Pressing mechanism and cardio-pulmonary resuscitation pressing equipment with same

Abstract

The utility model relates to the technical field of medical instruments, and discloses a pressing mechanism and cardiopulmonary resuscitation pressing equipment with the same, which comprises a pressing rod arranged in a cylinder barrel in an axial reciprocating mode; the pressing head is arranged at one end, extending out of the cylinder barrel, of the pressing rod, and a sensor is arranged in the pressing head; one end of the drag chain is connected with the pressing rod, and the other end is connected with the cylinder barrel; and the signal line is arranged in the drag chain, and one end of the signal line penetrates through the pressing rod and the pressing head and is connected with the sensor. Through the arrangement of the drag chain, the signal transmission of the sensor arranged in the pressing head is more stable, and a signal line is more durable; and through the protection effect of the drag chain on the signal line, sensors with other detection functions can be additionally arranged on the pressing head, so that the sensors are more stable and durable in use, and the signal line is effectively prevented from being separated from the sensors or being broken.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field more specifically, the utility model relates to a kind of pressing mechanism and the cardiopulmonary resuscitation pressing equipment with the mechanism. BACKGROUND

[0002] The cardiopulmonary resuscitation pressing equipment is to replace manual execution chest compression with mechanical action, and the reciprocating motion is carried out by controlling the pressing mechanism, so that the pressing head of the pressing mechanism is contacted with human body to carry out chest compression operation.

[0003] In the prior art, a sensor, such as a pressure sensor, is usually placed in the pressing head for detecting the pressing force, and the sensor needs to be connected in communication with the control part of the cardiopulmonary resuscitation pressing equipment through a signal line, so as to control the up-down reciprocating motion (i.e., axial reciprocating motion) of the pressing head according to the data detected by the sensor through the control part; in operation, the pressing head reciprocates up and down, so that the sensor in the pressing head also reciprocates up and down, and in the process of motion, the signal line is easy to be bent and damaged, resulting in unstable signal transmission, or the signal line is easy to be pulled off from the sensor, resulting in failure of signal transmission.

[0004] Therefore, it is necessary to provide a pressing mechanism and a cardiopulmonary resuscitation pressing equipment with the mechanism to at least partially solve the problems existing in the prior art. SUMMARY

[0005] A series of simplified concepts are introduced in the summary part, which will be further described in detail in the specific embodiment part. The summary part of the utility model does not mean to try to limit the key features and necessary technical features of the claimed technical solution, and does not mean to try to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above problems, the utility model provides a kind of pressing mechanism, comprising:

[0007] The pressing rod is arranged in the cylinder in the form of axial reciprocating motion;

[0008] The pressing head is arranged at one end of the pressing rod extending out of the cylinder, and the pressing head is provided with a sensor;

[0009] The drag chain is connected at one end with the pressing rod and at the other end with the cylinder;

[0010] The signal line is arranged in the drag chain, and one end of the signal line is arranged through the pressing rod and the pressing head, and this end is connected with the sensor.

[0011] Preferably, the pressing rod is provided with a wire channel, the end of the pressing rod close to the sensor is provided with a wire hole A in communication with the wire channel, and the end of the pressing rod away from the sensor is provided with a wire hole B in communication with the wire channel, and the signal line passes through the pressing head, the wire hole A, the wire channel and the wire hole B in sequence.

[0012] Preferably, the side of the cylinder barrel on which the drag chain is arranged is provided with an opening, and the length of the opening in the vertical direction is greater than or equal to the moving distance of the wire hole B in the vertical direction.

[0013] Preferably, one end of the drag chain is connected with the pressing rod through a fixing piece A, and the other end of the drag chain is connected with the cylinder barrel through a fixing piece B.

[0014] Preferably, the drag chain comprises a plurality of joints A connected in sequence, and the inside of the joint A is hollow.

[0015] One end of the joint A is provided with two first hinged pieces, and the other end of the joint A is provided with two second hinged pieces, and the first hinged piece of one joint A is rotationally connected with the second hinged piece of another joint A.

