Hug type shifting machine and holding mechanism thereof

Abstract

The utility model discloses an embracing type shifting machine and an embracing mechanism thereof, the embracing mechanism comprises a mounting plate and further comprises two embracing arm assemblies which are respectively arranged at the left end and the right end of the mounting plate, and any embracing arm assembly can slide downwards relative to the mounting plate and rotate towards the other embracing arm assembly around the extension line of the corresponding sliding direction; the two rotation driving pieces are arranged on the two sides of the back face of the mounting plate correspondingly, any rotation driving piece obliquely extends from top to bottom, and any embracing arm assembly is in sliding fit with the corresponding rotation driving piece; and one end of any one of the two bias pressure pieces is connected or propped against one of the holding arm assemblies, the other end of the bias pressure piece is connected or propped against the mounting plate, and any one of the bias pressure pieces applies bias pressure which enables the corresponding holding arm assembly to be propped against the corresponding rotation driving piece all the time and enables the corresponding holding arm assembly to be located at the highest position all the time. The patient is held tightly in a human hugging simulation mode, the use experience of the patient is more comfortable, and the applicability is improved through the arrangement of the adjusting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of patient transfer equipment, in particular to an embracing type transfer machine and its clamping mechanism. Background Art

[0002] A transfer machine is a tool for transferring patients. It can lift a patient from a seat, and a caregiver can push the patient to the toilet and gently place the patient on the toilet seat by hand. It can also be used in scenarios such as transferring a patient from a seat to a dining chair where patient transfer is required. Such equipment is usually driven by an electric push rod to drive a robotic arm, and the robotic arm lifts or lowers the patient.

[0003] Most of the existing transfer machines are of the hanging basket type. Before lifting, the patient needs to be fixed before lifting. This method is rather troublesome to operate and requires removing the straps. Additionally, when the patient is fixed by the straps, the patient cannot be untied to go to the toilet. Another type of transfer machine is a back-hugging type transfer machine with a structure imitating the human back-hugging. The back-hugging process is simple. This solution uses clamping arms with a fixed angle, and the clamping force on the patient is generated by the patient's weight pressing down. The clamping force of this clamping mechanism is completely generated by gravity, that is, the greater the gravity, the greater the clamping force, and the function of adjusting the clamping force cannot be achieved. Since some weak elderly people cannot bear too much clamping force, this type of transfer machine is not suitable for such patients. For example, Chinese Patent Grant Publication No. CN218685042 U discloses an axillary support type transfer machine clamping device, including a mounting plate, a first axillary support structure and a second axillary support structure. The first axillary support structure and the second axillary support structure are symmetrically arranged on the front of the mounting plate in a mirror image. The first axillary support structure includes a first slide rail inclined downward from top to bottom towards the second axillary support structure, a first slider moving along the first slide rail, a first mounting piece connected to the first slider, a first support arm connected to the first mounting piece, and a first axillary support pad sleeved on the first support arm. The clamping device with this structure relies on the action of the human body's gravity to press down the support arms so that the support arms of the two axillary support structures approach each other to clamp the patient. However, for this clamping device, on the one hand, since the two support arms are always parallel, the greater the patient's gravity, the greater the clamping force, and the clamping force borne by the patient will make the patient uncomfortable, with a poor user experience and even causing secondary injuries. On the other hand, the width of this clamping device is fixed, and for different patients, its applicability is poor. When the body width of the patient exceeds the maximum position of the two axillary support structures, it may not be possible to use it, or the user experience is poor. Therefore, it is necessary to develop a new type of embracing type transfer machine and its clamping mechanism to solve the above problems. Summary of the Utility Model

[0004] Aiming at at least one of the above existing technical problems, the purpose of the present utility model is to provide an embracing type transfer machine and its clamping mechanism.

[0005] The technical solution of the present utility model is as follows:

[0006] An object of the present utility model is to provide a clamping mechanism, including a mounting plate, which includes a front surface and a back surface arranged opposite to each other, and further includes:

[0007] Two clamping arm assemblies, which are respectively arranged at the left and right ends of the mounting plate, and any one of the clamping arm assemblies can slide downward relative to the mounting plate under the action of a downward pressure and rotate around the extension line of its corresponding sliding direction towards the direction of the other clamping arm assembly;

[0008] Two rotation driving members, which are respectively arranged on both sides of the back surface of the mounting plate. Any one of the rotation driving members extends obliquely from top to bottom in a direction away from the back surface of the mounting plate towards the back surface of the mounting plate. Any one of the clamping arm assemblies is in sliding fit with its corresponding rotation driving member;

[0009] Two biasing members, one end of any one of the biasing members is connected to or abuts against one of the clamping arm assemblies, and the other end is connected to or abuts against the mounting plate, and any one of the biasing members applies a biasing force to make its corresponding clamping arm assembly always abut against the corresponding rotation driving member.

