Cleaning arms and analytical testing equipment

Abstract

The present invention relates to the field of analytical testing instruments, and in particular, to a cleaning arm and analytical testing equipment. The cleaning arm comprises a bracket assembly, a transmission assembly, a needle assembly and a drive assembly. The transmission assembly comprises at least one linear guide rail. The linear guide rail is connected to the bracket assembly. The needle assembly comprises a liquid injection needle and a liquid aspiration needle, and the needle assembly is fixedly connected to the transmission assembly. The drive assembly is transmission-connected to the transmission assembly. The drive assembly is used to drive the transmission assembly to drive the liquid injection needle and the liquid aspiration needle to move along at least one linear guide rail. When the cleaning arm drive assembly drives the transmission assembly to drive the needle assembly to move, the liquid injection needle and the liquid aspiration needle can move simultaneously. Compared with the prior art, in which liquid aspiration and liquid injection are respectively realized by two motion mechanisms to realize vertical movement, and the liquid aspiration and liquid injection movements are independent of each other, the cleaning arm of the present invention reduces the volume of the entire equipment, shortens the time for executing the liquid aspiration and liquid injection actions, and greatly improves work efficiency.

Description

Technical Field

[0001] The present invention relates to the field of analytical testing instruments, and in particular to a cleaning arm and analytical testing equipment. Background Art

[0002] There are two main types of cleaning arms in analytical and testing instruments in the prior art:

[0003] A cleaning arm structure, wherein a liquid suction needle and a liquid injection needle in the cleaning needle are separated, and liquid suction and liquid injection are respectively realized in vertical motion by a motion mechanism, and the motions are independent of each other.

[0004] This cleaning arm structure, because each needle moves independently, causes the instrument to be too large, each action wastes a lot of time, and the work efficiency is low.

[0005] In another cleaning arm structure, the liquid aspiration needle and the liquid injection needle in the cleaning needle are combined, but often multiple cleaning needles move vertically at the same time to achieve the cleaning function, and the movement of each cleaning needle is not independent of each other.

[0006] This cleaning robot arm structure can clean multiple holes at the same time, but it has high requirements for software programming, cannot avoid holes that do not need to be cleaned, and has low work efficiency. Summary of the invention

[0007] The object of the present invention is to provide a cleaning arm with compact structure and high working efficiency.

[0008] Another object of the present invention is to provide an analysis and testing device, which has a compact structure, high reliability and high working efficiency.

[0009] In order to achieve the above purpose, the technical solution adopted by the embodiment of the present invention is as follows:

[0010] A cleaning arm comprises: a bracket assembly; a transmission assembly; the transmission assembly comprises at least one linear guide rail; at least one linear guide rail is connected to the bracket assembly; a needle assembly; the needle assembly comprises a liquid injection needle and a liquid aspiration needle; the needle assembly is fixedly connected to the transmission assembly; and a driving assembly; the driving assembly is transmission-connected to the transmission assembly; the driving assembly is configured to drive the transmission assembly to drive the liquid injection needle and the liquid aspiration needle to move along at least one linear guide rail.

[0011] In a preferred embodiment of the present invention, the driving assembly includes a motor and a synchronous pulley assembly; the motor is transmission-connected to the synchronous pulley assembly; and the synchronous pulley assembly is arranged along the direction of at least one linear guide rail.

[0012] In a preferred embodiment of the present invention, the transmission assembly also includes a slider and a transmission shaft; the transmission shaft is connected to the slider; the needle assembly is fixedly connected to the transmission shaft; the transmission shaft extends to the bracket assembly, and the needle assembly is located above the bracket assembly; the slider is slidably connected to at least one linear guide rail, and the synchronous pulley assembly is connected to the slider.

[0013] In a preferred embodiment of the present invention, the support assembly includes a base plate, a support seat and a support block; the support seat is connected between the base plate and the support block; and at least one linear guide rail is disposed on the support seat.

[0014] In a preferred embodiment of the present invention, the linear guide includes a first linear guide and a second linear guide; the first linear guide and the second linear guide are respectively arranged on two opposite sides of the support seat.

