Connecting rod structure for synchronously lifting and lowering operating table base, operating table base, and operating table

Abstract

The present invention discloses a connecting rod structure, an operating bed base, and an operating bed for synchronously lifting and lowering an operating bed base, comprising a driving source and a driving rod, both ends of the driving rod are connected with connecting rod parts, both ends of the connecting rod parts are provided with mounting seats, and the mounting seats are used to be mounted on the operating bed base; the driving source drives the driving rod to rotate along its axis, thereby driving two connecting rod parts to move synchronously, and finally driving four mounting seats to move synchronously; the connecting rod parts include a rotating pull plate, a first pull rod, a first caster lever, a second pull rod, and a second caster lever. The present invention utilizes an oil cylinder and a lever-connecting rod structure to achieve synchronous lifting and lowering of four wheels of an operating bed, and has a compact structure, low cost, good synchronization performance, and good stability.

Description

Technical Field

[0001] The invention relates to an operating table, in particular to a connecting rod structure for making an operating table base rise and fall synchronously, an operating table base and an operating table. Background Art

[0002] The base of the operating table needs a brake function to keep the operating table stable so that medical staff can perform surgery.

[0003] There are multiple design flaws in the braking system of traditional operating tables, which lead to many problems in actual use. First, the traditional hydraulic brake system is prone to shaking of the tabletop during braking due to the uneven extension speed of the hydraulic cylinder. This shaking not only affects the stability of the surgical operation, but may also cause the patient or installed accessories to fall due to the shaking, increasing the risk during the operation.

[0004] In addition, the contact point area of ​​the traditional brake system is insufficient, resulting in excessive pressure on the ground at each contact point, which can easily damage the ground or cause the operating table to slide on a smooth ground. When the hydraulic cylinder is extended to brake, the structural design of the hydraulic cylinder increases the thickness of the base, further affecting operation.

[0005] At the same time, according to the principle that three points determine a plane, when a traditional four-point brake operating table contacts the ground, the four contact points often cannot be located on the same plane at the same time because the ground is not completely flat. Therefore, it is necessary to install adjustable bolts on the two brake feet on the same side to adjust the length of the feet. This design is cumbersome to operate and is not convenient for actual use.

[0006] In addition, the prior art generally adopts the method of directly driving the brake foot column with hydraulic power. The weight of the operating table and the patient is borne by the hydraulic cylinder of the brake foot column for a long time, which inevitably leads to wear of the O-ring in the hydraulic cylinder and eventually causes oil leakage, reducing the reliability and service life of the system. Summary of the invention

[0007] In order to solve the defects of the above-mentioned prior art, the present invention provides a connecting rod structure, an operating table base, and an operating table for synchronously lifting and lowering the operating table base. The present invention utilizes an oil cylinder and a lever connecting rod structure to achieve synchronous lifting and lowering of the four wheels of the operating table, and has a compact structure, low cost, good synchronization performance, and good stability.

[0008] To achieve the above technical objectives, the present invention adopts the following technical solutions: a connecting rod structure for synchronously lifting and lowering an operating bed base, comprising a driving source and a driving rod, both ends of the driving rod are connected to connecting rod members, both ends of the connecting rod member are provided with mounting seats, and the mounting seats are used to be mounted on the operating bed base; the driving source drives the driving rod to rotate along its axis, thereby driving the two connecting rod members to move synchronously, and finally driving the four mounting seats to move synchronously;

[0009] The connecting rod member includes a rotating pull plate, a first pull rod, a first caster lever, a second pull rod, and a second caster lever; the rotating pull plate is fixedly installed on the driving rod, one end of the first pull rod is hinged to the rotating pull plate, and the other end is hinged to the first caster lever, and the first caster lever is connected to the mounting seat; one end of the second pull rod is hinged to the rotating pull plate, and the other end is hinged to the second caster lever, and the second caster lever is connected to the mounting seat; the middle parts of the first caster lever and the second caster lever are respectively hinged to the operating bed base.

[0010] The rotating pull plate is S-shaped and has a first tip, a second tip and a center portion. The first tip and the second tip are respectively provided with a first hinge hole and a second hinge hole. The center portion is provided with a center hole and is fixedly connected to the driving rod with a flat key. The first hinge hole is used for hinged connection to the first pull rod, and the second hinge hole is used for hinged connection to the second pull rod.

