Knee rest assembly for shifting machine

Abstract

The utility model relates to the technical field of auxiliary displacement instruments and equipment, in particular to a knee rest assembly for a displacement machine. The knee backup plates are located on the two sides of a supporting frame of the shifting machine, the fixing rod is connected with the knee backup plates on the two sides, a first through groove allowing the fixing rod to penetrate through is formed in the supporting frame, a gap allowing the fixing rod to act exists between the side wall of the first through groove and the fixing rod, and an installation base is fixed to the fixing rod and located in the supporting frame. A second connecting rod is fixed on the mounting seat, a rotating shaft is fixed in the supporting frame, a driving rod is rotationally connected to the rotating shaft, the second connecting rod penetrates through the end part of the driving rod, a spring is fixed at the end part, close to the second connecting rod, of the driving rod, and the end part of the spring is fixedly connected with the supporting frame. The power mechanism drives the driving rod to rotate around the rotating shaft, so that the fixing rod fixedly connected with the mounting base acts in the first through groove to drive the knee backup plate to approach the human body, the lower limbs of the human body can lean on the knee backup plate, and the knee backup plate is more convenient to use and better in safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to auxiliary displacement instrument equipment technical field especially relates to a knee leaning assembly for displacement machine. BACKGROUND

[0002] With the acceleration of social process, the number of the elderly and other people with difficulty in movement is increasing, and they often need help from others in daily life, such as standing up, walking, using the toilet or taking a bath, and need others to support to maintain body balance. In order to help people with difficulty in walking to walk normally, auxiliary instruments such as displacement machines are often used to assist people in walking.

[0003] Most of the knee rests in the existing displacement machine are fixed. However, during the process from sitting to standing, the knee part of the lower limbs will have a slight backward swing, causing the whole lower limbs to slightly move away from the knee rest, and the knee rest cannot provide effective support, or the user needs to actively approach the knee rest, resulting in inconvenience in use. SUMMARY

[0004] In order to solve the problem that most of the knee rests in the existing displacement machine are fixed and cannot provide effective support to the lower limbs, the utility model provides a knee rest assembly for displacement machine. The power mechanism drives the driving rod to rotate around the rotating shaft, so that the fixed rod fixedly connected with the mounting seat moves in the first through groove, driving the knee rest plate to approach the human body, thereby providing a leaning support for the lower limbs of the human body, making the use more convenient and safe.

[0005] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A knee rest assembly for displacement machine, comprising a knee rest plate located on both sides of the support frame of the displacement machine and a fixed rod connecting the two knee rest plates, a first through groove is formed in the support frame for the fixed rod to pass through, and there is a gap between the side wall of the first through groove and the fixed rod for the movement of the fixed rod, a mounting seat is fixed on the fixed rod, a second connecting rod is fixed on the mounting seat, a rotating shaft is fixed on the support frame, a driving rod is rotatably connected to the rotating shaft, the second connecting rod passes through the end of the driving rod, a spring is fixed to the end of the driving rod close to the second connecting rod, and the end of the spring is fixedly connected with the support frame, and a power mechanism is provided on the displacement machine, which is used to drive the driving rod to rotate around the rotating shaft. The driving rod rotates around the rotating shaft, so that the fixed rod moves in an arc within the first through groove. In the design requirements of the present scheme, when the driving rod rotates around the rotating shaft by a certain angle, the distance of the transverse movement of the end of the driving rod in the movement track of the arc movement is much larger than the distance of the vertical movement, which is caused by the circular movement itself. Therefore, there is a gap between the outer side wall of the fixed rod and the first through groove, which provides space for the movement of the fixed rod.

[0007] Further, the mounting seat is fixed with a first connecting rod, the support frame is fixed with a third connecting rod, the third connecting rod is above the first connecting rod, a connecting plate is hinged to the third connecting rod, and the end of the connecting plate away from the third connecting rod is hinged to the first connecting rod. The stability of the mounting seat during rotation is ensured.