[0015] In a preferred embodiment of the present invention, the motor includes a first motor and a second motor; the synchronous pulley assembly includes a first synchronous pulley assembly and a second synchronous pulley assembly; the first motor is transmission-connected to the first synchronous pulley assembly; the first synchronous pulley assembly is arranged along the direction of the first linear guide rail; the second motor is transmission-connected to the second synchronous pulley assembly; the second synchronous pulley assembly is arranged along the direction of the second linear guide rail.

[0016] In a preferred embodiment of the present invention, the slider includes a first slider and a second slider, the first slider is fixedly connected to the first synchronous pulley assembly; the second slider is fixedly connected to the second synchronous pulley assembly; the first slider is slidably connected to the first linear guide rail, and the second slider is slidably connected to the second linear guide rail.

[0017] In a preferred embodiment of the present invention, the transmission shaft includes a first transmission shaft and a second transmission shaft; the first slider is fixedly connected to the first transmission shaft; and the second slider is fixedly connected to the second transmission shaft.

[0018] In a preferred embodiment of the present invention, the needle assembly includes a support arm; a mounting portion is provided at the free end of the support arm, and the injection needle and the aspiration needle are both disposed in the mounting portion.

[0019] An analysis and testing device comprises the above-mentioned cleaning arm and a device body; the cleaning arm is arranged on one side of the device body.

[0020] The beneficial effects of the present invention are:

[0021] The present invention provides a cleaning arm, comprising: a bracket assembly, a transmission assembly, a needle assembly and a drive assembly. Among them, the transmission assembly includes at least one linear guide rail; at least one linear guide rail is connected to the bracket assembly. The needle assembly includes a liquid injection needle and a liquid suction needle, and the needle assembly is fixedly connected to the transmission assembly. The drive assembly is transmission-connected to the transmission assembly. The drive assembly is configured to drive the transmission assembly to drive the liquid injection needle and the liquid suction needle to move along at least one linear guide rail. When the cleaning arm drive assembly drives the transmission assembly to drive the needle assembly to move, the liquid injection needle and the liquid suction needle can move at the same time. Compared with the prior art, in which the liquid suction and liquid injection are realized by two motion mechanisms respectively to realize vertical movement, and the liquid suction and liquid injection movements are independent of each other, the cleaning arm of the present invention greatly reduces the volume of the entire equipment, shortens the time for executing the liquid suction and liquid injection actions, and greatly improves work efficiency.

[0022] The present invention provides an analysis and testing device, which includes the cleaning arm as described above; and a device body; the cleaning arm is arranged on one side of the device body. When each needle assembly of the analysis and testing device performs cleaning movement, they are independent of each other and do not interfere with each other, so that the holes that need to be cleaned can be cleaned in a targeted manner, solving the problem that the holes that do not need to be cleaned cannot be avoided in the prior art, and greatly improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of the structure of a cleaning arm provided in the first embodiment of the present invention;

[0025] Figure 2 A schematic structural diagram of a bracket assembly of a cleaning arm provided in a first embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the structure of a transmission assembly of a cleaning arm provided in a first embodiment of the present invention;

[0027] Figure 4 A schematic structural diagram of a needle assembly of a cleaning arm provided in a first embodiment of the present invention;

[0028] Figure 5 A schematic structural diagram of a driving assembly of a cleaning arm provided in a first embodiment of the present invention.

[0029] Icons: 100-cleaning arm; 110-bracket assembly; 111-bottom plate; 112-support seat; 113-support block; 114-first linear guide; 115-second linear guide; 116-limiting block; 120-transmission assembly; 121-first slider; 122-second slider; 123-first transmission shaft; 124-second transmission shaft; 125-slider seat; 126-transmission block; 130-needle assembly; 131-injection needle; 13 2-pipette needle; 133-first needle assembly; 134-second needle assembly; 135-support arm; 136-installation portion; 137-pipette needle head; 138-cleaning needle fixing block; 139-cleaning needle limiting block; 140-driving assembly; 141-first motor; 142-second motor; 143-first synchronous pulley assembly; 144-second synchronous pulley assembly; 145-driven wheel seat; 146-belt transmission block; 147-belt pressure block. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of 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.

[0035] First embodiment

[0036] Please refer to Figure 1-Figure 5 This embodiment provides a cleaning arm 100 , which includes a support assembly 110 , a transmission assembly 120 , a needle assembly 130 and a drive assembly 140 .

