CN216670085U - Protection device and detection equipment - Google Patents

Abstract

The application discloses protection device and check out test set, including the needle body that is used for detecting the sample that awaits measuring, protection device still includes the pedestal, moving mechanism, the needle cover, the pedestal has the loading end and is located the installation space of loading end place one side, moving mechanism is located the installation space and is connected with the pedestal, moving mechanism can dismantle with the needle body and be connected, the needle cover is connected in moving mechanism, the needle cover has the accommodation space and the opening that communicates with the accommodation space, at least part of needle cover has elasticity and the needle cover can be used for with the sample butt that awaits measuring, moving mechanism configures into the motion of at least one among drive needle body and the needle cover, so that the needle body holds in the accommodation space via the opening. When the needle body is accommodated in the accommodating space of the needle sleeve, the needle body can be effectively prevented from being damaged due to collision with other objects in the storage process, the service life of the needle body is prolonged, and when the needle sleeve is abutted against a sample to be detected, the phenomenon that the needle body slides due to the influence of external force in the use process can be effectively reduced.

Description

Protection device and detection equipment

Technical Field

The application relates to the technical field of detection equipment, in particular to a protection device and detection equipment.

Background

When the detection equipment detects a sample to be detected, the detection equipment is usually matched with a probe station for use, and the performance of the sample to be detected is tested by abutting a needle body of the probe station and the sample to be detected placed on an operation table top of the detection equipment.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a protection device and check out test set, can fix the needle body, effectively reduce the needle body and cause the gliding phenomenon of needle body because of receiving the influence of external force in the use to guarantee the needle body measuring accuracy, can also protect the needle body, effectively reduce the needle body and deposit the phenomenon that the in-process caused the damage because of colliding with other objects, thereby reduced the loss of needle body, effectively prolonged the life of needle body.

In a first aspect, an embodiment of the present application provides a protection device, including a needle body for detecting a sample to be detected; the protection device further comprises a base body, a moving mechanism and a needle sleeve, wherein the base body is provided with a bearing surface and an installation space located on one side of the bearing surface, the moving mechanism is located in the installation space and connected with the base body, the moving mechanism is detachably connected with the needle body, the needle sleeve is connected with the moving mechanism, the needle sleeve is provided with an accommodating space and an opening communicated with the accommodating space, at least part of the needle sleeve is elastic, the needle sleeve can be abutted against a sample to be tested, and the moving mechanism is configured to drive at least one of the needle body and the needle sleeve to move so that the needle body is accommodated in the accommodating space through the opening.

The protection device based on the embodiment of the application comprises a base body, a moving mechanism is arranged in an installation space of the base body, the moving mechanism serves as a power source to provide driving force for a needle body and a needle sleeve connected with the moving mechanism to drive the needle body and/or the needle sleeve to move, when the needle body is idle, the needle body and/or the needle sleeve are driven by the moving mechanism, the relative position between the needle body and the needle sleeve is changed, the needle body can be accommodated in an accommodating space of the needle sleeve through an opening of the needle sleeve finally, the needle sleeve protects the needle body to avoid the needle body from being damaged due to collision with other objects in the storage process, the loss of the needle body is reduced, the service life of the needle body is effectively prolonged, when the needle body works, the needle body and the needle sleeve are abutted to a sample to be detected under the driving of the moving mechanism, the performance of the sample to be detected when the needle body is in contact with the sample to be detected, the needle sleeve has elasticity so as to have the effects of buffering and damping, the needle cover is connected with the moving mechanism, so that the possibility that the sample to be detected deviates due to vibration on the operation table top can be reduced, the possibility that the protective device deviates due to vibration on the operation table top can be reduced, and the stability of the needle body can be ensured, so that the relative fixation of the position between the needle body and the sample to be detected can be realized.

In some embodiments, the needle guard includes a sleeve and a support member, a wall surface of an inner side of the sleeve is surrounded to form an accommodating space, one end of the sleeve is connected with the moving mechanism, the support member has elasticity and is connected with the sleeve, and one end of the support member, which is far away from the sleeve, is used for abutting against a sample to be tested.

Based on the embodiment, when the needle body is idle, the sleeve can hold the needle body in the accommodating space to protect the needle body; the needle body during operation, support piece and the sample butt that awaits measuring, thereby support piece have elasticity and have buffering absorbing effect, can reduce the sample that awaits measuring and produce the stability of needle body in order to guarantee the probably of skew because of vibrations at the operation mesa because of the vibration at the operation mesa, support piece passes through the sleeve and is connected with moving mechanism, can reduce protection device on the operation mesa to realize the relative fixation of position between needle body and the sample that awaits measuring.

In some embodiments, the support member includes a fixed bracket coupled to the sleeve and a bumper coupled to an end of the fixed bracket remote from the sleeve.

Based on above-mentioned embodiment, fixed bolster and muffjoint, can transmit the shaking force that the sleeve received for the buffer block, thereby the buffer block has elasticity and has the effect of buffering shock attenuation, and buffer block and the sample butt that awaits measuring, can reduce the sample that awaits measuring and produce the possibility of skew because of vibrations at the operation mesa, the buffer block passes through fixed bolster and sleeve and is connected with moving mechanism, can reduce the stability of protection device production skew because of vibrations on the operation mesa probably in order to guarantee the needle body, thereby realize the relatively fixed of position between needle body and the sample that awaits measuring. In addition, elastic connection between buffer block and the sample that awaits measuring has reduced the sample that awaits measuring and has produced the loss with support piece butt in-process.

In some embodiments, the moving mechanism includes a first moving mechanism and a second moving mechanism, the first moving mechanism is located in the installation space, the first moving mechanism is connected with the needle body, the second moving mechanism is located in the installation space, the second moving mechanism and the first moving mechanism are arranged along a direction perpendicular to the bearing surface, and the needle sleeve is connected with the second moving mechanism.

Based on above-mentioned embodiment, through being connected first moving mechanism and needle body, first moving mechanism can drive the needle body alone and remove, and on the same hand, second moving mechanism is connected with the needle cover, and second moving mechanism can drive the needle cover alone and remove, has realized moving mechanism to the independent control of needle body and needle cover, effectively reduces needle body and needle cover because of producing the possibility of mutual interference (for example shutting down) through the control of same moving mechanism to the convenience of moving mechanism control needle body and/or needle cover motion has been promoted.

In some embodiments, the protection device further includes a switching mechanism located in the installation space, the switching mechanism is located between the first moving mechanism and the second moving mechanism, the switching mechanism is connected to the first moving mechanism and the second moving mechanism, and the switching mechanism includes a first switching state in which the switching mechanism drives the first moving mechanism to move in the first direction and a second switching state in which the switching mechanism drives the second moving mechanism to move in the first direction.

Based on the above-mentioned embodiment, the switching mechanism is connected with the first moving mechanism in the first switching state, the switching mechanism drives the first moving mechanism to move along the first direction, thereby driving the needle body to move along the first direction, the switching mechanism is connected with the second moving mechanism when in the second switching state, the switching mechanism drives the second moving mechanism to move along the first direction, thereby driving the needle sleeve to move along the first direction, namely, by controlling the switching mechanism to switch between the first switching state and the second switching state, the first moving mechanism and the second moving mechanism can move along the first direction independently by configuring a driving piece, and driving pieces for driving the first moving mechanism and the second moving mechanism to move along the first direction are not needed to be arranged for the first moving mechanism and the second moving mechanism respectively, so that the number of parts of the protection device is reduced, the structure of the protection device is simpler, and the production cost and the maintenance cost are lower.