[0008] Further, a fourth connecting rod is further fixed in the support frame, and the spring end is fixedly connected with the fourth connecting rod.

[0009] Further, a limiting rod is further fixed on the support frame, and the limiting rod is used for limiting the end of the driving rod away from the second connecting rod. The limiting rod is located on the lower side of the driving rod and is in contact with the driving rod. The driving rod and the mounting seat are kept in this position by cooperating with the spring.

[0010] Further, the fixing rod comprises two first rod bodies fixedly connected with the knee rest and a second rod body connecting the two first rod bodies, and the positions of the first rod bodies relative to the second rod body are adjustable. It is suitable for different users.

[0011] Further, a first sleeve is sleeved on the first rod body, and a second sleeve is sleeved on the second rod body. The end of the second sleeve away from the second rod body is fixedly connected with the first sleeve. A plurality of first through holes are formed in the first rod body, and a plurality of second through holes matched with the first through holes are formed in the first sleeve. Screws are arranged in the first through holes and the second through holes to connect and fix the first rod body and the first sleeve. A plurality of third through holes are formed in the second rod body, and a plurality of fourth through holes matched with the third through holes are formed in the second sleeve. Screws are arranged in the third through holes and the fourth through holes to connect and fix the second rod body and the second sleeve.

[0012] Further, a second groove is formed in the end of the driving rod, and the second connecting rod passes through the second groove and is fixed on the mounting seat.

[0013] Further, the power mechanism comprises an electric push rod and a pushing shaft. The electric push rod seat of the electric push rod is located in the support frame, the telescopic end of the electric push rod is above the electric push rod seat and is connected to the pushing shaft. When the pushing shaft is driven by the electric push rod to move upward, it contacts the lower side of the end of the driving rod away from the second connecting rod.

[0014] Further, a sliding groove is arranged on the support frame, the pushing shaft can slide in the sliding groove, the lower part of the sliding groove is vertically arranged, and the upper part is curved towards the side close to the driving rod. The electric push rod seat is hinged to the support frame, and the telescopic end of the electric push rod is hinged to the pushing shaft.

[0015] Further, the sliding groove is a plurality of sliding grooves, and the pushing shaft is arranged in each sliding groove. The pushing shaft is provided with a supporting plate.

[0016] By the above technical scheme, the utility model has the advantages that

[0017] 1. The output end of the power mechanism moves upward to drive the driving rod to rotate around the rotating shaft, so that the fixed rod fixedly connected with the mounting seat moves in an arc in the first through groove, drives the knee leaning plate to approach the lower limbs of the human body, so that the lower limbs of the human body are better supported, and the safety of the human body standing is ensured.

[0018] 2. The first connecting rod is fixed on the mounting seat, the third connecting rod is fixed in the support frame, and the two ends of the connecting plate are hingedly connected to the first connecting rod and the third connecting rod, so that the mounting seat drives the connecting plate to rotate when rotating, thereby ensuring the stability of the mounting seat during rotation.

[0019] 3. The first sleeve on the first rod body of the fixed rod is adjustable in position, used for adjusting the front and back positions of the knee leaning plate, and the second sleeve on the second rod body of the fixed rod is adjustable in position, used for adjusting the left and right positions of the knee leaning plate, so that different users can be adapted. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the displacement machine of the utility model;

[0021] Figure 2 It is a structure schematic view of the displacement machine hidden shell of the utility model;

[0022] Figure 3 It is a structure schematic view of the displacement machine of the utility model; Figure 2 It is an enlarged view of the structure at A in the displacement machine of the utility model;

[0023] Figure 4 It is a structure schematic view of the displacement machine of the utility model; Figure 2 It is a structure schematic view of the displacement machine of the utility model;

[0024] Figure 5 It is an enlarged view of the structure at B in the displacement machine of the utility model; Figure 4 It is an enlarged view of the structure at B in the displacement machine of the utility model;

[0025] Figure 6 It is a structure schematic view of the knee leaning assembly of the displacement machine of the utility model;

[0026] Figure 7 It is a side view of the support frame of the displacement machine of the utility model.

