the side of the first mold spring (18) away from the guide seat.

4. A bed guardrail strength testing machine according to claim 2, characterized in that: The front and rear frames (8), the main frame (6) and the auxiliary frame (7) are all provided with lifting components, and the lifting components include two bearing seats (23). The adjacent sides of the two bearing seats (23) are rotatably connected with a lifting screw rod (24). One end of the lifting screw rod (24) passes through the corresponding bearing seat (23) and is fixedly connected with a hand wheel (22). The lifting screw rod (24) is threadedly connected with a connecting block. Each of the connecting blocks is fixedly connected with a lifting plate (10). Each of the lifting plates (10) is fixedly connected with two sliders (9). The front and rear frames (8), the main frame (6) and the auxiliary frame (7) are all provided with a plurality of slide rails. Each of the sliders (9) is slidably connected with the corresponding slide rail. Each of the lifting plates (10) is fixedly connected with the corresponding first synchronous wheel cover (11) and the second synchronous wheel cover (36).

5. The bed guardrail strength testing machine according to claim 1, characterized in that: The rear side of the sub-frame (7) is fixedly connected to two mounting blocks (26), and the adjacent sides of the two mounting blocks (26) are rotatably connected to a rotating shaft, and a wrench (28) is fixedly connected to the rotating shaft. The rear side of the sub-frame (7) is fixedly connected to a guide sleeve (29), and a vertical rod (30) is slidably connected inside the guide sleeve (29). The upper end of the vertical rod (30) is rotatably connected to two connecting blocks (27), and the two connecting blocks (27) are rotatably connected to the left and right sides of the wrench (28).

6. A bed guardrail strength testing machine according to claim 1, characterized in that: The lower end of the base plate (1) is fixedly connected to a plurality of rollers (4) and adjustment feet (5); the upper end of the base plate (1) is slidably connected to an auxiliary rack (42); sample connecting rods (40) are fixedly connected above the auxiliary rack (42) and the base plate (1); the rear sides of the two sample connecting rods (40) are fixedly connected to sample baffles (41); a sample fixture (43) is provided on the sample baffle (41) located on the right side; a control box (2) is installed on the base plate (1); and a touch screen (3) is provided on the control box (2).

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