[0010] Optionally, any one of the clamping arm assemblies includes:

[0011] A guiding member, which is installed at one end of the mounting plate at an angle to the vertical line, and its upper and lower ends are respectively fixed to the upper and lower sides of the mounting plate. The upper ends of the two guiding members are farther away than the lower ends;

[0012] A clamping arm, which includes a sliding and rotating fitting member that rotates and slides with the corresponding guiding member, a plate-shaped cushion mounting member fixed to the sliding and rotating fitting member, and a sliding abutting member arranged on the cushion mounting member and slidingly abutting against the rotation driving member;

[0013] An arm cushion, which is sleeved on the corresponding cushion mounting member;

[0014] The axis of the guiding member serves as the rotation center line for the rotation of its corresponding clamping arm.

[0015] Optionally, any one of the cushion mounting members includes a cushion fixing plate extending from the front surface of the mounting plate towards the direction away from the front surface of the mounting plate and a plate-shaped abutting member fixing plate arranged at an angle to the cushion fixing plate and opposite to the back surface of the mounting plate. The sliding abutting member is a bull eye bearing arranged on the surface of the abutting member fixing plate facing the back surface of the mounting plate and protruding and extending towards the back surface of the mounting plate;

[0016] The rotation driving member is a fixed block fixed on the back surface of the mounting plate, and a surface of the fixed block facing the bull's eye bearing is formed as an inclined surface that extends obliquely downward from a position close to the back surface of the mounting plate toward a direction away from the back surface of the mounting plate.

[0017] Optionally, any one of the gasket mounting members includes a gasket fixing plate extending from a position close to the front surface of the mounting plate toward a direction away from the front surface of the mounting plate;

[0018] The sliding contact member is a steel bar with one end fixed on the gasket fixing plate and the other end horizontally extending toward the outside of the back surface of the mounting plate. The rotation driving member is a fixed block fixed on the back surface of the mounting plate, and a surface of the fixed block facing the bull's eye bearing is formed as an inclined surface that extends obliquely downward from a position close to the back surface of the mounting plate toward a direction away from the back surface of the mounting plate; or

[0019] The sliding contact member is a straight cylindrical pipe roller with one end fixed on the gasket fixing plate and the other end horizontally extending toward the outside of the back surface of the mounting plate. The rotation driving member is a straight cylindrical pipe roller with upper and lower ends fixed on the back surface of the mounting plate and the lower end being farther away from the back surface of the mounting plate than the upper end.

[0020] Optionally, the guiding member is a guiding shaft, and the sliding and rotating fitting member is a linear bearing or an annular slider; and / or

[0021] Any one of the biasing members is a tension spring with an upper end fixed to the mounting plate and a lower end fixed to the gasket mounting member, or any one of the biasing members is a torsion spring sleeved on the guiding member.

[0022] Optionally, an adjusting mechanism is further provided on the front surface of the mounting plate. The adjusting mechanism includes two relatively and slidably arranged adjusting plates and an adjusting driving member arranged between the mounting plate and the two adjusting plates for driving the two adjusting plates to move closer to or away from each other. A clamping arm assembly is provided at one end of any one of the adjusting plates that moves away from each other, and any one of the rotation driving members is arranged on the back surface of the corresponding adjusting plate.

[0023] Optionally, slide rails that are respectively slidably engaged with the two adjusting plates are further provided on the upper and lower sides of the front surface of the mounting plate.

[0024] Optionally, the adjusting driving member includes a positive and negative thread pulley that can rotate horizontally around the mounting plate and two adjusting blocks respectively connected to the two ends of the positive and negative thread pulley. The positive and negative thread pulley includes a lead screw with a horizontal axis and reverse threads formed at both ends and a pulley body provided in the middle of the lead screw. An avoidance hole is formed in the mounting plate for the pulley body to expose on the back of the mounting plate. The two adjusting blocks are respectively connected to the two adjusting plates in one-to-one correspondence, and one end of any adjusting plate facing the other adjusting plate is provided with a first avoidance groove extending in a direction away from the other adjusting plate to avoid the pulley body and a second avoidance groove for avoiding the corresponding end of the lead screw. The length of the second avoidance groove is greater than the length of the first avoidance groove, and the width of the first avoidance groove is greater than the width of the second avoidance groove. The adjusting block is arranged at the notch of the second avoidance groove of the corresponding adjusting plate.