In some embodiments, the switching mechanism includes a driving member and a switching member, the driving member is connected to the base, the switching member is connected to the driving member, the switching member is connected to the first moving mechanism in the first switching state, and the switching member is connected to the second moving mechanism in the second switching state, wherein the driving member is configured to drive the first moving mechanism to move in the first direction in the first switching state, and the driving member is configured to drive the second moving mechanism to move in the first direction in the second switching state.

Based on the embodiment, the switching piece can be switched between a first switching state and a second switching state, the driving piece is used as a power source for providing driving force, the driving piece is connected with the switching piece and transmits the power to the switching piece to drive the switching piece to move, the switching piece is connected with the first moving mechanism in the first switching state to transmit the power to the first moving mechanism, so that the first moving mechanism moves along a first direction, and the needle body is connected with the first moving mechanism and can move along the first direction along with the first moving mechanism to change the relative position between the needle body and the needle sleeve; the switching piece is connected with the second moving mechanism in a second switching state so as to transmit power to the second moving mechanism, so that the second moving mechanism is driven to move along the first direction, and the needle sleeve is connected with the second moving mechanism so as to move along the first direction along with the second moving mechanism, so that the relative position between the needle body and the needle sleeve is changed.

In some embodiments, the driving member includes a screw rod, a guide rod and a driving block, the screw rod is disposed along a direction parallel to the first direction and is rotatably connected to the base, the guide rod is disposed along a direction parallel to the first direction and is fixedly connected to the base, the driving block penetrates through the guide rod and is in threaded engagement with the screw rod, and the driving block is in sliding engagement with the switching member.

Based on the embodiment, the screw rod rotates to drive the driving block in threaded connection with the screw rod to move on the guide rod along the first direction, the driving block moves to drive the switching piece in sliding connection with the driving block to move along the first direction together with the driving block, the switching piece drives the first moving mechanism connected with the switching piece to move along the first direction under the first switching state, and the first moving mechanism moves to drive the needle body connected with the first moving mechanism to move along the first direction, so that the relative position between the needle body and the needle sleeve is changed; or the switching piece drives the second moving mechanism connected with the switching piece to move along the first direction under the second switching state, and the second moving mechanism drives the needle sleeve connected with the second moving mechanism to move along the first direction, so that the relative position between the needle body and the needle sleeve is changed.

In some embodiments, the end face of the driving block is provided with a sliding groove arranged in a direction perpendicular to the bearing surface, the switching element comprises a sliding block in sliding fit with the sliding groove, the first moving mechanism is provided with a first clamping groove, the second moving mechanism is provided with a second clamping groove, the sliding block is in clamping fit with the first clamping groove in the first switching state, and the sliding block is in clamping fit with the second clamping groove in the second switching state.

Based on the above embodiment, the sliding block moves along the sliding groove of the driving block in the direction away from the bearing surface of the seat body to be in clamping fit with the first clamping groove of the first moving mechanism, that is, the driving block is connected with the first moving mechanism through the sliding block, so that the driving block moves along the first direction and drives the first moving mechanism to move along the first direction along with the driving block through the sliding block; similarly, the slide block moves towards the direction close to the bearing surface of the base body along the sliding groove of the driving block to be in clamping fit with the second clamping groove of the second moving mechanism, namely the driving block is connected with the second moving mechanism through the slide block, so that the driving block moves along the first direction and drives the second moving mechanism to move along the first direction along with the driving block through the slide block, and the design reduces the switching difficulty of the switching mechanism between the first switching state and the second switching state.

In some embodiments, the base includes a bottom plate, a supporting rod, a supporting plate, a first supporting slide rail and a second supporting slide rail, the bottom plate has a carrying surface, the supporting rod is located on one side of the carrying surface and connected to the bottom plate, the supporting plate is connected to one end of the supporting rod away from the bottom plate, the screw rod is rotatably connected to the supporting plate, the guiding rod is fixedly connected to the supporting plate, the first supporting slide rail is connected to one side of the supporting plate away from the bottom plate and slidably engaged with the first moving mechanism, and the second supporting slide rail is connected to one side of the supporting plate close to the bottom plate and slidably engaged with the second moving mechanism.

Based on the above embodiment, the first moving mechanism is connected with the supporting plate through the first supporting track, the second moving mechanism is connected with the supporting plate through the second supporting track, the screw rod is rotatably connected with the supporting plate, the guide rod is fixedly connected with the supporting plate, the supporting plate is connected with the bottom plate through the supporting rod, and through the design, the base body provides support for the first moving mechanism, the second moving mechanism, the screw rod and the guide rod, so that the structure of the protection device is more stable.

In some embodiments, the first moving mechanism comprises a first moving assembly, a second moving assembly and a third moving assembly, the first moving assembly is used for being connected with the switching mechanism in the first switching state, the second moving assembly is matched with the first moving assembly in a sliding mode along the second direction, the third moving assembly is matched with the second moving assembly in a sliding mode along the third direction, the third moving assembly is connected with the needle body, the second moving mechanism comprises a fourth moving assembly, the fourth moving assembly is used for being connected with the switching mechanism in a second switching state, the fifth moving assembly is in sliding fit with the fourth moving assembly along the second direction, the sixth moving assembly is in sliding fit with the fifth moving assembly along the third direction, the needle sleeve is connected with the sixth moving assembly, and the first direction, the second direction and the third direction are perpendicular to each other in pairs.

Based on the above embodiment, when the switching mechanism is connected to the first moving assembly in the first switching state, the switching mechanism drives the first moving assembly to move along the first direction, the second moving assembly is in sliding fit with the first moving assembly, and the third moving assembly is in sliding fit with the second moving assembly, so that the first moving assembly drives the second moving assembly and the third moving assembly to move together along the first direction, and the needle body is connected to the third moving assembly, so that the needle body follows the first moving assembly, the second moving assembly and the third moving assembly to move together along the first direction, when the second moving assembly moves along the second direction, the third moving assembly is in sliding fit with the second moving assembly, so that the second moving assembly drives the third moving assembly to move together along the second direction, and further drives the needle body connected to the third moving assembly to move together along the second direction, and when the third moving assembly moves along the third direction, the needle body is connected with the third moving component, so that the third moving component drives the needle body to move along the third direction, the first moving component drives the needle body to move along the first direction, the second moving component drives the needle body to move along the second direction, and the third moving component drives the needle body to move along the third direction; similarly, when the switching mechanism is connected with the fourth moving assembly in the second switching state, the fourth moving assembly drives the needle sleeve to move along the first direction, the fifth moving assembly drives the needle sleeve to move along the second direction, and the sixth moving assembly drives the needle sleeve to move along the third direction; the first direction, the second direction and the third direction are mutually vertical in pairs, so that the needle body and the needle sleeve can move in any straight line in a three-dimensional space.

In some of these embodiments, the needle guard defines an opening disposed along the direction of extension of the needle guard.