[0037] Further, the support assembly 110 includes a bottom plate 111, a support seat 112 and a support block 113. Further, the support seat 112 is connected between the bottom plate 111 and the support block 113. Thus, a support structure of the entire cleaning arm 100 is formed. By arranging the support block 113 on the upper part of the support assembly 110, the stability of the entire cleaning arm 100 is further ensured, and shaking caused by the cantilever is avoided.

[0038] Furthermore, the transmission assembly 120 includes at least one linear guide rail.

[0039] Specifically, in this embodiment, the transmission assembly 120 includes two linear guide rails, namely a first linear guide rail 114 and a second linear guide rail 115 .

[0040] Furthermore, the support base 112 has a first side and an opposite second side. The first linear guide rail 114 is disposed on the first side of the support base 112, and the second linear guide rail 115 is disposed on the second side of the support base 112. Thus, when the transmission assembly 120 moves, the needle assembly 130 can be driven to move up and down, thereby completing the operation of injecting and aspirating liquid.

[0041] Furthermore, two limit blocks 116 are provided at the bottom of the support seat 112 and are respectively located at the bottom of the first linear guide rail 114 and the second linear guide rail 115 , thereby effectively ensuring that the aforementioned transmission assembly 120 slides along the first linear guide rail 114 and the second linear guide rail 115 .

[0042] Furthermore, a through hole is provided on the support block 113 , and the transmission assembly 120 passes through the through hole and extends onto the support block 113 .

[0043] Furthermore, the needle assembly 130 is connected to the transmission assembly 120. The needle assembly 130 is located on the support block 113, so that when the transmission assembly 120 moves along the linear guide rail, the needle assembly 130 can be driven to move up and down relative to the support block 113, thereby performing the operations of washing and pumping liquid.

[0044] Further optionally, a photoelectric switch may be provided on the support block 113 to control the reliability of the movement of the transmission assembly 120 .

[0045] Furthermore, the driving assembly 140 includes a motor and a synchronous pulley assembly; the motor is transmission-connected to the synchronous pulley assembly; and the synchronous pulley assembly is arranged along the direction of the linear guide rail.

[0046] Specifically, in this embodiment, the motor includes a first motor 141 and a second motor 142. The synchronous pulley assembly includes a first synchronous pulley assembly 143 and a second synchronous pulley assembly 144. The first motor 141 is connected to the first synchronous pulley assembly 143. The second motor 142 is connected to the second synchronous pulley assembly 144.

[0047] Furthermore, the first synchronous pulley assembly 143 is disposed along the direction of the first linear guide rail 114 ; and the second synchronous pulley assembly 144 is disposed along the direction of the second linear guide rail 115 .

[0048] Furthermore, the first motor 141 and the second motor 142 are fixedly connected side by side to one end of the support base 112 close to the bottom plate 111 through a mounting plate, and the first motor 141 and the second motor 142 are respectively located on two opposite sides of the support base 112 .

[0049] Further, the first synchronous pulley assembly 143 and the second synchronous pulley assembly 144 are arranged on the same side of the first motor 141 and the second motor 142 , so that the first synchronous pulley assembly 143 and the second synchronous pulley assembly 144 are also arranged side by side.

[0050] Furthermore, the driven wheels of the first synchronous pulley assembly 143 and the second synchronous pulley assembly 144 are installed on one side of the support block 113 through a driven wheel seat 145. Thus, both belts can perform linear motion along the extension direction of the linear guide rail.

[0051] Furthermore, a belt transmission block 146 and a belt pressing block 147 are provided on both belts for connecting the transmission assembly 120. Thus, the transmission assembly 120 and the belt can be driven to move synchronously, thereby driving the needle assembly 130 to move, and realizing the operation of pumping and aspirating liquid.

[0052] Furthermore, the transmission assembly 120 also includes a slider and a transmission shaft. The transmission shaft is connected to the slider; the needle assembly 130 is fixedly connected to the transmission shaft; the transmission shaft extends to the bracket assembly 110, and the needle assembly 130 is located on the bracket assembly 110; the slider is slidably connected to the linear guide rail, and the synchronous pulley assembly is connected to the slider.

[0053] Specifically, in this embodiment, the slider includes a first slider 121 and a second slider 122. The first slider 121 is fixedly connected to the first synchronous pulley assembly 143; the second slider 122 is fixedly connected to the second synchronous pulley assembly 144; the first slider 121 is slidably connected to the first linear guide 114, and the second slider 122 is slidably connected to the second linear guide 115.