[0025] Optionally, the adjusting driving member includes a driving gear that rotates around an axis passing through the front and back of the mounting plate and driving racks that are respectively fixed or integral with the two adjusting plates and meshed with the driving gear for transmission. The two driving racks are arranged up and down relatively; the adjusting mechanism further includes a locking screw that is detachably connected to the adjusting plate and the mounting plate respectively and is locked to the mounting plate after the two adjusting plates are adjusted.

[0026] Another object of the present invention is to provide a hugging transfer machine, including the clamping mechanism described in any one of the above.

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] For the hugging transfer machine and its clamping mechanism of the present invention, when the arm assembly slides downward and rotates inward at the same time, it can hug the patient in a way imitating human hugging, and the patient's use experience is more comfortable. And the width between the two arm assemblies can be adjusted according to the body width of the user, which is convenient for the user to easily enter the gap between the two arm assemblies when pressing the two arms on the two arm assemblies, improving the applicability, and at the same time, the clamping force can also be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the drawings and embodiments:

[0030] Figure 1 It is a schematic structural view of an angle (the back of the mounting plate faces forward and includes the arm pad and chest pad) of the clamping mechanism of the embodiment of the present invention;

[0031] Figure 2 It is Figure 1 a schematic structural view with the arm pad and chest pad omitted in

[0032] Figure 3 For Figure 2 Schematic diagram of another angle of the clamping mechanism (front side of the mounting plate facing forward and adjustment mechanism of one of the structures);

[0033] Figure 4 For Figure 3 Partial enlarged view of part A in

[0034] Figure 5 For Figure 3 Schematic diagram of another angle of the clamping mechanism (back side of the mounting plate facing forward and one of the clamping arms omitted);

[0035] Figure 6 For Figure 3 Schematic diagram of one of the clamping arms of the clamping mechanism of

[0036] Figure 7 Schematic diagram of the clamping mechanism of the embodiment of the present utility model (the sliding fit member is a plurality of spaced annular sliders and the sliding abutting member is a steel bar);

[0037] Figure 8 Schematic diagram of one angle of the clamping mechanism of the embodiment of the present utility model (front side of the mounting plate facing forward and the adjustment mechanism is another structure);

[0038] Figure 9 For Figure 8 Schematic diagram of another angle of the clamping mechanism (back side of the mounting plate facing forward);

[0039] Figure 10 Schematic diagram of a transfer machine including the clamping mechanism of the embodiment of the present utility model. Specific embodiments