[0011] The second pull rod includes a second long rod and two second joints, both of which are internally threaded sleeves, and both ends of the second long rod are positive and negative threads, and the two second joints are fastened and connected by nuts; the two second joints are both provided with second hinged columns, one of which is hingedly connected to the second hinged hole, and the other second hinged column is hingedly connected to the second caster lever; the first pull rod includes a first long rod and two first joints, both of which are internally threaded sleeves, and both ends of the first long rod are positive and negative threads, and the two first joints are fastened and connected by nuts; the two first joints are both provided with first hinged columns, one of which is hingedly connected to the first hinged hole, and the other first hinged column is hingedly connected to the first caster lever.

[0012] The second caster lever is V-shaped, and a second fixed hinge hole is provided at the V-shaped corner, and is hinged to the second fixed hinge seat of the operating bed base by a second fixed hinge shaft; a second reinforcement ring is provided on the inner side of the V-shaped corner; a first connecting hole is provided at one tip of the V, and the first connecting hole is used to connect the mounting seat; a second connecting piece is provided at the other tip of the V, and the second connecting piece is provided with a second connecting hole, and the second connecting hole is used to connect the second hinge column of the second pull rod; the thickness of the second connecting piece is smaller than that of the second caster lever, and a second step surface is formed to match the second pull rod; The first caster lever is V-shaped, and a first fixed hinge hole is provided at the V-shaped corner, and is hinged to the first fixed hinge seat of the operating bed base by a first fixed hinge shaft; a first reinforcement ring is provided on the inner side of the V-shaped corner; a third connecting hole is provided at one tip of the V, and the third connecting hole is used to connect the mounting seat; a first connecting plate is provided at the other tip of the V, and a fourth connecting hole is provided in the first connecting plate, and the fourth connecting hole is used to connect the first hinge column of the first pull rod; the thickness of the first connecting plate is smaller than that of the first caster lever, and a first step surface is formed to match the first pull rod.

[0013] The driving source includes a fixed articulated seat, an oil cylinder, a bearing seat, and a pushing seat. The fixed articulated seat is fixed to the operating bed base, the fixed end of the oil cylinder is hinged to the fixed articulated seat, the pushing rod of the oil cylinder is hinged to one end of the pushing seat, and the other end of the pushing seat is hinged to the bearing seat, and the bearing seat is fixed to the operating bed base.

[0014] The mounting seat includes a seat plate; the seat plate is fastened with a fixing plate by screws, and the fixing plate is hingedly connected to the first connecting hole or the third connecting hole; the seat plate is also fixed with a wheel frame, and the wheel frame is equipped with a wheel.

[0015] A surgical bed base includes a connecting rod structure for synchronously lifting and lowering the surgical bed base, wherein four corners of the surgical bed base are provided with mounting platforms, the mounting platforms are provided with four mounting through holes, the four mounting through holes are provided with guide sleeves A, and the mounting platforms are provided with through holes for accommodating wheels; a mounting plate is provided in the middle of the surgical bed base, both ends of the mounting plate are provided with articulated seat mounting plates, one of the articulated seat mounting plates is provided with a driving rod articulated seat, and the other articulated seat mounting plate is provided with a bearing seat; the table top of the mounting platform is used for installing a second fixed articulated seat or a first fixed articulated seat.

[0016] A surgical bed comprises a surgical bed base.

[0017] In summary, the present invention has achieved the following technical effects:

[0018] The present invention utilizes one power source to achieve synchronous lifting of the four wheels of the operating table, thereby solving the problem of the operating table tilting. The structure cost of one power source is low and the occupied space is small.