[0027] In the attached diagram, the following numbers are used: 1 is the transfer machine, 2 is the base, 3 is the caster wheel, 4 is the handrail, 5 is the armrest assembly, 6 is the outer shell, 20 is the support frame, 21 is the first through groove, 22 is the third connecting rod, 23 is the rotating shaft, 24 is the connecting plate, 25 is the fourth connecting rod, 26 is the slide groove, 27 is the limiting rod, 31 is the knee rest plate, 32 is the fixing rod, 321 is the first rod body, 322 is the second rod body, 323 is the first sleeve, 324 is the second sleeve, 33 is the mounting base, 34 is the first connecting rod, 35 is the second connecting rod, 36 is the drive rod, 361 is the second through groove, 37 is the spring, 41 is the electric push rod, 42 is the push shaft, 43 is the hinge shaft, and 50 is the support plate. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] like Figures 1-7 As shown, this embodiment provides a knee support assembly for a transfer machine, including knee support plates 31 located on both sides of the support frame 20 of the transfer machine 1 and a fixing rod 32 connecting the two knee support plates 31. The support frame 20 includes two opposing upright plates. The support frame 20 is fixed on the base 2 of the transfer machine 1. The lower part of the base 2 is provided with multiple casters 3.

[0030] The two upright plates of the support frame 20 are provided with a first through groove 21 for the fixing rod 32 to pass through. There is a gap between the side wall of the first through groove 21 and the fixing rod 32 to allow the fixing rod 32 to move. There is a gap between the outer side wall of the fixing rod 32 and the side wall of the first through groove 21 to allow space for the movement of the fixing rod 32.

[0031] like Figures 2-6 As shown, a mounting base 33 is fixed on the fixing rod 32. The longitudinal section of the mounting base 33 is U-shaped. The fixing rod 32 is fixedly connected to the mounting base 33 by bolts. The mounting base 33 is located between the two upright plates of the support frame 20. A horizontal second connecting rod 35 is fixed on the mounting base 33. A horizontal rotating shaft 23 is fixed on the support frame 20. A driving rod 36 is rotatably connected to the rotating shaft 23. The second connecting rod 35 passes through the end of the driving rod 36. A second through groove 361 is opened at the end of the driving rod 36. The second connecting rod 35 passes through the second through groove 361 and is fixed on the mounting base 33.

[0032] A spring 37 is fixed to the end of the drive rod 36 near the second connecting rod 35. The end of the spring 37 is connected and fixed to the support frame 20. Specifically, a horizontal fourth connecting rod 25 is fixed on the support frame 20. The fourth connecting rod 25 is located above the mounting base 33, and the end of the spring 37 is connected and fixed to the fourth connecting rod 25. The spring 37 pulls one end of the drive rod 36.

[0033] The support frame 20 is also fixed with a limiting rod 27, which is used to limit the end of the driving rod 36 away from the second connecting rod 35. Figure 5 The limiting rod 27 is located at the lower side of the driving rod 36 and in contact with the driving rod 36. The spring 37 pulls one end of the driving rod 36, and the limiting rod 27 is against the lower side of the other end of the driving rod 36, so that the driving rod 36 can be kept in this position.

[0034] The shifting machine 1 is provided with a power mechanism, which is used to drive the driving rod 36 to rotate around the rotating shaft 23. The power mechanism comprises an electric push rod 41 and a pushing shaft 42. The electric push rod seat of the electric push rod 41 is located in the support frame 20, and the electric push rod seat is hinged on the two vertical plates of the support frame 20 through a hinge shaft 43. The telescopic end of the electric push rod 41 is located above the electric push rod seat and is hinged with the pushing shaft 42. When the pushing shaft 42 is driven by the electric push rod 41 to move upward, it contacts the lower side of the end of the driving rod 36 away from the second connecting rod 35.