[0016] Preferably, the drag chain further comprises a joint B located at the end of the drag chain and hinged with the joint A, one end of the joint B is provided with two first hinged pieces or two second hinged pieces, and the other end of the joint B is provided with two clamping pieces capable of clamping the signal line.

[0017] Preferably, the pressing head comprises:

[0018] A fixed part is arranged at the end of the pressing rod, and the fixed part is provided with a sensor.

[0019] A pressing contact part is arranged at the end of the fixed part, the pressing contact part is connected with the fixed part in the horizontal direction, and the pressing contact part is connected with the sensor in the vertical direction.

[0020] Preferably, in the vertical direction, the pressing contact part is connected with the sensor through at least two first screws.

[0021] The pressing contact part is provided with an insertion part capable of being inserted into the fixed part, and in the horizontal direction, the insertion part is connected with the fixed part through at least two second screws.

[0022] Preferably, the fixed part is connected with the pressing rod through a fourth screw, and the sensor is connected with the fixed part through a third screw.

[0023] A cardiopulmonary resuscitation pressing device comprises the pressing mechanism and further comprises a transmission mechanism, the pressing rod is connected in the cylinder barrel through the transmission mechanism, and the transmission mechanism is connected with a driving part arranged on the outside of the cylinder barrel.

[0024] Compared with the prior art, the utility model at least has following beneficial effects:

[0025] The pressing mechanism and the cardiopulmonary resuscitation pressing equipment with the mechanism have the advantages that the signal transmission of the sensor arranged in the pressing head is more stable, and the signal line is more durable, the protection effect of the drag chain on the signal line can increase the sensor of other detection functions on the pressing head, the use of the sensor is more stable and durable, and the signal line and the sensor are prevented from being separated or the signal line is prevented from being broken,

[0026] The pressing contact part is connected with the sensor and the fixing part in the vertical direction and the horizontal direction respectively, the connection in different directions of the pressing contact part can prevent the pressing contact part from falling off, if the connection of the pressing contact part in one direction is disconnected, the connection in the other direction can also ensure that the pressing contact part will not be separated from the pressing rod, and the fixing part is connected with the sensor and the pressing rod respectively, the stability of the overall installation of the pressing head is further improved, the pressing head and the pressing rod are prevented from being disconnected, and the harm caused by the direct pressing of the pressing rod on the patient is avoided.

[0027] The pressing mechanism and the cardiopulmonary resuscitation pressing equipment with the mechanism have the advantages that the signal transmission of the sensor arranged in the pressing head is more stable, and the signal line is more durable, the protection effect of the drag chain on the signal line can increase the sensor of other detection functions on the pressing head, the use of the sensor is more stable and durable, and the signal line and the sensor are prevented from being separated or the signal line is prevented from being broken, BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings,

[0029] Figure 1 It is the structure schematic view of the pressing mechanism of the utility model;

[0030] Figure 2 It is the structure schematic view of the pressing rod in the pressing mechanism of the utility model;

[0031] Figure 3 It is the structure schematic view of the drag chain when the pressing rod of the pressing mechanism of the utility model moves upward; Figure 2 It is the structure schematic view of the drag chain when the pressing rod of the pressing mechanism of the utility model moves downward;

[0032] Figure 4 It is the structure schematic view of the drag chain when the pressing rod of the pressing mechanism of the utility model moves upward;

[0033] Figure 5 It is the structure schematic view of the drag chain when the pressing rod of the pressing mechanism of the utility model moves downward;

[0034] Figure 6The external structure schematic diagram of the pressing mechanism is shown in the utility model.

[0035] Figure 7 The structure schematic diagram of the tow chain in the pressing mechanism is shown in the utility model.

[0036] Figure 8 The installation structure schematic diagram of the tow chain and the fixing part B in the pressing mechanism is shown in the utility model.

[0037] Figure 9 The structure schematic diagram of the pressing head in the pressing mechanism is shown in the utility model.

[0038] Figure 10 The exploded structure schematic diagram of the pressing head in the pressing mechanism is shown in the utility model.