[0040] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary and are not intended to limit the scope of the present utility model. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0041] A clamping mechanism according to an embodiment of the present utility model, referring to Figures 1 to 9 , mainly includes a mounting plate 10, two clamping arm assemblies 20, two rotation driving members and two biasing members. The mounting plate 10 is a square plate, and the long side is in the horizontal direction, that is, the left-right direction as shown in Figure 3 and the wide side is in the vertical direction, that is, as shown in Figure 3In the up and down direction shown, the front and rear sides of the mounting plate 10 are respectively implemented as the front side (i.e., the side facing the patient) and the back side (the side facing away from the patient). The two arm assemblies 20 are preferably arranged at the left and right ends of the mounting plate 10 in a mirror-symmetrical manner, that is, the two arm assemblies 20 correspond to the left and right arms of the user one by one. Any arm assemblies 20 can slide downward relative to the mounting plate 10 under the pressure of downward pressure, such as the weight pressure of the user (it should be noted that the arm assemblies 20 of the embodiment of the utility model do not slide down in the vertical direction, but have a certain angle with the vertical direction and are inclined in the direction of approaching each other, such as 5°, 10°, etc.) At the same time, the arm assemblies 20 can also rotate around the extension line of the corresponding sliding direction toward the direction of the other arm assemblies 20, that is, the two arm assemblies 20 will slide downward under the pressure of the user's two arms and will also rotate closer to each other, thereby holding the user tightly. The two rotating drive members 30 are arranged in a one-to-one correspondence with the two arm assemblies 20, that is, the two rotating drive members 30 are also preferably arranged in a mirror-symmetrical manner and are arranged on the left and right sides of the back of the mounting plate 10. The two biasing members are similarly arranged in a one-to-one correspondence with the two arm assemblies 20 or the two rotating drive members 30. Specifically, any rotating drive member 30 extends obliquely from the back close to the mounting plate 10 toward the back away from the mounting plate 10 from top to bottom, and any arm assembly 20 is slidably matched with the corresponding rotating drive member 30. Since the rotating drive member 30 protrudes outward from top to bottom, the arm assembly 20 rotates inward around the fixed fulcrum in the sliding direction in the horizontal plane. One end of any biasing member is connected or abutted with the arm assembly 20, and the other end is connected or abutted with the mounting plate 10. The purpose of the biasing member is to apply a biasing force so that the arm assembly 20 on its corresponding side and the rotating drive member on its corresponding side can always slide and abut together, and also so that the arm assembly 20 is always in the highest position (it should be noted that the highest position in the unused and used states is different, and is specifically determined by the biasing coefficient of the biasing member and the weight of the patient, but the highest position in the unused state is definitely higher than that in the used state), that is, the biasing member can bear part of the patient's weight, so that the patient is more comfortable to use. Compared with the clamping device in the background technology that adopts the parallel sliding and approaching clamping method of the armpit support structure, the clamping device of the present application uses a human-like hugging method to hold the patient tightly. Even if the patient is heavy, it will not cause a lot of clamping force on the patient, and the patient's use experience is better and more comfortable.

[0042] For the arm assembly 20, specifically, Figure 1 , Figure 3 , Figures 5 to 9As shown, any arm assembly 20 includes a guide, an arm and an arm pad 23. The upper and lower ends of the guide are respectively connected to the upper and lower sides of one end of the mounting plate 10, and the guide 21 is inclined at an angle to the vertical line. More specifically, the upper ends of the two guides are farther than the lower ends, that is, the guides are inclined inward from top to bottom, and the two guides and the mounting plate 10 form a roughly inverted trapezoidal shape. The specific inclination angle is not limited, and an exemplary angle of 1° to 10°, such as 5°, 10°, etc. The arm is used to install the arm pad 23 for the user to place his arms. More specifically, the arm includes a sliding mating part, a pad mounting part and a sliding abutment part. Among them, the sliding mating part rotates and slides with the corresponding guide part, the pad mounting part is a square plate or a roughly L-shaped plate and is fixed to the sliding mating part for the arm pad installation, and the sliding abutment part is arranged on the pad mounting part and slides with the rotating drive part. The arm pad 23 is a conventional sponge pad or pad made of other materials on the market, and is U-shaped and directly sleeved on the pad mounting member. In the embodiment of the utility model, the armrest rotates with the axis of the guide member as the rotation center line.