[0019] The present invention sets multiple groups of levers and pull rod structures, utilizes the synchronization of the levers to achieve the synchronization of the four wheels, and the pull rods are stable as the transmission structure of the power source;

[0020] The present invention sets up a cylinder to control four wheels, which solves the problem of tabletop shaking during braking due to uneven extension speeds of multiple hydraulic cylinders in the previous technology; the present invention adopts a more effective base structure. When braking, the base of the operating table directly contacts the ground, providing a larger contact area, reducing the pressure on the ground, and improving the stability of the operating table. When the brakes are released, the four movable wheels will be pushed out synchronously to contact the ground, so that the base can be easily lifted off the ground, which not only ensures stability during braking, but also improves the convenience of operation, solving many problems existing in traditional designs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the base of the operating table;

[0022] Figure 2 yes Figure 1 A schematic diagram of the hidden base 1;

[0023] Figure 3 It is a connecting rod structure that enables the base of the operating table to rise and fall synchronously;

[0024] Figure 4 It is a schematic diagram of rotating the pull plate;

[0025] Figure 5 is a schematic diagram of the second tie rod;

[0026] Figure 6 is a side view of the cooperation between the rotating pull plate and the first pull rod and the second pull rod;

[0027] Figure 7 It is the schematic diagram of the second caster lever;

[0028] Figure 8 It is a schematic diagram of the driving source;

[0029] Fig. 9 It is a schematic diagram of the connection between the caster lever and the mounting base;

[0030] Fig.10 This is a schematic diagram of the operating table base. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] Example:

[0038] Figure 1This is a schematic diagram of the operating table base. Figure 2 yes Figure 1 Schematic diagram of hidden base 1, Figure 3 The invention relates to a connecting rod structure for synchronously raising and lowering the base of an operating bed, comprising a driving source 24 and a driving rod 22. Both ends of the driving rod 22 are connected with connecting rod members 21. Both ends of the connecting rod member 21 are provided with mounting seats 23. The mounting seats 23 are used to be mounted on the base 1 of the operating bed. The driving source 24 drives the driving rod 22 to rotate along its axis, thereby driving the two connecting rod members 21 to move synchronously, and finally driving the four mounting seats 23 to move synchronously.

[0039] The present invention uses a connecting rod 21 to achieve synchronous lifting of the mounting seats 23 at the four corners of the base, so that the wheels at the four positions can be lifted and lowered synchronously, thereby achieving synchronous braking and synchronous contact braking, and there will be no situation where the four corners are at different heights and cause tilting. The base of the operating table of the present invention is in direct contact with the ground, providing a larger contact area, reducing the pressure on the ground, and improving the stability of the operating table, and using the four wheels to synchronously leave the ground and touch the ground to achieve synchronous braking and synchronous contact braking.

[0040] like Figure 3 As shown, the connecting rod member 21 includes a rotating pull plate 210, a first pull rod 211, a first caster lever 212, a second pull rod 213, and a second caster lever 214; the rotating pull plate 210 is fixedly installed on the driving rod 22, one end of the first pull rod 211 is hinged to the rotating pull plate 210, and the other end is hinged to the first caster lever 212, and the first caster lever 212 is connected to the mounting seat 23; one end of the second pull rod 213 is hinged to the rotating pull plate 210, and the other end is hinged to the second caster lever 214, and the second caster lever 214 is connected to the mounting seat 23; the middle parts of the first caster lever 212 and the second caster lever 214 are respectively hinged to the operating bed base 1.

[0041] The present invention sets a driving source, cooperates with two groups of four pull rods and levers, so that the four mounting seats of the base are raised and lowered synchronously, so that the four wheels are raised and lowered synchronously, and the stability is better. The structure of the lever and the pull rod has low cost, good performance, convenient use and easy operation. The structure of one driving source saves more cost and space, and has better synchronization.

[0042] Figure 4210 is a schematic diagram of a rotating pull plate. The rotating pull plate 210 is S-shaped and has a first tip 2100, a second tip 2102 and a center portion 2104. The three are the main components of the S. The first tip 2100 and the second tip 2102 are respectively provided with a first hinge hole 2101 and a second hinge hole 2103. The center portion 2104 is provided with a center hole 2105 and is fixedly connected to the drive rod 22 with a flat key 2106, so that one drive rod 22 drives the two rotating pull plates 210 to move, and the movement synchronization of the two sides is good; the first hinge hole 2101 is used for hinged connection to the first pull rod 211, and the second hinge hole 2103 is used for hinged connection to the second pull rod 213. The upper and lower structures do not interfere with each other, and the rotating pull plate becomes a lever. The movement of the first pull rod and the second pull rod is realized at both ends of the lever, so that the same rotating pull plate can synchronously pull the two pull rods to move, and the synchronization is good.