[0054] Furthermore, the transmission shaft includes a first transmission shaft 123 and a second transmission shaft 124 ; the first slider 121 is fixedly connected to the first transmission shaft 123 ; and the second slider 122 is fixedly connected to the second transmission shaft 124 .

[0055] Furthermore, the first slider 121 is slidably connected to the first linear guide 114, and a slider seat 125 is also connected to the first slider 121. A transmission block 126 is fixedly connected to the slider seat 125, and the first transmission shaft 123 is fixedly connected to the transmission block 126. Therefore, when the first slider 121 slides along the first linear guide 114, it can drive the first transmission shaft 123 to move, and then drive a needle assembly 130 to move, thereby realizing the operations of injecting and aspirating liquid.

[0056] Similarly, the second slider 122 is slidably connected to the second linear guide 115, and a slider seat 125 is also connected to the second slider 122. A transmission block 126 is fixedly connected to the slider seat 125, and the second transmission shaft 124 is fixedly connected to the transmission block 126. Therefore, when the second slider 122 slides along the second linear guide 115, it can drive the second transmission shaft 124 to move, and then drive a needle assembly 130 to move, thereby realizing the operations of injecting and aspirating liquid.

[0057] Furthermore, the needle assembly 130 includes a liquid injection needle 131 and a liquid suction needle 132 ; the needle assembly 130 is fixedly connected to the transmission assembly 120 .

[0058] Further, in this embodiment, the cleaning arm 100 includes two needle assemblies 130, namely a first needle assembly 133 and a second needle assembly 134. The first needle assembly 133 is fixedly connected to the first linear guide 114, and the second needle assembly 134 is transmission-connected to the second linear guide 115. Therefore, when the first driving mechanism drives the first linear guide 114 to move, the first needle assembly 133 can be driven to move; when the second driving mechanism drives the second linear guide 115 to move, the second needle assembly 134 can be driven to move.

[0059] Further, the first needle assembly 133 also includes a support arm 135. A mounting portion 136 is provided at the free end of the support arm 135, and the injection needle 131 and the aspiration needle 132 are both provided in the mounting portion 136. Specifically, one end of the injection needle 131 is located above the mounting portion 136, and the other end passes through the bottom of the mounting portion 136. The aspiration needle head 137 is located above the mounting portion 136, and the aspiration needle 132 passes through the bottom of the mounting portion 136. Further, a mounting hole is provided at the mounting portion 136, and the injection needle 131 and the aspiration needle 132 both pass through the mounting hole. A cleaning needle fixing block 138 and a cleaning needle limiting block 139 are also provided in the mounting portion 136, so that the injection needle 131 and the aspiration needle 132 are stably installed.

[0060] When the first driving mechanism drives the first linear guide 114 to drive the first needle assembly 133 to move, the injection needle 131 and the suction needle 132 of the first needle assembly 133 can move simultaneously, so that the two operations of suction and injection are not independent of each other, and only one driving mechanism is needed to realize the two operations of suction and injection. Compared with the prior art, in which the suction and injection are realized by two motion mechanisms respectively and the suction and injection movements are independent of each other, the cleaning arm 100 provided in this embodiment greatly reduces the volume of the entire device, shortens the time for executing the suction and injection actions, and greatly improves the working efficiency.

[0061] Similarly, the second needle assembly 134 also includes a support arm 135. A mounting portion 136 is provided at the free end of the support arm 135, and the injection needle 131 and the aspiration needle 132 are both provided in the mounting portion 136. Specifically, one end of the injection needle 131 is located above the mounting portion 136, and the other end passes through the bottom of the mounting portion 136. The aspiration needle head 137 is located above the mounting portion 136, and the aspiration needle 132 passes through the bottom of the mounting portion 136. Furthermore, a mounting hole is provided at the mounting portion 136, and the injection needle 131 and the aspiration needle 132 both pass through the mounting hole. A cleaning needle fixing block 138 and a cleaning needle limiting block 139 are also provided in the mounting portion 136, so that the injection needle 131 and the aspiration needle 132 are stably installed.

[0062] The second needle assembly 134 can also realize the two operations of aspirating and injecting liquid by only setting one driving mechanism. The injection needle 131 and the aspirating needle 132 can move simultaneously to improve work efficiency.

