Push rod device and medical equipment using push rod device

Abstract

The utility model discloses a push rod device and medical equipment using the push rod device. The push rod device comprises a load connecting base, an electric push rod, a push rod connecting base assembly, a guide rod, an unlocking lead screw and an unlocking rod. The load connecting seat is connected with a load, one end of the electric push rod is connected with the load connecting seat, the other end of the electric push rod is connected with the push rod connecting seat assembly, the push rod connecting seat assembly is arranged on the guide rod in a sliding mode, the unlocking lead screw penetrates into a threaded hole in the push rod connecting seat assembly through threads on the surface, and the unlocking rod is connected with the unlocking lead screw. The unlocking rod drives the push rod connecting base assembly connected with the electric push rod to move axially under the action of external rotating force. According to the scheme, under the condition that the electric push rod breaks down, the load can still be driven to move axially through external rotating force based on the transmission relation between the assemblies, and the risk caused by the fault of the electric push rod is effectively avoided.

Description

TECHNICAL FIELD

[0001] The present specification relates to the technical field of mechanical equipment, and in particular to a push rod device and a medical device using the push rod device. BACKGROUND

[0002] The electric push rod belongs to the field of mechatronic parts and accessories, and is mainly used for converting the rotary motion of an electric motor into linear reciprocating motion of a push rod, so as to drive various carriers to complete specified actions. The electric push rod has the advantages of small size, high cost performance, and easy maintenance, and is therefore widely used in medical, furniture, power, machinery, metallurgy, transportation, mining, petroleum, chemical industry, hoisting, transportation, construction, and grain and feed processing industries.

[0003] However, in actual application in a medical application scenario, the electric push rod may fail due to some internal and external factors. In this case, the electric push rod becomes a non-expandable rigid body, making it difficult to achieve its original function, and even causing safety hazards.

[0004] Therefore, how to ensure that the electric push rod can still control the carrier in the case of failure is a problem to be solved. CONTENT OF THE INVENTION

[0005] The present specification provides a push rod device and a medical device using the push rod device to partially solve the above problems existing in the prior art in a medical scenario.

[0006] The present specification adopts the following technical solutions:

[0007] The present specification provides a push rod device, which comprises a load connecting seat 1, an electric push rod 2, a push rod connecting seat assembly 3, a guide rod 4, an unlocking lead screw 5, and an unlocking rod 6.

[0008] The load connecting seat 1 is connected with a load, one end of the electric push rod 2 is connected with the load connecting seat 1, and the other end is connected with the push rod connecting seat assembly 3. The push rod connecting seat assembly 3 is slidably arranged on the guide rod 4. The unlocking lead screw 5 is threaded into a threaded hole in the interior of the push rod connecting seat assembly 3 through the threads on the surface. The unlocking rod 6 is connected with the unlocking lead screw 5.

[0009] The unlocking rod 6 drives the push rod connecting seat assembly 3 connected with the electric push rod 2 to move axially under the action of an external rotary force.

[0010] Optionally, the push rod device further comprises a front support seat 7 and a rear support seat 8.

[0011] The two ends of the guide rod 4 are fixed on the front support seat 7 and the rear support seat 8, respectively.

[0012] Optionally, a bearing assembly is arranged on the rear support seat 8.

[0013] One end of the unlocking screw 5 passes through the bearing assembly, and the other end is rotatably arranged in the mounting hole of the front support seat 7.

[0014] Optionally, one end of the electric push rod 2 is hinged to the hinge shaft of the load connecting seat 1 through a hinge hole, and the other end is hinged to the hinge shaft of the push rod connecting seat assembly 3 through a hinge hole.

[0015] Optionally, the unlocking screw 5 is connected with the unlocking rod 6 through a shaft coupling.

[0016] Optionally, the push rod device further comprises an unlocking support seat 9.

[0017] The unlocking support seat 9 is arranged at a specified position at the end of the unlocking rod 6.

[0018] Optionally, the push rod device further comprises an indicating rod 10, one end of which is fixed on the push rod connecting seat, and the other end passes through an indicating hole arranged on the unlocking support seat 9.

[0019] The present specification provides a medical device using a push rod device, wherein the medical device is connected with the push rod device.

[0020] The push rod device comprises a load connecting seat (1), an electric push rod (2), a push rod connecting seat assembly (3), a guide rod (4), an unlocking screw (5), and an unlocking rod (6).