[0043] Figure 5 Schematic diagram of the second tie rod. The first tie rod and the second tie rod have the same structure, only the length is different. Taking the second tie rod as an example, the second tie rod 213 includes a second long rod 2130 and two second joints 2131. Both second joints 2131 are internal threaded sleeves. Both ends of the second long rod 2130 are positive and negative threads, and nuts are used to fasten the two second joints 2131; both second joints 2131 are provided with second hinged columns 2132, one of which is hingedly connected to the second hinge hole 2103, and the other second hinged column 2132 is hingedly connected to the second caster lever 214. The second long rod 2130 of the present invention is a positive and negative thread tie rod with good stability and the joints at both ends are the same, so the mold opening cost is low. The second hinged column 2132 cooperates with the hinge hole of the rotating pull plate to realize the hinge function.

[0044] Correspondingly, the first pull rod 211 includes a first long rod and two first joints, both of which are internal thread sleeves, and both ends of the first long rod are positive and negative threads, and nuts are used to fasten the two first joints; both first joints are provided with first hinge columns, one of which is hingedly connected to the first hinge hole, and the other is hingedly connected to the first caster lever 212. The length of the first long rod is less than that of the second long rod, and the first caster lever 212 is connected to the first caster lever 212. Figure 2 , forming a structure with a short left side and a long right side, which is convenient for installing the remaining functional components.

[0045] Figure 6 It is a side view of the coordination of the rotating pull plate and the first pull rod and the second pull rod. It can be seen that the first pull rod is on the upper side and the second pull rod is on the lower side. The rotating pull plate acts as a lever, and the upper and lower sides move synchronously, so that the first pull rod and the second pull rod move synchronously.

[0046] Figure 72 is a schematic diagram of a second caster lever. The first caster lever and the second caster lever have the same structure. Taking the second caster lever as an example, the second caster lever 214 is V-shaped, and a second fixed hinge hole 2141 is provided at the V-shaped corner. The second fixed hinge shaft 237 is hinged to the second fixed hinge seat 236 of the operating table base 1 ( Fig. 9 2143 is provided on the inner side of the V-shaped corner to improve the strength of the lever; a first connecting hole 2140 is provided at one tip of the V-shaped, and the first connecting hole 2140 is used to connect the mounting seat 23; a second connecting piece 2142 is provided at the other tip of the V-shaped, and a second connecting hole 2143 is provided on the second connecting piece 2142, and the second connecting hole 2143 is used to connect the second hinge column 2132 of the second pull rod 213; the thickness of the second connecting piece 2142 is smaller than the second caster lever 214, and a second step surface 2144 is formed to match the second pull rod 213. In the present invention, one end of the V is used to connect the mounting seat, and the other end is used to connect the pull rod. The center of the V is a hinge axis. As a lever structure, the pull rod can be used to drive the mounting seat, and the driving is convenient.

[0047] The corresponding first caster lever 212 is V-shaped, and a first fixed hinge hole is opened at the V-shaped corner, and it is hinged to the first fixed hinge seat of the operating bed base 1 by using the first fixed hinge axis; a first reinforcement ring is arranged on the inner side of the V-shaped corner; a third connecting hole is opened at one tip of the V, and the third connecting hole is used to connect to the mounting seat 23; a first connecting plate is arranged at the other tip of the V, and the first connecting plate is opened with a fourth connecting hole, and the fourth connecting hole is used to connect to the first hinge column of the first pull rod 211; the thickness of the first connecting plate is smaller than that of the first caster lever 212, and a first step surface is formed to match the first pull rod 211.

[0048] like Figure 3 As shown, the present invention uses the first caster lever and the second caster lever as a lever structure, one end uses a pull rod as a power source for pushing and pulling, and the other end drives the mounting seat to rise and fall, so that the lever structure has better stability.

[0049] Figure 8 Schematic diagram of the driving source, the driving source 24 includes a fixed hinge seat 240, a cylinder 242, a bearing seat 243, and a push seat 244. The fixed hinge seat 240 is fixed to the operating bed base 1, the fixed end 241 of the cylinder 242 is hinged to the fixed hinge seat 240, the push rod of the cylinder 242 is hinged to one end of the push seat 244, the other end of the push seat 244 is hinged to the bearing seat 243, and the bearing seat 243 is fixed to the operating bed base 1. The present invention uses the cylinder as the power source, which has a simple structure, stable power drive, and low cost. The present invention uses the push seat 244 to drive the driving rod 22 to move, and sets a hinge structure at both ends of the cylinder to facilitate rotational movement.