[0039] Figure 11 The cross section structure schematic diagram of the pressing head in the pressing mechanism is shown in the utility model. DETAILED DESCRIPTION

[0040] The utility model will be further explained in detail in combination with the drawings and examples, so that the person skilled in the art can implement according to the description.

[0041] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0042] As Figure 1 The utility model provides a kind of pressing mechanism, comprising:

[0043] Pressing rod 1, in the form of axial reciprocating motion is arranged in cylinder 11;

[0044] Pressing head 30, is arranged in the one end of pressing rod 1 and extends cylinder 11, the sensor 3 is equipped in the pressing head 30;

[0045] Tow chain 8, one end is connected with pressing rod 1, the other end is connected with cylinder 11;

[0046] Signal line 12, is arranged in tow chain 8, one end of the signal line 12 passes through pressing rod 1 and pressing head 30 setting, and this end is connected with sensor 3.

[0047] Signal line 12 passes through pressing head 30 and enters the inside of pressing rod 1, then from the side of pressing rod 1, and from the one end of tow chain 8 and pressing rod 1 connection, and from the other end of tow chain 8 and cylinder 11 connection, the other end of the other end is connected with the control part for controlling the action of pressing mechanism;

[0048] As Figure 4 And Figure 5As shown, the pressing rod 1 reciprocates axially (i.e. up and down reciprocation) in the cylinder 11, driving the pressing head 30 and the sensor 3 to move synchronously, and the end of the drag chain 8 connected with the pressing rod 1 moves synchronously with the pressing rod 1, and the end of the drag chain 8 connected with the cylinder 11 does not move; in the movement process, the signal line 12 is protected by the drag chain 8, and for the signal line 12, the two ends thereof are fixedly connected with the sensor 3 and the control part respectively, only the part inside the drag chain 8 moves, and the drag chain 8 has a fixed turning radius, so that when the signal line 12 moves in the drag chain 8, the turning radius of the signal line 12 can be limited by the drag chain 8 to prevent the signal line 12 from being damaged due to bending.

[0049] The signal transmission of the sensor 3 (not limited to a pressure sensor, but also a temperature sensor, a displacement sensor and an electro-physiological sensor, etc. can be installed in the pressing head 30 according to needs) placed in the pressing head 30 is more stable, and the signal line 12 is more durable, and the protection effect of the drag chain 8 on the signal line 12 can increase other sensors 3 with detection functions on the pressing head 30, so that the use of the sensor 3 is more stable and durable, and the signal line 12 is prevented from being separated from the sensor 3 or broken.

[0050] As shown in Figure 2 and Figure 3 In one embodiment, the pressing rod 1 is provided with a wire channel 101, the end of the pressing rod 1 close to the sensor 3 is provided with a wire hole A 102 in communication with the wire channel 101, and the end of the pressing rod 1 away from the sensor 3 is provided with a wire hole B 103 in communication with the wire channel 101, and the signal line 12 passes through the pressing head 30, the wire hole A 102, the wire channel 101 and the wire hole B 103 in sequence.

[0051] A through hole corresponding to the wire hole A 102 is arranged on the top of the pressing head 30, one end of the signal line 12 is connected with the sensor 3, passes through the pressing head 30 and the wire hole A 102 to enter the wire channel 101, and then passes out of the wire hole B 103, and then enters the drag chain 8, and then passes out of the other end of the drag chain 8.

[0052] As shown in Figure 6 Further, the outer side of the drag chain 8 is provided with a protective cover 23 connected with the cylinder 11.

[0053] The protective cover 23 isolates the drag chain 8 from the outside to form protection.

[0054] As shown in Figure 4 Further, the side of the cylinder 11 on which the drag chain 8 is arranged is provided with an opening 29, and the length of the opening 29 in the vertical direction is greater than or equal to the moving distance of the wire hole B 103 in the vertical direction.

[0055] The opening 29 can expose the part of the drag chain 8 and the pressing rod 1, and expose the wire hole B103, so that the signal line 12 can pass out of the wire hole B103 into the drag chain 8, and during the movement of the pressing rod 1, it will not affect the reciprocating movement of the pressing rod 1.