[0021] The load connecting seat (1) is connected with the medical device, one end of the electric push rod (2) is connected with the load connecting seat (1), and the other end is connected with the push rod connecting seat assembly (3), the push rod connecting seat assembly (3) is slidably arranged on the guide rod (4), the unlocking screw (5) passes through the thread hole in the inside of the push rod connecting seat assembly (3) through the thread on the surface, and the unlocking rod (6) is connected with the unlocking screw (5).

[0022] Under the action of external rotary force, the push rod connecting seat assembly (3) connected with the electric push rod (2) is axially moved, so that the medical device is axially moved with the electric push rod (2) connected with the push rod connecting seat assembly (3).

[0023] In the push rod device provided in the present specification, the push rod device comprises a load connecting seat, an electric push rod, a push rod connecting seat assembly, a guide rod, an unlocking screw and an unlocking rod; the load connecting seat is connected with a load, one end of the electric push rod is connected with the load connecting seat, the other end is connected with the push rod connecting seat assembly, the push rod connecting seat assembly is slidably arranged on the guide rod, the unlocking screw is screwed into the threaded hole in the inside of the push rod connecting seat assembly through the thread on the surface, and the unlocking rod is connected with the unlocking screw; the unlocking rod drives the push rod connecting seat assembly connected with the electric push rod to move axially under the action of external rotary force.

[0024] As can be seen from the above, in the case that the electric push rod cannot work normally, the present scheme can still drive the electric push rod and the load on the load connecting seat to move axially through the axial movement of the push rod connecting seat assembly based on the transmission relationship between the push rod connecting seat assembly, the electric push rod, the load connecting seat, the unlocking screw and the unlocking rod, and convert the rotary force received by the unlocking rod into the axial force of the push rod connecting seat assembly through the unlocking screw, thereby ensuring that the electric push rod can still control the carrier in the case of failure, and further avoiding the loss and risk caused by the damage of the electric push rod. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings used to provide further understanding of the present specification, form a part of the present specification, the illustrative embodiments of the present specification and the description thereof are used to explain the present specification, and do not constitute improper limitation on the present specification. In the drawings:

[0026] Figure 1 It is an exploded structural schematic view of the push rod device provided in the present specification;

[0027] Figure 2 It is a whole structural schematic view of the push rod device provided in the present specification. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present specification clearer, the technical scheme of the present specification will be described clearly and completely in combination with the specific embodiments of the present specification and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present specification, not all the embodiments. Based on the embodiments in the present specification, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present specification.

[0029] The technical scheme provided by each embodiment of the present specification will be described in detail in combination with the drawings as follows.

[0030] Figure 1As shown in the exploded structural schematic diagram of a push rod device provided in the present specification, the push rod device comprises a load connecting seat 1, an electric push rod 2, a push rod connecting seat assembly 3, a guide rod 4, an unlocking screw 5 and an unlocking rod 6.

[0031] One end of the electric push rod 2 is connected with the load connecting seat 1, and the other end is connected with the push rod connecting seat assembly 3, and the push rod connecting seat assembly 3 is slidably arranged on the guide rod 4.

[0032] In an embodiment provided in the present specification, one end of the electric push rod 2 can be hinged with the hinge shaft of the load connecting seat 1 through a hinge hole, and the other end can be hinged with the hinge shaft of the push rod connecting seat assembly 3 through a hinge hole, so that the electric push rod 2 can be rotated by using the hinge shaft of the load connecting seat 1 or the hinge shaft of the push rod connecting seat assembly 3.

[0033] Of course, the two ends of the electric push rod 2 can also be directly fixed on the load connecting seat 1 and the push rod connecting seat assembly 3.

[0034] The push rod connecting seat assembly 3 is slidably arranged on two guide rods 4.

[0035] The surface of the unlocking screw 5 is provided with threads, and the inside of the push rod connecting seat assembly 3 is provided with a threaded hole, and the threads of the two are matched, so that the unlocking screw 5 can pass into the threaded hole inside the push rod connecting seat assembly 3 through the threads on the surface, thereby realizing the threaded connection of the two.

[0036] The unlocking rod 6 is connected with the unlocking screw 5, and in an embodiment provided in the present specification, the unlocking screw 5 and the unlocking rod 6 can be connected through a shaft coupling.

[0037] Of course, in actual application, the unlocking screw 5 and the unlocking rod 6 can also be connected through other modes such as threaded connection, sheath connection, key connection, welding connection and expansion sleeve connection, and the present specification does not make specific limitation on this.