[0035] Specifically, the support frame 20 is provided with a sliding groove 26, and the pushing shaft 42 can slide in the sliding groove 26. The lower part of the sliding groove 26 is vertically arranged, and the upper part is curved towards the side close to the driving rod 36. In this state, when the pushing shaft 42 moves from bottom to top along the sliding groove 26, it first moves vertically upward, and then moves obliquely upward to contact the driving rod 36. In another embodiment, the sliding groove 26 is vertically arranged, and the pushing shaft 42 fixed on the upper end of the electric push rod 41 can contact the driving rod 36 during upward movement.

[0036] In this embodiment, the distance that the knee rest 31 can move forward and backward is 2-5 cm.

[0037] The sliding groove 26 is a plurality of sliding grooves, and the pushing shaft 42 is slidingly arranged in each sliding groove 26. The pushing shaft 42 is provided with a support plate 50.

[0038] Referring to Figure 5 The mounting seat 33 is fixed with a first connecting rod 34, and the support frame 20 is fixed with a third connecting rod 22. The third connecting rod 22 is located above the first connecting rod 34, and the third connecting rod 22 is hinged with a connecting plate 24. The end of the connecting plate 24 away from the third connecting rod 22 is hinged with the first connecting rod 34.

[0039] In this embodiment, the first connecting rod 34 and the third connecting rod 22 are both two, and the connecting plate 24 is four. The connecting plate 24 also rotates when the driving rod 36 rotates. The rotation center of the connecting plate 24 is the third connecting rod 22, so that the mounting seat 33 and the fixed rod 32 remain stable during rotation.

[0040] Referring to Figure 6The fixed rod 32 comprises two first rod bodies 321 fixedly connected with the knee rest 31 and a second rod body 322 connecting the two first rod bodies 321, and the position of the first rod body 321 relative to the second rod body 322 is adjustable.

[0041] Specifically, the first rod body 321 is sleeved with a first sleeve 323, the second rod body 322 is sleeved with a second sleeve 324, the end of the second sleeve 324 away from the second rod body 322 is fixedly connected with the first sleeve 323, a plurality of first through holes are formed in the first rod body 321, a plurality of second through holes matched with the first through holes are formed in the first sleeve 323, and the first rod body 321 and the first sleeve 323 are fixedly connected by means of bolts inserted into the first through holes and the second through holes.

[0042] The first sleeve 323 and the second sleeve 324 are fixedly connected and present a "T" shape after being connected, the two ends of the second rod body 322 are sleeved with the second sleeve 324, the position of the first sleeve 323 on the first rod body 321 is adjustable, and the first sleeve 323 is used for adjusting the front and back positions of the knee rest 31, the position of the second sleeve 324 on the second rod body 322 is adjustable, and the second sleeve 324 is used for adjusting the left and right positions of the knee rest 31.

[0043] When the user stands on the base 2 of the shifting machine 1, the operator starts the electric push rod 41, the joggle top push shaft 42 on the telescopic end of the electric push rod 41 moves upward along the sliding groove 26, the top push shaft 42 contacts the lower side of the driving rod 36, drives the driving rod 36 to rotate around the rotating shaft 23, at this time, the second connecting rod 35 connected with the end of the driving rod 36 drives the mounting seat 33 and the fixed rod 32 to rotate counterclockwise (as shown in Figure 5 ) around the rotating shaft 23, so that the knee rest 31 fixed on the end of the fixed rod 32 moves towards the direction close to the lower limbs of the human body until contacting the knee, at this time, the electric push rod 41 stops moving and remains in this position, at this time, the operator can shift the shifting machine 1 and the user to another position.

[0044] The above-described embodiments are only preferred embodiments of the present application, and are not intended to limit the scope of the present application, so that equivalent changes or modifications made according to the structure, features and principles described in the patent range of the present application should be included in the patent range of the present application.