[0043] More specifically, the structure of the sliding abutment member can have a variety of different structural forms. Correspondingly, the structure of the rotating drive member can also have a variety of different structural forms. Similarly, the pad mounting member also has a variety of different structural forms. For example, Figures 1 to 5 As shown, the sliding abutment member is a bull's eye bearing 32a, and correspondingly, the rotation driving member is a triangular or right-angled trapezoidal fixing block 30a fixed on the back of the mounting plate 10, the outer end surface of which is a slope 31a inclined from top to bottom, and the slope 31a is a plane. Correspondingly, in order to realize the installation of the bull's eye bearing 32a and the sliding abutment with the slope 31a of the fixing block 30a, specifically, as shown in FIG. Figure 6 As shown, the pad mounting member 22a includes a plate from the front side close to the mounting plate 10 to the front side away from the mounting plate 10, that is, Figure 3 As shown, there is a plate-shaped guard pad fixing plate 221a extending forward and a plate-shaped abutment fixing plate 222a which is at an angle to the guard pad fixing plate 221a. The abutment fixing plate 222a is located on the outer side of the fixing block 30a. Figure 3On the rear side shown, they are opposite to each other and arranged at intervals. The sliding contact member, namely the bull's-eye bearing 32a, is arranged on the contact member fixing plate 222a, protrudes and extends towards the back direction of the mounting plate 10, and slides and contacts the inclined surface 31a of the fixed block 30a. The cushion fixing plate 221a is used for the installation of the arm cushion 23. The cushion fixing plate 221a and the contact member fixing plate 222a are preferably of an integral structure, that is, formed by bending a single plate. The rotation and sliding fitting member 223a is fixed inside the connection part of the cushion fixing plate 221a and the contact member fixing plate 222a, that is, the inner side of the bending part of the two. The rotation and sliding fitting member 223a and the cushion fixing plate 221a and the contact member fixing plate 222a can be connected together by welding. Another alternative embodiment is as follows Figure 7 As shown, the rotation driving member 30b is still fixed on the back surface of the mounting plate 10, and the outer side surface is an inclined surface 31b that slopes outward from top to bottom. This inclined surface 31b is not a flat surface, but an arc surface that is arcuately curved outward. The sliding contact member 32b is a substantially L-shaped steel bar that slides and contacts the arc-shaped inclined surface. Correspondingly, the cushion mounting member 22b only includes a square plate member, that is, the above-mentioned cushion fixing plate 221b, and does not include the contact member fixing plate. One end of the steel bar is fixed on the outer side surface of the cushion mounting member, that is, the cushion fixing plate 221b, and the other end bends and extends towards the right side of the back surface of the mounting plate 10 as shown in Figure 7 As shown and slides and contacts the arc-shaped inclined surface 31b. Another alternative embodiment, the sliding contact member and the rotation driving member can also be conventional straight cylindrical pipe rollers in the prior art (not shown). Just as the rotation driving member, it is also arranged to slope outward from top to bottom. And as the sliding contact member, it is arranged like the above-mentioned steel bar, that is, horizontally arranged and one end is connected to the cushion fixing plate.

[0044] For the guiding member, it can be selected as a conventional cylindrical guiding shaft on the existing market. For the rotation and sliding fitting member, it can be selected as a linear bearing 223a that is sleeved on and slides with the guiding shaft as shown in Figure 5 and Figure 6 As shown, or it can be a plurality of annular sliders 222b that are opposite to each other and arranged at intervals along the axis direction of the guiding member as shown in Figure 7 As shown. The sliders 222b are fixed to the inner side surface of the cushion fixing plate 221b. For the biasing member 40, it can be selected as a tension spring 40a that is arranged obliquely in the vertical direction as shown in Figure 5 As shown. The upper end of the tension spring 40a is fixed to the mounting plate 10, and the lower end is connected to the cushion mounting member, specifically the contact member fixing plate 222a. It should be noted that the two tension springs 40a are also arranged with the upper end being farther than the lower end. As an alternative embodiment, the biasing member can also be a torsion spring 40b as shown in Figure 8 As shown ( Figure 7The structure shown applies a torsion spring as a biasing member). The torsion spring 40b is sleeved on the guide shaft and abuts between the front surface of the mounting plate 10 and the inner side surface of the cushion fixing plate 221b at both ends.