[0038] The inside of the electric push rod 2 is provided with a motor and a retractable push rod, and when the electric push rod 2 does not appear abnormal, the motor and the push rod can normally work, and in this case, after receiving a control instruction (including an extension instruction and a retraction instruction), the electric push rod 2 can drive the push rod to perform extension and retraction movement through the internal motor according to the control instruction, thereby driving the load connected on the load connecting seat 1 to move axially.

[0039] In actual application, the load connected on the load connecting seat 1 can include industrial equipment (such as conveyor belt, mechanical arm, etc.), medical equipment (such as hospital bed, operating table, etc.), driving equipment and its parts (such as vehicle window, case cover, etc.) and smart home equipment, and the present specification does not make specific limitation on this.

[0040] When the electric push rod 2 is abnormal, the internal motor and the push rod cannot work normally, at this time the unlocking rod 6 can be rotated under the action of external rotating force, and the unlocking screw 5 is driven to rotate, at this time the push rod connecting seat assembly 3 is driven to move along the guide rod 4 under the action of the thread driving force between the unlocking screw 5, and then the electric push rod 2 is driven to move as a whole, because the load connecting seat 1 is fixed with the electric push rod 2, so the movement of the electric push rod 2 can further drive the load connected to the load connecting seat 1 to move axially (i.e. forward and backward along the axial direction).

[0041] Among them, the end of the unlocking rod 6 is provided with an unlocking control area, which can be a stud, nut or screw of any shape, of course, the outer surface can also be provided with a corresponding thread, so that the unlocking control area can be rotated under the action of external rotating force.

[0042] In practical application, the above external rotating force can be driven by an external motor lock, of course, it can also be generated by manually controlling tools such as wrench, screwdriver, etc.

[0043] Further, the present specification also provides a schematic diagram of the overall structure of the push rod device, as shown in Figure 2 .

[0044] Figure 2 The schematic diagram of the overall structure of the push rod device provided in the present specification.

[0045] From Figure 2 it can be seen that even in the case of failure of the electric push rod 2, the push rod device can still control the load to move forward or backward under the action of external rotating force through the transmission relationship between the unlocking rod 6, the unlocking screw 5, the push rod connecting seat assembly 3 and the load connecting seat 1.

[0046] In addition to the above structure, the push rod device provided by the present specification can also have a front support seat 7, a rear support seat 8, an unlocking support seat 9 and an indicating rod 10.

[0047] The two ends of the guide rod 4 are respectively fixed on the front support seat 7 and the rear support seat 8, and the front support seat 7 and the rear support seat 8 are respectively provided with mounting holes, one end of the unlocking screw 5 passes through the bearing assembly, and the other end is rotatably arranged in the mounting hole of the front support seat 7.

[0048] The unlocking support seat 9 is arranged at a specified position at the end of the unlocking rod 6, for supporting the unlocking rod 6. Among them, the specified position can be set according to the actual situation, but cannot be located in the above unlocking control area and can support the guide rod 4 not to be inclined, so as to avoid affecting the operation of the unlocking rod 6.

[0049] One end of the indicating rod 10 is fixed on the push rod connecting seat, and the other end passes through the indicating hole provided on the unlocking support seat 9.

[0050] When the push rod connecting seat assembly 3 moves along the guide rod 4 under the action of the screw driving force between the push rod connecting seat assembly 3 and the unlocking screw 5, the length of the indicating rod 10 extending out of the indicating hole changes with the distance and direction of the movement of the push rod connecting seat assembly 3, that is, when the push rod connecting seat assembly 3 moves forward, the indicating rod 10 also moves in the same direction, and the length of the indicating rod 10 extending out of the indicating hole becomes shorter; when the push rod connecting seat assembly 3 moves backward, the indicating rod 10 also moves in the same direction, and the length of the indicating rod 10 extending out of the indicating hole becomes longer.

[0051] In this way, the distance of the movement of the push rod connecting seat assembly 3 can be determined by the length of the indicating rod 10 extending out of the indicating hole, thereby providing an indication of the position of the push rod connecting seat assembly 3.

[0052] It should be further pointed out that the above load connecting seat 1, front support seat 7, rear support seat 8 and unlocking support seat 9 can be fixed on an external plane, and the fixing methods can include but are not limited to welding, pasting, riveting and bolt coupling, etc.