Based on above-mentioned embodiment, through designing into the opening of needle cover and arranging along the extending direction of needle cover, can effectively reduce the needle cover and interfere the possibility of needle body at the needle body via the in-process of the opening of needle cover penetrating or wearing out the accommodation space of needle cover, the event has reduced the degree of difficulty that the needle body penetrated or worn out the needle cover.

In a second aspect, an embodiment of the present application provides a detection apparatus, which includes an operation table and the above protection device, where the operation table has an operation table top for bearing a sample to be tested, and the protection device is disposed on the operation table top.

Based on the detection equipment in the embodiment of the application, the detection equipment with the protection device drives the needle body and the needle sleeve to move through the moving mechanism of the protection device when the detection is finished, so that the needle body is accommodated in the accommodating space of the needle sleeve through the opening of the needle sleeve, the needle body is prevented from being collided with other objects in the storage process to cause damage, and the service life of the needle body is prolonged.

Based on protection device and check out test set of this application embodiment, through setting up moving mechanism in the installation space of pedestal, moving mechanism provides drive power for needle body and needle cover connected with it as the power supply and in order to drive needle body and/or needle cover motion, when the needle body was idle, needle body and/or needle cover are under moving mechanism's drive, the relative position between needle body and the needle cover changes, make the needle body can hold in the accommodation space of needle cover via the opening of needle cover finally, the needle cover is protected to the needle body in order to avoid the needle body to collide with other objects and receive the damage in the course of depositing, thereby the loss of needle body has been reduced, the life of needle body has effectively been prolonged, during operation, needle body and needle cover are with the sample butt that awaits measuring under moving mechanism's drive, the needle body is with the sample that awaits measuring the performance of sample is detected in the contact, the needle cover has elasticity thereby has buffering shock attenuation effect, the needle cover is connected with the moving mechanism, so that the possibility that the sample to be detected deviates due to vibration on the operation table top can be reduced, the possibility that the protective device deviates due to vibration on the operation table top can be reduced, and the stability of the needle body can be ensured, so that the relative fixation of the position between the needle body and the sample to be detected can be realized.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a protection device according to an embodiment of the present application;

FIG. 2 is a schematic view of the protective device of one embodiment of the present application with the needle hub separated from the needle body;

FIG. 3 is a schematic structural view of a protective device according to another embodiment of the present application;

FIG. 4 is a cross-sectional view of the switching mechanism in a first switching state according to an embodiment of the present application;

FIG. 5 is a cross-sectional view of a switching mechanism in a second switching state according to an embodiment of the present application;

fig. 6 is a cross-sectional view of the switching mechanism in an intermediate state between the first switching state and the second switching state according to an embodiment of the present application.

Reference numerals: 10. a protection device; 11. a base body; 111. a base plate; 1111. a bearing surface; 112. a support bar; 113. a support plate; 114. a first support rail; 115. a second support slide rail; 12. a needle sleeve; 121. an accommodating space; 122. an opening; 123. a support member; 1231. fixing a bracket; 1232. a buffer block; 124. a sleeve; 13. a moving mechanism; 131. a first moving mechanism; 1311. a first moving assembly; 1312. a second moving assembly; 1313. a third moving assembly; 13131. a third holding part; 13111. a first card slot; 132. a second moving mechanism; 1321. a fourth moving assembly; 13211. a second card slot; 1322. a fifth moving assembly; 1323. a sixth moving assembly; 13231. a sixth holding part; 14. a switching mechanism; 141. a switching member; 1411. a slider; 1412. a connecting rod; 1413. switching a handle; 142. a drive member; 1421. a screw rod; 1422. a guide bar; 1423. a drive block; 14231. a chute; 1424. a first holding portion; 20. a needle body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the related art, when the detection device detects a sample to be detected, the detection device is usually used with a probe station, and a needle body of the probe station is abutted against the sample to be detected placed on an operation table of the detection device to test the performance (such as conductivity) of the sample to be detected. The needle body is used as an important detection part in the detection equipment, so how to effectively prevent the needle tip of the needle body from colliding with other objects to cause damage in the storage process of the needle body becomes a problem to be solved urgently.

In order to solve the above technical problem, please refer to fig. 1 to 6, a first aspect of the present application provides a protection device 10, which can fix a needle body 20, and effectively reduce a phenomenon that the needle body 20 slides due to an external force during a use process of the needle body 20, thereby ensuring a measurement accuracy of the needle body 20, and can also protect the needle body 20, and effectively reduce a phenomenon that the needle body 20 is damaged due to collision with another object during a storage process, thereby reducing a loss of the needle body 20, and effectively prolonging a service life of the needle body 20.

The protection device 10 includes a needle body 20 for detecting a sample to be detected, the protection device 10 further includes a base body 11, a moving mechanism 13, and a needle sheath 12, the base body 11 has a bearing surface 1111 and an installation space located at one side of the bearing surface 1111, the moving mechanism 13 is located in the installation space and connected to the base body 11, the moving mechanism 13 is detachably connected to the needle body 20, the needle sheath 12 is connected to the moving mechanism 13, the needle sheath 12 has an accommodation space 121 and an opening 122 communicated with the accommodation space 121, at least a portion of the needle sheath 12 has elasticity, and the needle sheath 12 can be used for being abutted against the sample to be detected, wherein the moving mechanism 13 is configured to drive at least one of the needle body 20 and the needle sheath 12 to move, so that the needle body 20 is accommodated in the accommodation space 121 through the opening 122.

According to the protection device 10 of the embodiment of the application, the moving mechanism 13 is arranged in the installation space of the seat body 11, the moving mechanism 13 serves as a power source to provide driving force for the needle 20 and the needle sheath 12 connected with the moving mechanism 13 to drive the needle 20 and/or the needle sheath 12 to move, when the needle 20 is idle, the relative position between the needle 20 and the needle sheath 12 is changed under the driving of the moving mechanism 13, so that the needle 20 can be finally accommodated in the accommodating space 121 of the needle sheath 12 through the opening 122 of the needle sheath 12, the needle sheath 12 protects the needle 20 to prevent the needle 20 from being damaged due to collision with other objects in the storage process, thereby reducing the loss of the needle 20, effectively prolonging the service life of the needle 20, when the needle 20 works, the needle 20 and the needle sheath 12 are abutted against a sample to be tested under the driving of the moving mechanism 13, needle body 20 detects the performance of the sample that awaits measuring with the sample contact that awaits measuring, thereby needle cover 12 has elasticity and has the effect of buffering shock attenuation, needle cover 12 and the sample butt that awaits measuring can reduce the sample that awaits measuring and produce the possibility of skew because of vibrations at the operation mesa, needle cover 12 is connected with moving mechanism 13, can reduce protection device 10 and produce the possibility of skew because of vibrations on the operation mesa in order to guarantee the stability of needle body 20 to realize the relative fixation of position between needle body 20 and the sample that awaits measuring.

The specific structure of the protection device 10 will be described in detail below with reference to fig. 1 to 6.

The protection device 10 includes a probe 20 for inspecting a sample to be tested, wherein the sample to be tested may be a wafer, and the probe 20 is contacted with the wafer to test a certain performance of the wafer (for example, the probe 20 may be used for inspecting a failure position of the wafer).