[0056] As shown in the drawings, in one embodiment, one end of the drag chain 8 is connected with the pressing rod 1 through the fixing part A9, and the other end is connected with the cylinder 11 through the fixing part B10. Figure 4

[0057] The two ends of the drag chain 8 are connected with the fixing part A9 and the fixing part B10 in the following ways: screw connection or binding belt connection, etc. The fixing part A9 is connected with the pressing rod 1 through a screw, and the fixing part B10 is connected with the cylinder 11 through a screw.

[0058] As shown in the drawings, in one embodiment, the drag chain 8 comprises a plurality of joints A81 connected in sequence, and the inside of the joint A81 is hollow. Figure 7

[0059] One end of the joint A81 is provided with two first hinge plates 82, and the other end is provided with two second hinge plates 83. The first hinge plate 82 of one joint A81 is rotationally connected with the second hinge plate 83 of another joint A81.

[0060] The distance between the two first hinge plates 82 is less than the distance between the two second hinge plates 83, which facilitates the rotational connection of the adjacent two joints A81. The hollow joint A81 forms a channel through which the signal line 12 can pass, thereby protecting the signal line 12.

[0061] As shown in the drawings, further, the drag chain 8 further comprises a joint B84 located at the end of the drag chain 8 and hingedly connected with the joint A81. One end of the joint B84 is provided with two first hinge plates 82 or two second hinge plates 83, and the other end is provided with two clamping plates 85 which can clamp the signal line 12. Figure 7 The two joints B84 are connected with the fixing part A9 and the fixing part B10 respectively. The two clamping plates 85 can be elastic plates, which can clamp and fix the signal line 12, thereby ensuring the stability of the installation of the signal line 12.

[0062] As shown in the drawings, further, one side of the joint B84 is provided with a mounting plate 86, and the mounting plate 86 is connected with the fixing part A9 or the fixing part B10.

[0063] Figure 8 The mounting plate 86 is provided with a positioning column 87 and a third mounting hole 88, and the fixing part A9 and the fixing part B10 are provided with a plug hole 31 and a fourth mounting hole 32 corresponding to the positioning column 87.

[0064] The mounting plate 86 is provided with a positioning column 87 and a third mounting hole 88, and the fixing part A9 and the fixing part B10 are provided with a plug hole 31 and a fourth mounting hole 32 corresponding to the positioning column 87. ​​​

[0065] In the installation, the installation position of the drag chain 8 is positioned by inserting the positioning column 87 into the insertion hole 31, and then the third mounting hole 88 and the fourth mounting hole 32 are connected by the connecting piece, for example, bolt connection or binding belt connection, etc.

[0066] The joint B84 and the fixing piece A9 (or the fixing piece B10) adopt two connection points, which can ensure the installation stability of the drag chain 8, prevent the inclination of the drag chain 8, and further ensure the installation stability of the signal line 12.

[0067] As shown in Figure 5 Further, the cylinder 11 is provided with a limiting portion 13, and the signal line 12 passes through the limiting portion 13.

[0068] Through the limiting portion 13, the signal line 12 can be limited outside the cylinder 11, and the signal line 12 is further protected.

[0069] Since the cardiopulmonary resuscitation pressing device usually adopts a motor drive, the motor is connected with the pressing rod 1 through a transmission mechanism, so as to realize the control of the reciprocating motion of the pressing head 30. At present, the focus of the existing device is usually on the design and optimization of the transmission mechanism, and the safety of the pressing head 30 is not considered. In the prior art, the pressing head 30 usually adopts a single screw fixation. When performing external chest compression, the pressing head 30 may fall off due to screw falling off or breaking, so as to cause the pressing rod 1 to directly contact the human body for pressing. When the pressing rod 1 directly presses the human body, the patient may be caused fatal injury.

[0070] Therefore, based on the above problems, the connection structure of the pressing head 30 is improved, and the specific improvements are as follows:

[0071] As shown in Figure 9 In one embodiment, the pressing head 30 comprises:

[0072] The fixing portion 2 is arranged at the end of the pressing rod 1, and the fixing portion 2 is provided with a sensor 3.