[0050] Fig. 9Schematic diagram of the connection between the caster lever and the mounting seat. Taking the second caster lever as an example, the mounting seat 23 includes a seat plate 230, and the seat plate 230 is placed on the upper surface of the mounting table 11 of the operating table base 1 ( Fig.10 ); the seat plate 230 is fastened with a fixing plate 231 by means of a screw 232, and the fixing plate 231 is hingedly connected to the first connecting hole 2140 or the third connecting hole, so that the fixing plate 231 is hingedly connected to the first and second caster levers, thereby the first and second caster levers are hingedly connected to the seat plate 230; the seat plate 230 is also fixed with a wheel frame 234, and the wheel frame 234 is equipped with a wheel 235. The seat plate 230 is fixed with a guide rod B, and a guide sleeve A is installed in the mounting through hole 13 of the mounting platform 11 of the base 1, and the guide rod moves in the guide sleeve to provide a guiding function. When the left side of the caster lever is lifted, the right side is pressed down, and at the same time, the seat plate 230 is driven down to contact the ground, and the mounting seats at the four positions are synchronously lowered to contact the ground, so that the four wheels 235 are synchronously in contact with the ground, and the entire operating bed base is lifted off the ground to release the brake.

[0051] An operating table base comprises an operating table base 1 and a connecting rod structure. Fig.10 2 is a schematic diagram of an operating bed base, wherein mounting platforms 11 are provided at the four corners of the operating bed base 1, and the mounting platform 11 is provided with four mounting through holes 13, and the four mounting through holes 13 are provided with guide sleeves A for cooperating with guide rods B, and the mounting platform 11 is provided with through holes 12 for accommodating wheels 235; a mounting plate 14 is provided in the middle of the operating bed base 1, and hinge seat mounting plates 15 are provided at both ends of the mounting plate 14, wherein a driving rod hinge seat is installed on one of the hinge seat mounting plates 15, and a bearing seat 243 is installed on the other hinge seat mounting plate 15; a table top 16 of the mounting platform 11 is used for installing a second fixed hinge seat 236 or a first fixed hinge seat.

[0052] A surgical bed comprises a surgical bed base.

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A connecting rod structure for synchronously lifting and lowering the base of an operating table, characterized in that: The operating table comprises a driving source (24) and a driving rod (22), wherein both ends of the driving rod (22) are connected to connecting rods (21), and both ends of the connecting rod (21) are provided with mounting seats (23), and the mounting seats (23) are used to be mounted on the operating table base (1); the driving source (24) drives the driving rod (22) to rotate along its axis, thereby driving the two connecting rods (21) to move synchronously, and finally driving the four mounting seats (23) to move synchronously; The connecting rod member (21) comprises a rotating pull plate (210), a first pull rod (211), a first caster lever (212), a second pull rod (213), and a second caster lever (214); the rotating pull plate (210) is fixedly mounted on the driving rod (22); one end of the first pull rod (211) is hinged to the rotating pull plate (210), and the other end is hinged to the first caster lever (212); the first caster lever (212) is connected to the mounting seat (23); one end of the second pull rod (213) is hinged to the rotating pull plate (210), and the other end is hinged to the second caster lever (214); the second caster lever (214) is connected to the mounting seat (23); the middle parts of the first caster lever (212) and the second caster lever (214) are respectively hinged to the operating bed base (1).

2. The connecting rod structure for synchronously lifting and lowering the base of an operating table according to claim 1, characterized in that: The rotating pull plate (210) is S-shaped and has a first tip (2100), a second tip (2102), and a center portion (2104); the first tip (2100) and the second tip (2102) are respectively provided with a first hinge hole (2101) and a second hinge hole (2103); the center portion (2104) is provided with a center hole (2105) and is fixedly connected to the driving rod (22) with a flat key (2106); the first hinge hole (2101) is used for hinged connection to the first pull rod (211), and the second hinge hole (2103) is used for hinged connection to the second pull rod (213).