Fig. 1-2 show a schematic view of a protective device according to an embodiment of the present invention, fig. 1 is a schematic view of the protective device according to an embodiment of the present invention, and fig. 2 shows a schematic view of the protective device according to an embodiment of the present invention when a needle hub is separated from a needle body.

The protector 10 includes a holder body 11, a moving mechanism 13, and a needle sheath 12.

The seat 11 is used as a component of the protection device 10 for providing support for the moving mechanism 13, the seat 11 should be made of a material with good rigidity and strength, and the specific material of the seat 11 is not limited herein, so that a designer can reasonably select the seat according to needs on the premise of saving cost as much as possible, and the specific structure of the seat 11 will be described later. The seat body 11 has a bearing surface 1111 and an installation space located at one side of the bearing surface 1111, the bearing surface 1111 is a surface of the seat body 11 for bearing other components, and the space located at one side of the bearing surface 1111 of the seat body 11 is the installation space.

The moving mechanism 13 is used as a part of the protection device 10 for driving the needle body 20 and the needle sheath 12 to move, the moving mechanism 13 is located in the installation space and is connected with the seat 11, and the specific structure of the moving mechanism 13, the specific positional relationship between the moving mechanism 13 and the seat 11, and the connection relationship will be described in detail below. The moving mechanism 13 is detachably connected to the needle body 20, for example, the needle body 20 and the moving mechanism 13 may be detachably connected in a snap fit manner, or may be detachably connected in a magnetic adsorption manner, or may be detachably connected in a screw fit manner. Through the detachable connection of the needle body 20 and the moving mechanism 13, the needle body 20 damaged due to long-term work can be replaced conveniently, and therefore the measurement accuracy of the needle body 20 on a sample to be measured is ensured.

The needle hub 12, which is a part of the protector 10 for protecting the needle 20, is connected to the moving mechanism 13, wherein, the needle sheath 12 can be detachably connected with the moving mechanism 13, or can be non-detachably connected, when the needle sleeve 12 is detachably connected with the moving mechanism 13, the needle sleeve 12 and the moving mechanism 13 can be detachably connected in a clamping fit manner, or can be detachably connected in a magnetic adsorption manner, or can be detachably connected in a screw joint fit manner, when the needle sheath 12 is non-detachably connected with the moving mechanism 13, the needle sheath 12 and the moving mechanism 13 can be non-detachably connected in a welding manner, or can be non-detachably connected in a gluing manner. The needle sheath 12 has an accommodating space 121 and an opening 122 communicating with the accommodating space 121, the space in the needle sheath 12 for accommodating the needle body 20 is the accommodating space 121, and the part of the needle sheath 12 for the needle body 20 to penetrate into or out of the accommodating space 121 of the needle sheath 12 is the opening 122. The needle guard 12 is at least partially elastic, the needle guard 12 can be used for being abutted with a sample to be tested, the part of the needle guard 12 close to the sample to be tested has elasticity, the end far away from the sample to be tested has elasticity, and the whole needle guard 12 has elasticity. The specific construction of needle hub 12 will be described in greater detail below.

The moving mechanism 13 is configured to drive at least one of the needle body 20 and the needle sheath 12 to move, so that the needle body 20 is received in the accommodating space 121 through the opening 122. That is, the moving mechanism 13 can only drive the needle 20 to move, while the needle sheath 12 is kept stationary at the present position, and the moving mechanism 13 drives the needle 20 to move towards the needle sheath 12 to change the relative position between the needle 20 and the needle sheath 12, so that the needle 20 is finally accommodated in the accommodating space 121 of the needle sheath 12 through the opening 122 of the needle sheath 12; the moving mechanism 13 may only drive the needle sheath 12 to move, while the needle 20 remains in the existing position, and the moving mechanism 13 drives the needle sheath 12 to move towards the needle 20 to change the relative position between the needle 20 and the needle sheath 12, so that the needle 20 is finally accommodated in the accommodating space 121 of the needle sheath 12 through the opening 122 of the needle sheath 12; the moving mechanism 13 may also drive the needle body 20 and the needle sheath 12 to move so as to change the relative position between the needle body 20 and the needle sheath 12, and finally enable the needle body 20 to be accommodated in the accommodating space 121 of the needle sheath 12 through the opening 122 of the needle sheath 12, for example, the moving mechanism 13 may drive the needle body 20 to move towards the needle sheath 12 to a certain preset position, and then drive the needle sheath 12 to move towards the needle body 20 to a certain preset position where the needle body 20 is located, and finally enable the needle body 20 to be accommodated in the accommodating space 121 of the needle sheath 12 through the opening 122 of the needle sheath 12; of course, the moving mechanism 13 may drive the needle sheath 12 to move toward the needle 20 to a predetermined position, and then the moving mechanism 13 drives the needle 20 to move toward the needle sheath 12 to a predetermined position of the needle sheath 12, so that the needle 20 is finally accommodated in the accommodating space 121 of the needle sheath 12 through the opening 122 of the needle sheath 12.

As shown in fig. 3, fig. 3 is a schematic structural diagram of a protection device in another embodiment of the present application.

Considering that the needle body 20 needs to be protected to avoid the needle body 20 from colliding with other objects and being worn when the needle body 20 is idle, in order to ensure the accuracy of the detection result when the needle body 20 is in operation, the abutting position of the needle body 20 and the sample to be detected needs to be kept unchanged, the needle sheath 12 further includes, in some embodiments, a sleeve 124 and a support member 123, an inner side wall surface of the sleeve 124 is surrounded to form an accommodating space 121, one end of the sleeve 124 is connected with the moving mechanism 13, the support member 123 has elasticity and is connected with the sleeve 124, and one end of the support member 123 away from the sleeve 124 is used for abutting the sample to be detected. By this design, when the needle body 20 is idle, the sleeve 124 can accommodate the needle body 20 in the accommodating space 121 to protect the needle body 20; needle body 20 during operation, support piece 123 and the sample butt that awaits measuring, thereby support piece 123 have elasticity and have the effect of buffering shock attenuation, can reduce the sample that awaits measuring and produce the possibility of skew because of vibrations at the operation mesa, support piece 123 passes through sleeve 124 and is connected with moving mechanism 13, can reduce protection device 10 and produce the possibility of skew because of vibrations on the operation mesa in order to guarantee needle body 20's stability to realize the relative fixation in position between needle body 20 and the sample that awaits measuring.

Considering that the needle body 20 and the needle sheath 12 are driven by the moving mechanism 13 to cause the whole protection device 10 to vibrate, in order to reduce the vibration loss caused by the mechanical transmission and the adverse effect generated when the protection device 10 is subjected to the external force, it is further designed that, in some embodiments, the supporting member 123 includes a fixing bracket 1231 and a buffer block 1232, the fixing bracket 1231 is connected with the sleeve 124, and the buffer block 1232 is connected with one end of the fixing bracket 1231 away from the sleeve 124. For example, the bumper 1232 may include three rods that are connected to the sleeve at an inclined angle at the same supporting point, and the bumper 1232 should be made of elastic rubber material to better absorb energy when the fixing bracket 1231 is stressed. Through this design, fixed bolster 1231 is connected with sleeve 124, can transmit the shaking force that sleeve 124 received for buffer block 1232, thereby buffer block 1232 has elasticity and has the effect of buffering shock attenuation, and buffer block 1232 and the sample butt that awaits measuring, can reduce the sample that awaits measuring and produce the possibility of skew because of vibrations at the operation mesa, buffer block 1232 is connected with moving mechanism 13 through fixed bolster 1231 and sleeve 124, can reduce protection device 10 and produce the possibility of skew because of vibrations on the operation mesa in order to guarantee the stability of needle body 20, thereby realize the relatively fixed of position between needle body 20 and the sample that awaits measuring. In addition, the buffer block 1232 is elastically connected with the sample to be measured, so that the loss of the sample to be measured in the process of abutting against the support 123 is reduced.