[0045] According to some preferred embodiments of the present invention, since the body widths of different patients are inconsistent, and the distance between the two arm components 20 in the unused state, that is, at the highest position, is fixed and unchanged, it cannot adapt to some body widths that exceed the width of the two arm components 20 at the highest position. When trying to enter the gap between the two arm components 20 during use, there are great obstacles. In order to make the clamping mechanism have better applicability, the clamping mechanism of the embodiment of the present invention further includes an adjusting mechanism 50 for adjusting the distance between the two arm components 20. Specifically, the adjusting mechanism 50 includes two relatively and slidably arranged adjusting plates, an adjusting driving member for driving the two adjusting plates to move closer to or away from each other to adjust their distance, and a locking screw 53 for fixing the adjusting plates to the mounting plate after the distance between the two adjusting plates is adjusted. The two arm components 20 are respectively connected to the mutually remote ends of the two adjusting plates. It should be noted that when the adjusting mechanism 50 is provided, one end of the above-mentioned tension spring 40a is connected to the adjusting plate and the other end is connected to the arm component 20. For the adjusting mechanism 50, its structure can also have various forms. Exemplarily, as Figure 3 and Figure 4 shown, the two adjusting plates 51a are arranged relatively left and right on the front side of the front surface of the mounting plate 10, and each adjusting plate 51a has two inwardly recessed grooves at the end facing the other adjusting plate 51a. The sizes of the two grooves are different and are in a T shape. For the convenience of description and distinction, the two grooves are respectively described as a first avoidance groove 511a and a second avoidance groove 512a, where the first avoidance groove 511a is on the outside and the second avoidance groove 512a is on the inside. The length of the first avoidance groove (that is, the side in the left-right direction as Figure 4 shown) is smaller than that of the second avoidance groove 512a and the width of the first avoidance groove 511a (that is, as Figure 4The upper and lower sides shown in the figure are larger than the second avoidance groove 512a, and the second avoidance groove 512a runs through the first avoidance groove 511a. When the two adjustment plates 51a are close together, the first avoidance groove 511a and the second avoidance groove 512a on the two adjusters form a cross. The adjustment drive member 52a includes a forward and reverse wire pulley 521a and two adjustment blocks 522a. The two adjustment blocks 522a are arranged one by one at the notches of the second avoidance grooves 512a of the two adjustment plates 51a, that is, at the connection with the first avoidance groove 511a, and any of the adjustment blocks 522a has a threaded hole (not shown) with an axis consistent with the length direction of the second avoidance groove 512a. The positive and negative thread pull wheel 521a includes a screw rod 5212a whose axis is consistent with the length direction of the second avoidance groove 512a and a circular pull wheel body 5211a (the outer peripheral surface has a radial concave and convex anti-slip pattern) fixed at the middle position of the screw rod 5212a. The threads at both ends of the screw rod 5212a are opposite and the two ends of the screw rod 5212a are respectively threadedly matched with the threaded holes of the two adjustment blocks 522a on the two adjustment plates 51a. The length of any second avoidance groove 512a is slightly longer than the length of one end of the screw rod 5212a or the lengths of the two are similar and the width of any second avoidance groove 512a is slightly larger than the diameter of the screw rod 5212a or the two are similar. When the two adjustment plates 51a are close together, the two first avoidance grooves 511a enclose a rectangle with a width greater than the length, and the width of the rectangle is slightly larger than the diameter of the pull wheel body 5211a or the two are similar. By turning the dial body 5211a with a finger, the screw rod 5212a is driven to rotate horizontally relative to the mounting plate 10. The horizontal rotation of the screw rod 5212a drives the adjusting block 522a matched with the screw rod 5212a to make a linear displacement along the axis direction of the screw rod 5212a, and then drives the adjusting plate 51a fixed with the adjusting block 522a to make a linear displacement, thereby adjusting the distance between the two adjusting plates 51a. It should be noted that at the installation position of the dial body 5211a, the diameter of the screw rod 5212a is larger than that of other positions, which can play a role in limiting the close position of the adjusting block 522a. It should be noted that since a chest pad 60 is also provided on the front of the mounting plate 10 to prevent the patient's chest from being damaged by components such as the adjustment mechanism 50 on the front of the mounting plate 10, a protective component such as a sponge pad is also provided on the front of the mounting plate 10 or the front of the adjustment mechanism 50. Therefore, if the distance between the two adjustment plates 51a is adjusted by operating the adjustment drive member 52a, it is necessary to make the adjustment drive member 52a, more specifically the dial body 5211a, exposed outside the back of the mounting plate 10, such as Figure 8 As shown, a evacuation hole (not shown) is opened at the middle position of the mounting plate 10 corresponding to the position of the paddle wheel body 5211a, and the paddle wheel body 5211a is at least partially rotatably disposed in the evacuation hole and extends to the back of the mounting plate 10. In another alternative embodiment, the structure of the adjustment plate is changed and the structure of the adjustment drive member is also changed. Specifically, asFigure 8 As shown, the adjusting driving member 52b includes a driving gear 521b whose axis passes through the front and back surfaces of the mounting plate 10, that is, in the front-back direction as shown, Figure 8 and a driving rack 522b which is disposed oppositely up and down, meshes with the driving gear 521b, and is fixedly connected or integrally formed with the two adjusting plates 51b. For the adjusting plate 51b, as shown, Figure 8 the structures of the two adjusting plates 51b are the same. Therefore, only one of them will be taken as an example for illustration. One end of any adjusting plate 51b facing the other adjusting plate 51b, that is, the inner end, is provided with an inwardly concave groove 513b. On the upper and lower sides of the groove 513b, two outwardly protruding convex blocks are respectively formed (for the convenience of distinction, the two convex blocks are respectively described as the first convex block 511b and the second convex block 512b). The first convex block 511b is L-shaped, the second convex block 512b is linear, and the first convex block 511b and the second convex block 512b have the same length and are matched with each other to achieve docking. The end faces of the two first convex blocks 511b of the two adjusting blocks 51b facing each other are fixedly connected or integrally formed with the driving rack 522b. The driving gear 521b is exactly located between the grooves 513b of the two adjusting blocks 51b. By rotating the driving gear 521b, the driving rack 522b can be horizontally moved left and right, and further the two adjusting blocks 51b can be moved closer or farther away from each other left and right to achieve the adjustment of the spacing. For the adjusting mechanism 50 of the previous structural form, due to the self-locking function of the lead screw and the adjusting block 522a, the adjusting plate 51a will not move after adjustment. For the adjusting mechanism 50 of the latter structural form, since its driving gear 521b does not have a self-locking function, a locking screw 53 needs to be provided to lock and fix the adjusting plate 51b and the mounting plate 10. For the locking screw 53, optionally, as shown, Figure 9 the two locking screws 53 are connected to the upper end of the back surface of the mounting plate 10, one on the left and the other on the right. Correspondingly, a connecting groove (not shown) extending in the left-right direction can be provided on the back surface of each adjusting plate. When the inner end of the locking screw 53 is connected in the connecting groove, the adjusting plate and the mounting plate 10 can be locked and fixed. As an alternative embodiment, a connecting groove (not shown) can also be provided on the mounting plate 10, and the inner end of the locking screw 53 is connected to the adjusting plate in a releasable manner, and the locking screw 53 slides in the connecting groove on the mounting plate 10 when it is loosened.