[0073] The pressing contact portion 4 is arranged at the end of the fixing portion 2, and the pressing contact portion 4 is connected with the fixing portion 2 in the horizontal direction, and the pressing contact portion 4 is connected with the sensor 3 in the vertical direction.

[0074] The sensor 3 is a pressure sensor, which is used for detecting the pressure of the pressing contact portion 4 acting on the human body.

[0075] As shown in Figure 1As shown, the fixing part 2 is a cylindrical structure, the top end of which is connected with the pressing rod 1, and the two can be connected in any one of the following manners: screw connection, interference fit, clamping or integral molding, so that the fixing part 2 is fixedly connected with the pressing rod 1.

[0076] The bottom of the fixing part 2 is an open end, the sensor 3 is inserted from the bottom of the fixing part 2 and installed in the fixing part 2, and then the pressing contact part 4 is installed at the bottom of the fixing part 2, at least the part of the pressing contact part 4 in contact with the human body is elastically arranged, the pressing contact part 4 is in contact with the sensor 3, and the two are connected in the vertical direction (which can be connected by clamping or screw connection, etc.), and the pressing contact part 4 is also connected with the fixing part 2 in the horizontal direction (limiting connection).

[0077] Through the above structure design, the pressing contact part 4 is connected with the sensor 3 and the fixing part 2 in the vertical direction and the horizontal direction respectively, and by increasing the connection of the pressing contact part 4 in different directions, it can prevent the pressing contact part 4 from falling off, and if the connection of the pressing contact part 4 in one direction is disconnected, the connection in the other direction can also ensure that the pressing contact part 4 will not be separated from the pressing rod 1 (or the fixing part 2), thereby avoiding that the pressing rod 1 (or the fixing part 2) directly presses the patient; for example, when the pressing rod 1 continuously reciprocates, due to the existence of vibration and impact force, if the connection of the pressing contact part 4 with the sensor 3 in the vertical direction is disconnected or the sensor 3 is broken, through the connection of the pressing contact part 4 with the fixing part 2 in the horizontal direction, the pressing contact part 4 can be prevented from falling off, thereby avoiding that the pressing rod 1 directly presses the patient and causes harm.

[0078] As shown in the drawings, Figures 9-11 in one embodiment, in the vertical direction, the pressing contact part 4 is connected with the sensor 3 through at least two first screws 5;

[0079] The pressing contact part 4 is provided with an insertion part 402 which can be inserted into the fixing part 2, and in the horizontal direction, the insertion part 402 is connected with the fixing part 2 through at least two second screws 6.

[0080] In this embodiment, the connection mode that the pressing contact part 4 is connected with the sensor 3 through the first screw 5 is provided; and the connection mode that the pressing head 4 is connected with the fixing part 2 through the second screw 6 is provided.

[0081] As shown in the drawings, Figure 10 the side of the pressing contact part 4 away from the pressing rod 1 is provided with at least two first mounting holes 401, and the sensor 3 is provided with first threaded holes corresponding to the first mounting holes 401;

[0082] The first mounting hole 401 is a stepped hole or a counterbore hole;

[0083] The first mounting hole 401 is preferably provided as four, uniformly arranged on the side of the pressing contact part 4 away from the pressing rod 1, in order to facilitate installation, the first mounting hole 401 has a smaller hole diameter at one end of the sensor 3 than at the other end, in installation, the first screw 5 passes through the first mounting hole 401 at the bottom of the pressing contact part 4, and then is screwed with the corresponding first threaded hole on the sensor 3, realizing the fixed connection of the pressing contact part 4 and the sensor 3 in the vertical direction.

[0084] As shown in Figure 11 , the insertion part 402 is a cylindrical structure with one closed end and the other open end, the open end can be inserted into the fixed part 2, and then the second screw 6 is used to connect the insertion part 402 and the fixed part 2 in the horizontal direction;

[0085] The insertion part 402 is fixedly connected with the pressing contact part 4, and the insertion part 402 can be made of hard material to provide support for the whole pressing contact part 4, and the pressing contact part 4 is made of flexible material to facilitate contact with the human body;

[0086] Further, the side surface of the insertion part 402 is provided with at least two second mounting holes 403, and the side surface of the fixed part 2 is provided with second threaded holes 201 corresponding to the second mounting holes 403.