It is understood that the movement of the needle body 20 and the needle sheath 12 in the three-dimensional space can be controlled by the same moving mechanism, or can be controlled by two moving mechanisms, so as to control the convenience of the movement of the needle body 20 and/or the needle sheath 12 for the lifting moving mechanism 13, and it is further designed that in some embodiments, the moving mechanism 13 includes a first moving mechanism 131 and a second moving mechanism 132, the first moving mechanism 131 is located in the installation space, the first moving mechanism 131 is connected with the needle body 20, the second moving mechanism 132 is located in the installation space, and the second moving mechanism 132 and the first moving mechanism 131 are arranged in the direction perpendicular to the bearing surface 1111, and the needle sheath 12 is connected with the second moving mechanism 132. That is, the first moving mechanism 131 and the second moving mechanism 132 are arranged longitudinally, and the first moving mechanism 131 may be located above the second moving mechanism 132 or below the second moving mechanism 132. In the design, the first moving mechanism 131 is connected with the needle body 20, the first moving mechanism 131 can independently drive the needle body 20 to move, similarly, the second moving mechanism 132 is connected with the needle sleeve 12, and the second moving mechanism 132 can independently drive the needle sleeve 12 to move, so that the needle body 20 and the needle sleeve 12 can be independently controlled by the moving mechanism 13, the possibility of mutual interference (such as shutdown) caused by the control of the needle body 20 and the needle sleeve 12 by the same moving mechanism 13 is effectively reduced, and the convenience of controlling the movement of the needle body 20 and/or the needle sleeve 12 by the moving mechanism 13 is improved.

Of course, in other embodiments, the moving mechanism 13 may also include a first moving mechanism 131 and a second moving mechanism 132, the first moving mechanism 131 is located in the installation space, the first moving mechanism 131 is connected to the needle body 20, the second moving mechanism 132 is located in the installation space, the second moving mechanism 132 and the first moving mechanism 131 are arranged in a direction parallel to the bearing surface 1111, and the needle hub 12 is connected to the second moving mechanism 132.

Continuing with fig. 1, it is contemplated that two drive members 142 may be used to control the first displacement mechanism 131 to drive the needle 20 and the second displacement mechanism 132 to drive the needle hub 12, thereby changing the relative position between the needle body 20 and the needle hub 12 and further simplifying the structure of the protector to reduce the number of parts required for the protector 10, and therefore, in some embodiments, the protection device 10 further includes a switching mechanism 14 located in the installation space, the switching mechanism 14 is located between the first moving mechanism 131 and the second moving mechanism 132, the switching mechanism 14 is connected to the first moving mechanism 131 and the second moving mechanism 132, and the switching mechanism 14 includes a first switching state in which the switching mechanism 14 drives the first moving mechanism 131 to move in the first direction, and a second switching state in which the switching mechanism 14 drives the second moving mechanism 132 to move in the first direction. That is, the switching mechanism 14 switches the connection with the first moving mechanism 131 and the second moving mechanism 132 by switching between a first switching state and a second switching state, so as to realize the independent movement of the first moving mechanism 131 and the second moving mechanism 132 in a first direction, wherein the first direction is understood to be a direction parallel to the carrying surface 1111. In the design, the switching mechanism 14 is connected to the first moving mechanism 131 when in the first switching state, the switching mechanism 14 drives the first moving mechanism 131 to move along the first direction, so as to drive the needle body 20 to move along the first direction, the switching mechanism 14 is connected to the second moving mechanism 132 when in the second switching state, the switching mechanism 14 drives the second moving mechanism 132 to move along the first direction, so as to drive the needle sheath 12 to move along the first direction, that is, by controlling the switching mechanism 14 to switch between the first switching state and the second switching state, the first moving mechanism 131 and the second moving mechanism 132 can be moved along the first direction by configuring one driving member 142 without configuring driving members 142 for driving the first moving mechanism 131 and the second moving mechanism 132 to move along the first direction respectively, so that the number of parts of the protection device 10 is saved, and the structure of the protection device 10 is made simpler, the production cost and the maintenance cost are lower.

It is understood that the switching mechanism 14 is not only connected to the first moving mechanism 131 in the first switching state or connected to the second moving mechanism 132 in the second switching state, but also the switching mechanism 14 is used as a power source for generating a driving force to drive the first moving mechanism 131 to move in the first direction in the first switching state or drive the second moving mechanism 132 to move in the first direction in the second switching state, so it is further designed that in some embodiments, the switching mechanism 14 includes a driving member 142 and a switching member 141, the driving member 142 is connected to the base 11, the switching member 141 is connected to the driving member 142, the switching member 141 is connected to the first moving mechanism 131 in the first switching state, the switching member 141 is connected to the second moving mechanism 132 in the second switching state, wherein the driving member 142 is configured such that the switching member 141 drives the first moving mechanism 131 to move in the first direction in the first switching state, the driving member 142 is configured to drive the second moving mechanism 132 to move along the first direction in the second switching state by the switching member 141. The specific structure of the driving member 142 and the specific structure of the switching member 141 will be described later. In this design, the switching member 141 can be switched between a first switching state and a second switching state, the driving member 142 serves as a power source for providing driving force, the driving member 142 is connected to the switching member 141 to transmit power to the switching member 141 to drive the switching member 141 to move, the switching member 141 is connected to the first moving mechanism 131 in the first switching state to transmit power to the first moving mechanism 131, so that the first moving mechanism 131 moves in a first direction, and the needle body 20 is connected to the first moving mechanism 131 to move along the first direction along with the first moving mechanism 131, so as to change the relative position between the needle body 20 and the needle sheath 12; the switching member 141 is connected to the second moving mechanism 132 in the second switching state to transmit power to the second moving mechanism 132, so as to drive the second moving mechanism 132 to move along the first direction, and the needle sheath 12 is connected to the second moving mechanism 132 to move along the first direction along with the second moving mechanism 132, so as to change the relative position between the needle body 20 and the needle sheath 12.