[0046] According to some preferred embodiments of the present invention, as shown in Figure 3 and Figure 8 shown, slide rails 54 for guiding the left and right movement of the two adjusting plates are further provided on the upper and lower sides of the mounting plate 10, that is, the two slide rails extend in the horizontal direction, that is, in the left-right direction as shown, Figure 3 shown.

[0047] The clamping mechanism of the embodiment of the present utility model is provided with an adjusting mechanism, which facilitates the user to easily enter the gap between the two clamping arm assemblies when pressing the two arms on the two clamping arm assemblies, improving the applicability. At the same time, the clamping force can also be adjusted, so that the clamping force of the clamping arm assembly 20 on the patient is adjustable, and it will not cause discomfort or even secondary injury to the patient.

[0048] The embodiment of the present utility model also provides a hugging type transfer machine, as Figure 10 shown, which mainly includes a frame 200 and the clamping mechanism 100 of the above embodiment provided at the upper end of the frame 200. Optionally, it further includes movable walking wheels 300 provided at the bottom end of the frame 200, a knee pad 500 installed in the middle of the frame 200, and a push-pull grip 400 provided at the upper end of the frame 200 for the user to hold. Since it includes the clamping mechanism of the above embodiment, it at least has the beneficial effects of the clamping mechanism of the above embodiment, and will not be elaborated here.

[0049] It should be understood that the above specific embodiments of the present utility model are only used for exemplary illustration or explanation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A clamping mechanism, comprising a mounting plate, which comprises a front side and a back side arranged opposite to each other, characterized in that: Also includes: Two arm assemblies are respectively arranged at the left and right ends of the mounting plate, and any of the arm assemblies can slide downward relative to the mounting plate under the action of downward pressure and rotate toward the direction of the other arm assemblies around the extension line of the corresponding sliding direction; Two rotating drive members are respectively arranged on both sides of the back side of the mounting plate, any of the rotating drive members extends obliquely from the back side close to the mounting plate toward the back side away from the mounting plate from top to bottom, and any of the arm assemblies is slidably matched with the corresponding rotating drive member; Two biasing members, one end of each biasing member is connected or abutted with one of the arm assemblies, and the other end is connected or abutted with the mounting plate, and each biasing member applies a biasing force that causes the corresponding arm assemblies to always abut against the corresponding rotating drive members.

2. The clamping mechanism according to claim 1, characterized in that: Any of the arm assemblies comprises: A guide member is installed at one end of the mounting plate at an angle to the vertical line and its upper and lower ends are respectively fixed to the upper and lower sides of the mounting plate, and the upper ends of the two guide members are farther than the lower ends; The arm comprises a sliding mating member that is rotatably and slidably matched with the corresponding guide member, a plate-shaped pad mounting member fixed to the sliding mating member, and a sliding abutment member provided on the pad mounting member and slidably abutting against the rotating drive member; An arm pad, sleeved on the corresponding pad mounting piece; The axis of the guide member serves as the rotation center line of the corresponding arm rotation.