[0087] The second mounting hole 403 is a through hole through which the second screw 6 can be inserted, and the inner diameter of the through hole is greater than the outer diameter of the second screw 6, so that the second screw 6 has a moving space in the through hole;

[0088] The insertion part 402 is inserted into the fixed part 2, the second screw 6 is inserted from the outer side surface of the fixed part 2 and is screwed with the second threaded hole 201, and the end of the second screw 6 can be inserted into the second mounting hole 403 to limit the insertion part 402, thereby realizing the connection of the pressing contact part 4 and the fixed part 2 in the horizontal direction.

[0089] As shown in Figure 11 , in one embodiment, the fixed part 2 is connected with the pressing rod 1 by the fourth screw 28, and the sensor 3 is connected with the fixed part 2 by the third screw 7.

[0090] The fixed part 2 and the pressing rod 1 are connected by the fourth screw 28 (at least four), the fourth screw 28 is inserted upward from the inner top of the fixed part 2 and is screwed with the bottom of the pressing rod 1, then the sensor 3 is placed inside the fixed part 2, the third screw 7 is inserted downward from the top of the outer side of the fixed part 2 and is screwed with the top of the sensor 3, then the top of the sensor 3 covers the fourth screw 28, improving the stability of the connection between the fixed part 2 and the pressing rod 1, thereby preventing the whole pressing head 30 from being separated from the pressing rod 1, and improving the safety of the pressing mechanism.

[0091] The utility model further provides a kind of cardiopulmonary resuscitation pressing equipment, including the pressing mechanism of the utility model, further include: transmission mechanism, the pressing rod 1 is connected in cylinder barrel 11 by transmission mechanism, the transmission mechanism is connected with the drive part 14 being arranged at the outside of cylinder barrel 11.

[0092] Wherein, drive part 14 adopts motor, transmission mechanism can adopt any kind of mechanism in prior art that can make pressing rod 1 realize axial reciprocating motion.

[0093] As Figure 1 The utility model provides a kind of transmission mechanism's structure, the transmission mechanism includes: with the output end connection of drive part 14 driving wheel 15, synchronous belt 16, from driving wheel 17 being connected by synchronous belt 16 with driving wheel 15, with coaxial setting screw rod 18 of from driving wheel 17, and with the screw nut 19 of screw rod 18 screw connection, the screw nut 19 is fixedly connected with pressing rod 1.

[0094] The outside of screw rod 18 is equipped with angular contact bearing 20, angular contact bearing 20 is set in cylinder barrel 11 by bearing fixing piece 21, the top of angular contact bearing 20 is equipped with bearing baffle 22.

[0095] by drive part 14 driving driving wheel 15 rotation, to make synchronous belt 16 drive from driving wheel 17 rotation, from driving wheel 17 rotation drive with coaxial setting screw rod 18 rotation, and screw nut 19 limit connection in cylinder barrel 11, make it can only be straight line motion up and down, therefore, the rotation of screw rod 18 makes that screw nut 19 drives pressing rod 1 reciprocating motion up and down.

[0096] As Figure 7 Further, the outside of cylinder barrel 11 is also equipped with position detection plate 24 and position detection sheet 25, for assisting detection the position of pressing head 4 when working.

[0097] As Figure 4 Further, the bottom and top of cylinder barrel 11 are also respectively equipped with fixed plate 26 and position adjusting plate 27 for installing drive part 14.

[0098] Fixed plate 26 is used to fix the whole equipment on the plane to be fixed, so that cylinder barrel 11 is stationary relative to human body, facilitate pressing rod 1 and pressing head 4 to execute pressing operation.

[0099] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" "internal", "external", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and so on the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation configuration and operation, therefore can not be understood as the restriction of the utility model.