It is understood that there are many specific structures as the driving member of the switching mechanism 14 for driving the first moving mechanism 131 or the second moving mechanism 132 to move linearly along the first direction, for example, the driving member 142 can be a cylinder, the linear movement of the first moving mechanism 131 or the second moving mechanism 132 along the first direction can be realized by the telescopic movement of the piston rod of the cylinder, and it is further designed to increase the accuracy of the movement of the needle 20 relative to the needle sheath 12 (or the needle sheath 12 relative to the needle 20) in the first direction to improve the practicability of the protection device 10 in consideration of the uncertainty of the amount of the displacement change of the needle 20 relative to the needle sheath 12 (or the needle sheath 12 relative to the needle 20), and in some embodiments, the driving member 142 comprises a screw 1421, a guide rod 1422 and a driving block 1423, the screw 1421 is arranged along a direction parallel to the first direction and is rotatably connected with the seat body 11, the guide bar 1422 is disposed along a direction parallel to the first direction and is fixedly connected to the base 11, the driving block 1423 penetrates through the guide bar 1422 and is in threaded engagement with the screw 1421, and the driving block 1423 is in sliding engagement with the switch 141. In the design, the screw 1421 rotates to drive the driving block 1423 in threaded engagement with the screw to move on the guide bar 1422 along a first direction, the driving block 1423 moves to drive the switching piece 141 in sliding engagement with the screw to move along the first direction along with the driving block 1423, the switching piece 141 drives the first moving mechanism 131 connected with the switching piece to move along the first direction under a first switching state, and the first moving mechanism 131 moves to drive the needle body 20 connected with the first moving mechanism to move along the first direction, so that the relative position between the needle body 20 and the needle sheath 12 is changed; or the switching member 141 drives the second moving mechanism 132 connected thereto to move together along the first direction in the second switching state, and the second moving mechanism 132 drives the needle sheath 12 connected thereto to move along the first direction, so as to change the relative position between the needle body 20 and the needle sheath 12.

Of course, in other embodiments, the driving member 142 may further include a first holding portion 1424, and the first holding portion 1424 is coaxially and fixedly connected to the screw 1421, so that a user can conveniently rotate the screw 1421 by means of the first holding portion 1424.

Fig. 4 is a sectional view of a switching mechanism in an embodiment of the present application when the switching mechanism is in a first switching state, fig. 5 is a sectional view of the switching mechanism in an embodiment of the present application when the switching mechanism is in a second switching state, and fig. 6 is a sectional view of the switching mechanism in an embodiment of the present application when the switching mechanism is in an intermediate state between the first switching state and the second switching state.

Considering that the switch member 141 slides relative to the driving block 1423 to be connected to the first moving mechanism 131 in the first switching state and the switch member 141 slides relative to the driving block 1423 to be connected to the second moving mechanism 132 in the second switching state, in order to reduce the difficulty of switching the switch member 141 from the first switching state to the second switching state, so as to make the switching operation of the switch member 141 simpler and more convenient, it is further designed that in some embodiments, the end surface of the driving block 1423 is provided with a sliding slot 14231 arranged along a direction perpendicular to the bearing surface 1111, the switch member 141 includes a sliding block 1411 slidably engaged with the sliding slot 14231, the first moving mechanism 131 is provided with a first slot 13111, the second moving mechanism 132 is provided with a second slot 13211, the sliding block 1411 is engaged with the first slot 13111 in the first switching state, and the sliding block 1411 is engaged with the second slot 13211 in the second switching state. That is to say, when the slide block 1411 slides relative to the driving block 1423 to engage with the first engaging groove 13111 of the first moving mechanism 131, the end of the slide block 1411 away from the first moving mechanism 131 is spaced from the second engaging groove 13211 of the second moving mechanism 132, and similarly, when the slide block 1411 slides relative to the driving block 1423 to engage with the second engaging groove 13211 of the second moving mechanism 132, the end of the slide block 1411 away from the second moving mechanism 132 is spaced from the first engaging groove 13111 of the first moving mechanism 131. It is understood that the slide block 1411 can also slide relative to the driving block 1423 to an intermediate state where it is not in snap fit with the first slot 13111 of the first moving mechanism 131 or the second slot 13211 of the second moving mechanism 132, that is, two ends of the slide block 1411 are respectively spaced from the first slot 13111 of the first moving mechanism 131 and the second slot 13211 of the second moving mechanism 132. In this design, the sliding block 1411 moves along the sliding slot 14231 of the driving block 1423 in the direction away from the bearing surface 1111 of the base body 11 to be engaged with the first engaging groove 13111 of the first moving mechanism 131, i.e. the driving block 1423 is connected to the first moving mechanism 131 through the sliding block 1411, so that the driving block 1423 moves along the first direction and drives the first moving mechanism 131 to move along the first direction along with the driving block 1423 through the sliding block 1411; similarly, the sliding block 1411 moves along the sliding slot 14231 of the driving block 1423 toward the direction close to the bearing surface 1111 of the seat 11 to be in clamping fit with the second clamping slot 13211 of the second moving mechanism 132, that is, the driving block 1423 is connected to the second moving mechanism 132 through the sliding block 1411, so that the driving block 1423 moves along the first direction and drives the second moving mechanism 132 to move along the first direction along with the driving block 1423 through the sliding block 1411, and the design reduces the difficulty of switching the switching mechanism 14 between the first switching state and the second switching state.

As shown in fig. 1, in order to further improve the convenience of sliding the slider 1411 relative to the driving block 1423, in some embodiments, the switching member 141 further includes a connecting rod 1412 and a switching handle 1413, one end of the connecting rod 1412 is fixedly connected to the slider 1411, and one end of the connecting rod 1412, which is far away from the slider 1411, is fixedly connected to the switching handle 1413, by which a user can drive the slider 1411 to move along the sliding slot 14231 by means of the switching handle 1413, so as to realize the engagement between the first engaging slot 13111 of the first moving mechanism 131 and the second engaging slot 13211 of the second moving mechanism 132 in the first switching state or between the first switching state and the second switching state of the switching mechanism 14.

Continuing with fig. 1, considering that the base 11 is used as a carrier for carrying other components in the protection device 10, that is, the base 11 is equivalent to a bracket for mounting and fixing other components in the protection device 10, and in order to simplify the structure of the base 11 and reduce the cost of the protection device, it is further designed that, in some embodiments, the base 11 includes a bottom plate 111, a supporting rod 112, a supporting plate 113, a first supporting slide rail 114 and a second supporting slide rail 115, the bottom plate 111 has a carrying surface 1111, the supporting rod 112 is located at a side where the carrying surface 1111 is located and connected with the bottom plate 111, the supporting plate 113 is connected with an end of the supporting rod 112 away from the bottom plate 111, the screw 1421 is rotatably connected with the supporting plate 113, the guiding rod 1422 is fixedly connected with the supporting plate 113, the first supporting slide rail 114 is connected with a side of the supporting plate 113 away from the bottom plate 111 and is slidably engaged with the first moving mechanism 131, the second supporting slide rail 115 is connected with a side of the supporting plate 113 close to the bottom plate 111, and is slidably engaged with the second moving mechanism 132. In this design, the first moving mechanism 131 is connected to the supporting plate 113 through the first supporting slide rail 114, the second moving mechanism 132 is connected to the supporting plate 113 through the second supporting slide rail 115, the screw 1421 is rotatably connected to the supporting plate 113, the guide bar 1422 is fixedly connected to the supporting plate 113, and the supporting plate 113 is connected to the bottom plate 111 through the supporting bar 112.