Claims

1. A knee rest assembly for a patient transfer machine, characterized in that, Includes knee rests (31) on both sides of the support frame (20) of the transfer machine (1) and a fixing rod (32) connecting the two knee rests (31). The support frame (20) has a first through groove (21) through which the fixing rod (32) passes. There is an interval between the side wall of the first through groove (21) and the fixing rod (32) for the fixing rod (32) to move. A mounting base (33) is fixed on the fixed rod (32), a second connecting rod (35) is fixed on the mounting base (33), a rotating shaft (23) is fixed on the support frame (20), a driving rod (36) is rotatably connected to the rotating shaft (23), and the second connecting rod (35) passes through the end of the driving rod (36); A spring (37) is fixed to the end of the drive rod (36) near the second connecting rod (35), and the end of the spring (37) is connected and fixed to the support frame (20); The shifting machine (1) is equipped with a power mechanism, which is used to drive the drive rod (36) to rotate around the rotating shaft (23).

2. The knee support assembly for a patient transfer machine according to claim 1, characterized in that, The mounting base (33) is fixed with a first connecting rod (34), and the support frame (20) is fixed with a third connecting rod (22). The third connecting rod (22) is located above the first connecting rod (34), and a connecting plate (24) is hinged to the third connecting rod (22). The end of the connecting plate (24) away from the third connecting rod (22) is hinged to the first connecting rod (34).

3. A knee rest assembly for a patient transfer machine according to claim 1, characterized in that, A fourth connecting rod (25) is also fixed on the support frame (20), and the end of the spring (37) is connected and fixed to the fourth connecting rod (25).

4. A knee rest assembly for a patient transfer machine according to claim 1, characterized in that, A limiting rod (27) is also fixed on the support frame (20). The limiting rod (27) is used to limit the end of the drive rod (36) away from the second connecting rod (35).

5. A knee rest assembly for a patient transfer machine according to claim 1, characterized in that, The fixed rod (32) includes two first rods (321) fixedly connected to the knee rest plate (31) and a second rod (322) connecting the two first rods (321). The position of the first rod (321) relative to the second rod (322) is adjustable.

6. A knee support assembly for a patient transfer machine according to claim 5, characterized in that, The first rod (321) is fitted with a first sleeve (323), and the second rod (322) is fitted with a second sleeve (324). The end of the second sleeve (324) away from the second rod (322) is fixedly connected to the first sleeve (323). The first rod (321) is provided with a plurality of first through holes, and the first sleeve (323) is provided with a second through hole that matches the first through holes. Bolts are inserted through the first through holes and the second through holes to achieve the connection and fixation between the first rod (321) and the first sleeve (323). The second rod (322) has multiple third through holes, and the second sleeve (324) has a fourth through hole that matches the third through holes. Bolts are inserted through the third through holes and the fourth through holes to connect and fix the second rod (322) and the second sleeve (324).

7. A knee rest assembly for a patient transfer machine according to claim 1, characterized in that, The end of the drive rod (36) is provided with a second through groove (361), and the second connecting rod (35) passes through the second through groove (361) and is fixed on the mounting base (33).

8. A knee rest assembly for a patient transfer machine according to claim 1, characterized in that, The power mechanism includes an electric push rod (41) and a push shaft (42). The electric push rod seat of the electric push rod (41) is located inside the support frame (20). The telescopic end of the electric push rod (41) is located above the electric push rod seat and connected to the push shaft (42). When the push shaft (42) moves upward under the drive of the electric push rod (41), it contacts the lower side of the end of the drive rod (36) away from the second connecting rod (35).

9. A knee rest assembly for a patient transfer machine according to claim 8, characterized in that, The support frame (20) is provided with a slide groove (26), and the push shaft (42) can slide in the slide groove (26). The lower part of the slide groove (26) is vertically set and the upper part is bent towards the side close to the drive rod (36). The electric push rod seat is hinged to the support frame (20), and the telescopic end of the electric push rod (41) is hinged to the push shaft (42).

10. A knee rest assembly for a patient transfer machine according to claim 9, characterized in that, There are multiple slide grooves (26), and each slide groove (26) is slidably provided with a push shaft (42).

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