[0063] Furthermore, the movement between the first needle assembly 133 and the second needle assembly 134 is independent of each other. When the first drive assembly drives the first needle assembly 133 to move, the first needle assembly 133 completes the operation of pumping and aspirating liquid; when the second drive assembly drives the second needle assembly 134 to move, the second needle assembly 134 completes the operation of pumping and aspirating liquid. Compared with the prior art, in which multiple cleaning needles in analytical and detection equipment simultaneously make vertical movements to realize the cleaning function, and the movement of each needle is not independent of each other, the cleaning arm 100 provided in this embodiment, the movement between the first needle assembly 133 and the second needle assembly 134 is independent of each other and does not interfere with each other, so that the holes that need to be cleaned can be cleaned in a targeted manner, solving the problem that the holes that do not need to be cleaned cannot be avoided in the prior art, and greatly improving work efficiency.

[0064] It should be noted that in other optional embodiments of the present invention, the cleaning arm 100 may also be provided with other applicable numbers of needle assemblies.

[0065] Second embodiment

[0066] This embodiment provides an analysis and testing device, which includes a cleaning arm and a device body as provided in the first embodiment. The cleaning arm is arranged on one side of the device body.

[0067] It should be noted that the number of cleaning arms can be set according to actual needs of the analysis and testing equipment.

[0068] By providing the cleaning arm, the entire analysis and testing equipment has a compact structure, high reliability and high working efficiency.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A cleaning arm, characterized in that: include: Bracket assembly; Transmission assembly; the transmission assembly includes at least one linear guide rail; at least one linear guide rail is connected to the support assembly; The needle assembly comprises a liquid injection needle and a liquid suction needle; the needle assembly is fixedly connected to the transmission assembly; and A driving assembly; the driving assembly is transmission-connected to the transmission assembly; the driving assembly is configured to drive the transmission assembly to drive the injection needle and the aspiration needle to move along at least one of the linear guide rails; the linear guide rails include a first linear guide rail and a second linear guide rail; the first linear guide rail and the second linear guide rail are respectively arranged on opposite sides of the support seat; The driving assembly comprises a motor and a synchronous pulley assembly; the motor is transmission-connected to the synchronous pulley assembly; the synchronous pulley assembly is arranged along the direction of at least one of the linear guide rails; The transmission assembly further comprises a slider and a transmission shaft; the transmission shaft is connected to the slider; the needle assembly is fixedly connected to the transmission shaft; the transmission shaft extends to the bracket assembly, and the needle assembly is located on the bracket assembly; the slider is slidably connected to at least one of the linear guide rails, and the synchronous pulley assembly is connected to the slider; The motor comprises a first motor and a second motor; the synchronous pulley assembly comprises a first synchronous pulley assembly and a second synchronous pulley assembly; the first motor is connected to the first synchronous pulley assembly by transmission; the first synchronous pulley assembly is arranged along the direction of the first linear guide rail; the second motor is connected to the second synchronous pulley assembly by transmission; the second synchronous pulley assembly is arranged along the direction of the second linear guide rail; The slider includes a first slider and a second slider, the first slider is fixedly connected to the first synchronous pulley assembly; the second slider is fixedly connected to the second synchronous pulley assembly; the first slider is slidably connected to the first linear guide rail, and the second slider is slidably connected to the second linear guide rail.

2. The cleaning arm according to claim 1, characterized in that: The support assembly includes a base plate, a support seat and a support block; the support seat is connected between the base plate and the support block; and at least one linear guide rail is arranged on the support seat.

3. The cleaning arm according to claim 1, characterized in that: The transmission shaft includes a first transmission shaft and a second transmission shaft; the first slider is fixedly connected to the first transmission shaft; and the second slider is fixedly connected to the second transmission shaft.

4. The cleaning arm according to any one of claims 1 to 3, characterized in that: The needle assembly comprises a supporting arm; a mounting portion is arranged at the free end of the supporting arm, and the injection needle and the aspiration needle are both arranged in the mounting portion.

5. An analytical testing device, characterized in that: The analytical testing device comprises a cleaning arm as claimed in any one of claims 1 to 4; and Equipment body; the cleaning arm is arranged on one side of the equipment body.

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