As shown in fig. 2, in order to facilitate the control of the relative movement between the needle 20 and the needle hub 12 after the needle 20 has been moved in a first direction to an intermediate position with respect to the needle hub 12, taking into account the uncertainty of the relative position between the needle 20 and the needle hub 12, it is further contemplated that in some embodiments the first movement mechanism 131 comprises a first movement assembly 1311, a second movement assembly 1312 and a third movement assembly 1313, the first movement assembly 1311 being adapted to be connected to the switching mechanism 14 in the first switching state, the second movement assembly 1312 being slidably engaged with the first movement assembly 1311 in the second direction, the third movement assembly 1313 being slidably engaged with the second movement assembly 1312 in the third direction, the third movement assembly 1313 being adapted to be connected to the needle 20, the second movement mechanism 132 comprising a fourth movement assembly 1321, a fifth movement assembly 1322 and a sixth movement assembly 1323, the fourth moving assembly 1321 is configured to be connected to the switching mechanism 14 in the second switching state, the fifth moving assembly 1322 is slidably engaged with the fourth moving assembly 1321 along the second direction, the sixth moving assembly 1323 is slidably engaged with the fifth moving assembly 1322 along the third direction, and the needle guard 12 is connected to the sixth moving assembly 1323, wherein the first direction, the second direction and the third direction are perpendicular to each other two by two.

Specifically, the first moving assembly 1311 includes a first moving part, the first moving part may be a rectangular plate-shaped structure, the first moving part is provided with a first slot 13111 extending in a direction perpendicular to the bearing surface 1111 of the seat 11 along a side surface parallel to the first direction, the second moving assembly 1312 includes a second moving part and a second driving part screwed with the second moving part, the second moving part is slidably fitted with the first moving part along the second direction, the third moving assembly 1313 includes a third moving part and a third driving part screwed with the third moving part, the third moving part is slidably fitted with the second moving part along the third direction, the fourth moving assembly 1321 includes a fourth moving part, the fourth moving part may be a rectangular plate-shaped structure, the fourth moving part is provided with a second slot 13211 extending in a direction perpendicular to the bearing surface 1111 of the seat 11 along a side surface parallel to the first direction, the fifth moving assembly 1322 includes a fifth moving portion and a fifth driving portion in threaded engagement with the fifth moving portion, the fifth moving portion is in sliding engagement with the fourth moving portion along the second direction, the sixth moving assembly 1323 includes a sixth moving portion and a sixth driving portion in threaded engagement with the sixth moving portion, the sixth moving portion is in sliding engagement with the fifth moving portion along the third direction, and the second driving portion, the third driving portion, the fifth driving portion and the sixth driving portion are screws.

In this design, when the switching mechanism 14 is connected to the first moving assembly 1311 in the first switching state, the switching mechanism 14 drives the first moving assembly 1311 to move along the first direction, the second moving assembly 1312 is slidably engaged with the first moving assembly 1311, and the third moving assembly 1313 is slidably engaged with the second moving assembly 1312, so that the first moving assembly 1311 drives the second moving assembly 1312 and the third moving assembly 1313 to move together along the first direction, and the needle 20 is connected to the third moving assembly 1313, so that the needle 20 follows the first moving assembly 1311, the second moving assembly 1312 and the third moving assembly 1313 to move together along the first direction, when the second moving assembly 1312 moves along the second direction, the third moving assembly 1313 is slidably engaged with the second moving assembly 1312, so that the second moving assembly 1312 drives the third moving assembly 1312 to move together along the second direction, and further drives the needle 20 connected to the third moving assembly 1313 to move together along the second direction, when the third moving assembly 1313 moves in the third direction and the needle 20 is connected to the third moving assembly 1313, the third moving assembly 1313 drives the needle 20 together to move in the third direction, so that the first moving assembly 1311 drives the needle 20 to move in the first direction, the second moving assembly 1312 drives the needle 20 to move in the second direction, and the third moving assembly 1313 drives the needle 20 to move in the third direction; similarly, when the switching mechanism 14 is connected to the fourth moving assembly 1321 in the second switching state, the fourth moving assembly 1321 drives the needle sheath 12 to move in the first direction, the fifth moving assembly 1322 drives the needle sheath 12 to move in the second direction, and the sixth moving assembly 1323 drives the needle sheath 12 to move in the third direction; the first direction, the second direction and the third direction are perpendicular to each other two by two, so that any linear movement of the needle body 20 and the needle hub 12 in a three-dimensional space can be realized.

Considering that when the needle body 20 needs to move in the second direction, the user needs to manually rotate the second driving portion of the second moving assembly 1312 to drive the needle body 20 to move in the second direction, in order to reduce the difficulty of the user in rotating the second driving portion, it is further designed that in some embodiments, the second moving assembly 1312 may further include a second holding portion, the second holding portion is coaxially and fixedly connected with the second driving portion, and the second holding portion may be, but not limited to, a handle. Similarly, third movement assembly 1313 may include third grip 13131, fifth movement assembly 1322 may include fifth grip, and sixth movement assembly 1323 may include sixth grip 13231.

Additionally, the third displacement assembly 1313 may also include an intermediate coupling structure via which the needle 20 is removably coupled to the third displacement assembly 1313, and the sixth displacement assembly 1323 may include another intermediate coupling structure via which the needle hub 12 is coupled to the sixth displacement assembly 1323. For example, the intermediate connection structure may be a hollow steel tube, one end of the hollow steel tube is fixedly connected to the third moving component 1313 or the sixth moving component 1323, the needle body 20 is detachably connected to a tube wall of the hollow steel tube, a hollow area of the hollow steel tube may be used to contain a test wire electrically connected to the needle body 20, and the needle sheath 12 is fixedly connected to the tube wall of the hollow steel tube.

It is further contemplated that in some embodiments, the needle hub 12 defines openings 122 disposed along the extension of the needle hub 12 to prevent the needle hub 12 from interfering with the needle 20 and damaging the needle 20 during the process of receiving the needle 20 into the receiving space 121 of the needle hub 12 through the openings 122 of the needle hub 12. Wherein the opening 122 may be, but is not limited to, a rectangular opening 122. In this design, by designing the opening 122 of the needle sheath 12 to be disposed along the extending direction of the needle sheath 12, the possibility of the needle sheath 12 interfering with the needle 20 can be effectively reduced during the process of the needle 20 penetrating into or out of the accommodating space 121 of the needle sheath 12 through the opening 122 of the needle sheath 12, so that the difficulty of the needle 20 penetrating into or out of the needle sheath 12 is reduced.

One of the working flows of the protection device 10 will be briefly described below.