[0100] In the utility model, unless another explicit provision and limitation, the term "installation", "link", "connection", "fix" and so on the term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be directly connected, also can indirectly connect through intermediate medium, can be the communication or the interaction relationship of two elements of two elements, unless another explicit limitation.For ordinary skilled person in the art, can understand the concrete meaning of the above-mentioned term in the utility model according to specific circumstances.

[0101] Although the embodiments of the utility model have been disclosed as above, it is not limited to the application listed in the specification and embodiments only, it can be fully applied to various fields suitable for the utility model, and for the person skilled in the art, other modifications can be easily realized, therefore the utility model is not limited to specific details and the drawings shown and described herein without departing from the general concept defined by the utility model.

Claims

1. A pressing mechanism, characterized in that, include: The pressing rod (1) is installed inside the cylinder (11) in the form of axial reciprocating motion; A pressing head (30) is provided at one end of the pressing rod (1) extending out of the cylinder (11), and a sensor (3) is provided inside the pressing head (30); The cable chain (8) is connected at one end to the pressing rod (1) and at the other end to the cylinder (11); A signal line (12) is set inside the drag chain (8). One end of the signal line (12) passes through the pressing rod (1) and the pressing head (30), and this end is connected to the sensor (3).

2. The pressing mechanism according to claim 1, characterized in that, The pressing rod (1) is provided with a wiring channel (101). The end of the pressing rod (1) near the sensor (3) is provided with a wiring hole A (102) communicating with the wiring channel (101), and the end away from the sensor (3) is provided with a wiring hole B (103) communicating with the wiring channel (101). The signal line (12) passes through the pressing head (30), wiring hole A (102), wiring channel (101) and wiring hole B (103) in sequence.

3. The pressing mechanism according to claim 2, characterized in that, An opening (29) is provided on one side of the cylinder (11) where the drag chain (8) is arranged. The length of the opening (29) in the vertical direction is greater than or equal to the vertical movement distance of the wiring hole B (103).

4. The pressing mechanism according to claim 1, characterized in that, One end of the drag chain (8) is connected to the pressing rod (1) via a fixing member A (9), and the other end is connected to the cylinder (11) via a fixing member B (10).

5. The pressing mechanism according to claim 1, characterized in that, The drag chain (8) includes: a plurality of joints A (81) that are hinged in sequence, wherein the interior of the joints A (81) is hollow; One end of the joint A (81) is provided with two first hinge plates (82), and the other end is provided with two second hinge plates (83). The first hinge plate (82) of one joint A (81) is rotatably connected to the second hinge plate (83) of the other joint A (81).

6. The pressing mechanism according to claim 5, characterized in that, The cable chain (8) further includes a joint B (84) located at the end of the cable chain (8) and hinged to joint A (81), one end of which is provided with two first hinge pieces (82) or two second hinge pieces (83), and the other end is provided with two clamping pieces (85) that clamp the signal line (12).

7. The pressing mechanism according to claim 1, characterized in that, The pressing head (30) includes: A fixing part (2) is provided at the end of the pressing rod (1), and a sensor (3) is provided inside the fixing part (2); The pressing contact part (4) is provided at the end of the fixing part (2). The pressing contact part (4) is connected to the fixing part (2) in the horizontal direction and to the sensor (3) in the vertical direction.

8. The pressing mechanism according to claim 7, characterized in that, In the vertical direction, the pressing contact (4) is connected to the sensor (3) by at least two first screws (5); The pressing contact part (4) is provided with an insertion part (402) that can be inserted into the fixing part (2). In the horizontal direction, the insertion part (402) is connected to the fixing part (2) by at least two second screws (6).

9. The pressing mechanism according to claim 7, characterized in that, The fixing part (2) is connected to the pressing rod (1) by the fourth screw (28), and the sensor (3) is connected to the fixing part (2) by the third screw (7).

10. A cardiopulmonary resuscitation (CPR) compression device, comprising the compression mechanism according to any one of claims 1-9, characterized in that, Also includes: The transmission mechanism, the pressing rod (1) is connected inside the cylinder (11) through the transmission mechanism, and the transmission mechanism is connected to the drive part (14) located on the outside of the cylinder (11).

Images