3. The connecting rod structure for synchronously lifting the base of the operating table according to claim 2 is characterized in that: The second pull rod (213) includes a second long rod (2130) and two second joints (2131), both of which are internal threaded sleeves, and both ends of the second long rod (2130) are threaded and connected by nuts; the two second joints (2131) are both provided with second hinged columns (2132), one of which is hingedly connected to the second hinge hole (2103), and the other second hinged column (2132) is hingedly connected to the second caster lever (214); the first pull rod (211) includes a first long rod and two first joints, both of which are internal threaded sleeves, and both ends of the first long rod are threaded and connected by nuts; the two first joints are both provided with first hinged columns, one of which is hingedly connected to the first hinge hole, and the other first hinged column is hingedly connected to the first caster lever (212).

4. The connecting rod structure for synchronously lifting the base of the operating table according to claim 2 is characterized in that: The second caster lever (214) is V-shaped, and a second fixed hinge hole (2141) is provided at the V-shaped corner, and is hinged to the second fixed hinge seat (236) of the operating bed base (1) by means of a second fixed hinge shaft (237); a second reinforcement ring (2145) is provided on the inner side of the V-shaped corner; a first connecting hole (2140) is provided at one tip of the V-shaped, and the first connecting hole (2140) is used to connect to the mounting seat (23); a second connecting plate (2142) is provided at the other tip of the V-shaped, and a second connecting hole (2143) is provided at the second connecting plate (2142), and the second connecting hole (2143) is used to connect to the second hinge column (2132) of the second pull rod (213); the thickness of the second connecting plate (2142) is less than that of the second caster lever (2144). The first caster lever (212) is V-shaped, and a first fixed hinge hole is provided at the V-shaped corner, and the first fixed hinge shaft is hinged to the first fixed hinge seat of the operating bed base (1); a first reinforcement ring is provided on the inner side of the V-shaped corner; a third connecting hole is provided at one tip of the V, and the third connecting hole is used to connect to the mounting seat (23); a first connecting plate is provided at the other tip of the V, and a fourth connecting hole is provided in the first connecting plate, and the fourth connecting hole is used to connect to the first hinge column of the first pull rod (211); the thickness of the first connecting plate is smaller than that of the first caster lever (212), and a first step surface is formed to match the first pull rod (211).

5. The connecting rod structure for synchronously lifting and lowering the operating table base according to claim 4 is characterized in that: The driving source (24) comprises a fixed articulated seat (240), an oil cylinder (242), a bearing seat (243), and a pushing seat (244); the fixed articulated seat (240) is fixed to the operating bed base (1); the fixed end (241) of the oil cylinder (242) is hinged to the fixed articulated seat (240); the pushing rod of the oil cylinder (242) is hinged to one end of the pushing seat (244); the other end of the pushing seat (244) is hinged to the bearing seat (243); and the bearing seat (243) is fixed to the operating bed base (1).

6. The connecting rod structure for synchronously lifting and lowering the operating table base according to claim 5, characterized in that: The mounting seat (23) comprises a seat plate (230), the seat plate (230) being fastened with a fixing plate (231) by means of screws (232), the fixing plate (231) being hingedly connected to the first connecting hole (2140) or the third connecting hole; the seat plate (230) is also fixed with a wheel frame (234), and the wheel frame (234) is equipped with a wheel (235).

7. An operating table base, characterized in that: The invention comprises an operating bed base (1) and a connecting rod structure for synchronously lifting the operating bed base as claimed in any one of claims 1 to 6, wherein the four corners of the operating bed base (1) are provided with mounting platforms (11), the mounting platform (11) is provided with four mounting through holes (13), the four mounting through holes (13) are provided with guide sleeves A, and the mounting platform (11) is provided with through holes (12) for accommodating wheels (235); the operating bed base (1) is provided with a mounting plate (14) in the middle, and both ends of the mounting plate (14) are provided with hinge seat mounting plates (15), one of the hinge seat mounting plates (15) is provided with a driving rod hinge seat, and the other hinge seat mounting plate (15) is provided with a bearing seat (243); the table top (16) of the mounting platform (11) is used to install a second fixed hinge seat (236) or a first fixed hinge seat.

8. An operating table, characterized in that: It comprises an operating table base as described in claim 7.

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