The screw 1421 may be rotated first, so that the driving block 1423 moves to a first position along a first direction, then the switch handle 1413 is used to slide the slider 1411 to engage with the first engaging groove 13111 of the first moving portion to make the switching mechanism 14 in a first switching state, then the screw 1421 is rotated, the driving block 1423 drives the first moving portion to move to a second position along the first direction via the slider 1411, the slider 1411 is shifted to an intermediate state between the first switching state and the second switching state via the switch handle 1413, the screw 1421 is rotated in a reverse direction, so that the driving block 1423 moves to a third position along the first direction (the third position may be in the same vertical direction as the first position, or in a different vertical direction from the first position), then the switch handle 1413 is used to slide the slider 1411 to engage with the second engaging groove 13211 of the fourth moving portion to make the switching mechanism 14 in a second switching state, the lead screw 1421 is rotated again, the driving block 1423 drives the fourth moving portion to move to a fourth position (the fourth position and the second position are located in the same vertical direction) along the first direction through the slide 1411, the second driving portion of the second moving assembly 1312 is rotated, the second moving portion drives the third moving assembly 1313 and the needle body 20 connected to the third moving assembly 1313 to move to a fifth position along the second direction, the third driving portion of the third moving assembly 1313 is rotated, the third moving portion drives the needle body 20 connected to the third moving portion to move to a predetermined position along the third direction, the fifth driving portion of the fifth moving assembly 1322 is rotated, the fifth moving portion drives the sixth moving assembly 1323 and the needle sheath 12 connected to the sixth moving assembly 1323 to move to a sixth position along the second direction, the sixth driving portion of the sixth moving assembly 1323 is rotated, the sixth moving portion drives the needle body 12 connected to move to a predetermined position along the third direction, so that the needle body 20 penetrates through the opening 122 of the needle sheath 12 to accommodate the needle sheath 12 through the needle sheath 12 Is disposed in the space 121.

It should be noted that the above is only one of the working procedures of the protection device 10, and in the actual use, the movement of the needle 20 and the needle sheath 12 in the first direction, the second direction and the third direction is not limited to the above movement sequence, but it should be understood that no matter the sequence of the movement among the switching mechanism 14, the second moving assembly 1312, the third moving assembly 1313, the fifth moving assembly 1322 and the sixth moving assembly 1323, the needle 20 can be finally accommodated in the accommodating space 121 of the needle sheath 12 through the opening 122 of the needle sheath 12, so as to achieve the purpose of protecting the needle 20 by the needle sheath 12.

A second aspect of the present application provides a detection apparatus, which includes an operation table and the above protection device 10, wherein the operation table has an operation table top (not shown in the figure) for bearing a sample to be detected, and the protection device 10 is disposed on the operation table top. In the design, when the detection device with the protection device 10 is finished, the moving mechanism 13 of the protection device 10 drives the needle body 20 and the needle sheath 12 to move, so that the needle body 20 is accommodated in the accommodating space 121 of the needle sheath 12 through the opening 122 of the needle sheath 12, and the needle body 20 is prevented from colliding with other objects to cause damage in the storage process, thereby prolonging the service life of the needle body 20.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (12)

1. A protection device, includes the needle body that is used for detecting the sample that awaits measuring, its characterized in that, protection device still includes:

the seat body is provided with a bearing surface and an installation space positioned on one side of the bearing surface;

the moving mechanism is positioned in the installation space and connected with the seat body, and the moving mechanism is detachably connected with the needle body; and

the needle sleeve is connected with the moving mechanism and provided with an accommodating space and an opening communicated with the accommodating space, at least part of the needle sleeve is elastic, and the needle sleeve can be used for being abutted to the sample to be detected;

the moving mechanism is configured to drive at least one of the needle body and the needle sleeve to move, so that the needle body is accommodated in the accommodating space through the opening.

2. The protective device of claim 1, wherein the needle guard comprises:

the wall surface of the inner side of the sleeve is surrounded to form the accommodating space, and one end of the sleeve is connected with the moving mechanism; and

the supporting piece has elasticity and is connected with the sleeve, and one end of the supporting piece, which is far away from the sleeve, is used for being abutted against the sample to be tested.

3. The protective device of claim 2, wherein the support member comprises:

the fixed bracket is connected with the sleeve; and

and the buffer block is connected with one end, far away from the sleeve, of the fixed support.

4. The protective device of claim 1, wherein the moving mechanism comprises:

the first moving mechanism is positioned in the installation space and is connected with the needle body; and

the second moving mechanism is located in the installation space, the second moving mechanism and the first moving mechanism are arranged in the direction perpendicular to the bearing surface, and the needle sleeve is connected with the second moving mechanism.

5. The protection device of claim 4,

the protection device further comprises a switching mechanism positioned in the installation space, the switching mechanism is positioned between the first moving mechanism and the second moving mechanism, the switching mechanism is connected with the first moving mechanism and the second moving mechanism, and the switching mechanism comprises a first switching state and a second switching state;

the switching mechanism drives the first moving mechanism to move along a first direction in the first switching state;

the switching mechanism drives the second moving mechanism to move along the first direction in the second switching state.

6. The protection device of claim 5, wherein the switching mechanism comprises:

the driving piece is connected with the seat body; and

the switching piece is connected with the driving piece, the switching piece is connected with the first moving mechanism in the first switching state, and the switching piece is connected with the second moving mechanism in the second switching state;

wherein the driving member is configured to drive the first moving mechanism to move in the first direction when the switching member is in the first switching state;

the driving member is configured to drive the second moving mechanism to move along the first direction when the switching member is in the second switching state.

7. The protective apparatus of claim 6, wherein the drive member comprises:

the screw rod is arranged along a direction parallel to the first direction and is rotationally connected with the base body;

the guide rod is arranged along the direction parallel to the first direction and is fixedly connected with the seat body; and

the driving block penetrates through the guide rod and is in threaded fit with the screw rod, and the driving block is in sliding fit with the switching piece.

8. The protection device of claim 7,

the end face of the driving block is provided with a sliding groove which is arranged along the direction vertical to the bearing surface, the switching piece comprises a sliding block which is in sliding fit with the sliding groove, the first moving mechanism is provided with a first clamping groove, and the second moving mechanism is provided with a second clamping groove;

the slider is in first switching state with first draw-in groove joint cooperation, the slider is in the second switching state with second draw-in groove joint cooperation.

9. The protective apparatus according to claim 7, wherein the housing comprises:

the bottom plate is provided with the bearing surface;

the supporting rod is positioned on one side of the bearing surface and is connected with the bottom plate;

the support plate is connected with one end of the support rod, which is far away from the bottom plate, the screw rod is rotatably connected with the support plate, and the guide rod is fixedly connected with the support plate;

the first support sliding rail is connected with one side of the support plate, which is far away from the bottom plate, and is in sliding fit with the first moving mechanism; and

and the second supporting slide rail is connected with one side, close to the bottom plate, of the supporting plate and is in sliding fit with the second moving mechanism.

10. The protection device of claim 5,

the first moving mechanism includes:

a first moving assembly for connecting with the switching mechanism in the first switching state;

the second moving assembly is in sliding fit with the first moving assembly along a second direction; and

the third moving component is in sliding fit with the second moving component along a third direction and is connected with the needle body;

the second moving mechanism includes:

a fourth moving assembly for connecting with the switching mechanism in the second switching state;

the fifth moving assembly is matched with the fourth moving assembly in a sliding mode along the second direction; and

the sixth moving assembly is in sliding fit with the fifth moving assembly along the third direction, and the needle sleeve is connected with the sixth moving assembly;

wherein the first direction, the second direction and the third direction are mutually perpendicular in pairs.

11. The protection device of claim 1,

the needle guard is provided with the opening arranged along the extending direction of the needle guard.

12. A detection apparatus, comprising:

the protection device of any one of claims 1-11;

the operation table is provided with an operation table surface for bearing the sample to be tested, and the protection device is arranged on the operation table surface.

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