3. The clamping mechanism according to claim 2, characterized in that: Any of the pad mounting parts comprises a pad fixing plate extending from the front side close to the mounting plate toward the front side away from the mounting plate and a plate-shaped abutment fixing plate arranged at an angle with the pad fixing plate and opposite to the back side of the mounting plate, wherein the sliding abutment is a bull's eye bearing arranged on a surface of the abutment fixing plate facing the back side of the mounting plate and protruding and extending toward the back side of the mounting plate; The rotating driving member is a fixed block fixed on the back of the mounting plate, and the side of the fixed block facing the bull's eye bearing is formed as an inclined surface extending from top to bottom from the back of the mounting plate close to the back of the mounting plate toward the back of the mounting plate away from the back of the mounting plate.

4. The clamping mechanism according to claim 3, characterized in that: Any of the pad mounting members includes a pad fixing plate extending from a front surface close to the mounting plate toward a front surface away from the mounting plate; The sliding abutment is a steel bar with one end fixed to the pad fixing plate and the other end extending horizontally toward the outside of the back side of the mounting plate, and the rotating driving member is a fixed block fixed to the back side of the mounting plate, and the side of the fixed block facing the bull's eye bearing is formed as an inclined surface extending obliquely from top to bottom from the back side close to the mounting plate toward the back side away from the mounting plate; or The sliding abutment member is a straight cylindrical pipe roller with one end fixed on the guard pad fixing plate and the other end extending horizontally toward the outside of the back side of the mounting plate. The rotating driving member is a straight cylindrical pipe roller with the upper and lower ends fixed on the back side of the mounting plate and the lower end farther away from the back side of the mounting plate than the upper end.

5. The clamping mechanism according to claim 2, characterized in that: The guide member is a guide shaft, and the sliding fitting member is a linear bearing or an annular slider; and / or Any of the biasing members is a tension spring whose upper end is fixed to the mounting plate and whose lower end is fixed to the pad mounting member, or any of the biasing members is a torsion spring sleeved on the guide member.

6. The clamping mechanism according to any one of claims 1 to 5, characterized in that: It also includes an adjustment mechanism arranged on the front side of the mounting plate, the adjustment mechanism includes two adjustment plates arranged relatively and slidably and an adjustment drive member arranged between the mounting plate and the two adjustment plates for driving the two adjustment plates to move closer to or away from each other, an arm assembly is provided on one end of any of the adjustment plates that are away from each other, and any of the rotation drive members is arranged on the back side of the corresponding adjustment plate.

7. The clamping mechanism according to claim 6, characterized in that: Slide rails which are respectively slidably matched with the two adjustment plates are also arranged on the upper and lower sides of the front side of the installation plate.

8. The clamping mechanism according to claim 6, characterized in that: The adjusting drive member includes a forward and reverse wire pull wheel which can be horizontally rotated around the mounting plate and two adjusting blocks relatively connected to the two ends of the forward and reverse wire pull wheels, the forward and reverse wire pull wheels include a screw rod with a horizontal axis and reverse threads formed at both ends and a pull wheel body arranged in the middle of the screw rod, the mounting plate is provided with an avoidance hole for the pull wheel body to be exposed on the back side of the mounting plate, the two adjusting blocks are connected to the two adjusting plates in a one-to-one correspondence and any one of the adjusting plates facing the other adjusting plate is provided with a first avoidance groove extending in a direction away from the other adjusting plate to avoid the pull wheel body and a second avoidance groove to avoid the corresponding end of the screw rod, the length of the second avoidance groove is greater than the length of the first avoidance groove and the width of the first avoidance groove is greater than the width of the second avoidance groove, and the adjusting block is arranged at the notch of the second avoidance groove of the corresponding adjusting plate.

9. The clamping mechanism according to claim 6, characterized in that: The adjusting drive member includes a driving gear rotating around an axis passing through the front and back directions of the mounting plate and a driving rack respectively fixed to or integrated with the two adjusting plates and meshing with the driving gear for transmission, and the two driving racks are arranged opposite to each other up and down; the adjusting mechanism also includes a locking screw respectively detachably connected to the adjusting plate and the mounting plate and locked with the mounting plate after the two adjusting plates are adjusted.

10. An embracing lift, characterized in that: It comprises the clamping mechanism described in any one of claims 1 to 9.

Images