[0053] Further, the present specification also provides a medical device using the push rod device, which can be connected with the push rod device as shown and specifically connected on the load connecting seat of the push rod device. Figure 1

[0054] When the unlocking rod 6 is subjected to an external rotating force, the unlocking screw 5 can be driven to rotate under the action of the external rotating force, at this time, the push rod connecting seat assembly 3 moves along the guide rod 4 under the action of the screw driving force between the push rod connecting seat assembly 3 and the unlocking screw 5, and further drives the electric push rod 2 to move as a whole, since the load connecting seat 1 is fixed with the electric push rod 2, the movement of the electric push rod 2 can further drive the medical device connected on the load connecting seat 1 to move axially.

[0055] In actual application, the medical device can include diagnostic equipment (such as CT scanners, magnetic resonance imaging instruments), surgical robots and their mechanical arms, rehabilitation equipment (such as rehabilitation robots, electric wheelchairs, orthoses, rehabilitation training instruments) and medical vehicles, etc., which are not limited in the present specification.

[0056] From the above, it can be seen that the push rod device provided by the present specification can still realize its function by operating the unlocking rod in the case of failure due to various reasons, ensuring the emergency use in crisis situations and further avoiding the loss and risk caused by such situations.

[0057] ​It should also be noted that the terms "comprising," "including," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0058] Each of the embodiments in the present specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each of the embodiments focuses on the difference from other embodiments. In particular, for the system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the part of the method embodiments.

[0059] The above only describes the embodiments of the present specification and is not intended to limit the present specification. The present specification can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present specification shall be included in the scope of claims of the present specification.

Claims

1. A push rod device, characterized in that, The push rod device includes: a load connecting seat (1), an electric push rod (2), a push rod connecting seat assembly (3), a guide rod (4), an unlocking screw (5), and an unlocking rod (6); The load connecting seat (1) is connected to the load. One end of the electric push rod (2) is connected to the load connecting seat (1), and the other end is connected to the push rod connecting seat assembly (3). The push rod connecting seat assembly (3) is slidably mounted on the guide rod (4). The unlocking screw (5) passes through the thread on its surface into the threaded hole inside the push rod connecting seat assembly (3). The unlocking rod (6) is connected to the unlocking screw (5). The unlocking rod (6) drives the push rod connecting seat assembly (3) connected to the electric push rod (2) to move axially under the action of external rotational force.

2. The push rod device as described in claim 1, characterized in that, The push rod device further includes: a front support seat (7) and a rear support seat (8); The two ends of the guide rod (4) are fixed to the front support (7) and the rear support (8), respectively.

3. The push rod device as described in claim 2, characterized in that, A bearing assembly is provided on the rear support base (8); One end of the unlocking screw (5) passes through the bearing assembly, and the other end is rotatably disposed in the mounting hole of the front support seat (7).

4. The push rod device as described in claim 1, characterized in that, One end of the electric push rod (2) is hinged to the hinge shaft of the load connecting seat (1) through a hinge hole, and the other end is hinged to the hinge shaft of the push rod connecting seat assembly (3) through a hinge hole.

5. The push rod device as described in claim 1, characterized in that, The unlocking screw (5) and the unlocking rod (6) are connected by a coupling.

6. The push rod device as described in claim 1, characterized in that, The push rod device further includes: an unlocking support base (9); The unlocking support (9) is located at a designated position at the end of the unlocking rod (6).

7. The push rod device as described in claim 6, characterized in that, The push rod device further includes an indicator rod (10), one end of which is fixed on the push rod connecting seat, and the other end passes through the indicator hole provided on the unlocking support seat (9).

8. A medical device using a push rod device, characterized in that, The medical device is connected to the push rod device; The push rod device includes: a load connecting seat (1), an electric push rod (2), a push rod connecting seat assembly (3), a guide rod (4), an unlocking screw (5), and an unlocking rod (6); The load connector (1) is connected to the medical device. One end of the electric push rod (2) is connected to the load connector (1), and the other end is connected to the push rod connector assembly (3). The push rod connector assembly (3) is slidably mounted on the guide rod (4). The unlocking screw (5) passes through the thread on its surface into the threaded hole inside the push rod connector assembly (3). The unlocking rod (6) is connected to the unlocking screw (5). The unlocking rod (6) drives the push rod connecting seat assembly (3) connected to the electric push rod (2) to move axially under the action of external rotational force, so that the medical device moves axially with the electric push rod (2) connected to the push rod connecting seat assembly (3).

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