Detection card limiting device

Abstract

The utility model provides a detection card limiting device, and relates to the technical field of clamps. The detection card limiting device comprises a bottom plate, two end plates (a first end plate and a second end plate) and two side plates (a first side plate and a second side plate), the two end plates are vertically arranged at the two ends of the bottom plate respectively, the two side plates are vertically arranged on the two sides of the bottom plate respectively, and the two end plates and the two side plates are mutually connected to define a clamping groove for containing a detection card with the bottom plate. A first collision bead is arranged on the inner side of the first end plate, and a second collision bead is arranged on the inner side of the first side plate; wherein the detection card is placed in the card slot and pressed downwards, the detection card extrudes the first collision bead and the second collision bead to enable the first collision bead and the second collision bead to contract inwards until the detection card is attached to the bottom plate, then the pressing force on the detection card is removed, the first collision bead rebounds and extrudes the detection card on the second end plate, and the second collision bead rebounds and extrudes the detection card on the second side plate. On the basis, the limiting effect on the detection card can be improved, and the smooth proceeding of the detection process and the accuracy of the detection result are ensured.

Description

Technical Field

[0001] This application relates to the field of fixture technology, and in particular to a detection card limiting device. Background Technology

[0002] Test cards (such as test strips, chip cards, and electronic test cards) are generally used for qualitative or quantitative analysis of specific substances or physical quantities, playing a vital role in many fields such as medical diagnosis, biochemical analysis, food safety testing, environmental monitoring, and industrial production. Typically, when inserting a test card into a testing device, a limiting device is used to prevent the card from shifting or loosening during testing, thus ensuring the accuracy of the test results.

[0003] In related technologies, the limiting device mainly uses two methods to limit the detection card. The first method is card slot fixing, which relies on the friction between the detection card and the card slot to fix the detection card. The detection card is easily dislodged due to vibration or external force, and the longer it is used, the more severe the wear and tear, and the positioning accuracy of the detection card will gradually decrease. The second method is spring clip clamping, which has a complex structure, occupies a large space, is difficult to miniaturize, and the disassembly and assembly of the detection card is also cumbersome, time-consuming and labor-intensive. Utility Model Content

[0004] This application provides a detection card limiting device, which aims to solve the problem that the limiting device in the related art has a poor limiting effect on the detection card, resulting in detection failure or inaccurate detection results.

[0005] To address the aforementioned drawbacks in related technologies, this application provides a detection card limiting device. This device includes a base plate, two end plates, and two side plates. The two end plates are respectively erected at opposite ends of the base plate, and the two side plates are respectively erected at opposite sides of the base plate. The end plates and side plates are interconnected, and the base plate, end plates, and side plates together form a slot. Each end plate includes a first end plate and a second end plate, and each side plate includes a first side plate and a second side plate. At least one first abutment bead is provided on the inner wall of the first end plate, and at least one second abutment bead is provided on the inner wall of the first side plate. The slot is used to accommodate the detection card, the first abutment bead is used to push the detection card towards the second end plate so that the detection card abuts against the second end plate, and the second abutment bead is used to push the detection card towards the second side plate so that the detection card abuts against the second side plate.

[0006] In some implementation schemes, the detection card limiting device includes not only the structure given above, but also a card housing. The card housing includes a base plate, two baffles, and two partitions. The two baffles are respectively erected at opposite ends of the base plate, and the two partitions are respectively erected on opposite sides of the base plate. The two baffles and two partitions are connected to each other. The base plate, the two baffles, and the two partitions enclose and form a receiving groove. The two baffles include a first baffle and a second baffle, and the two partitions include a first partition and a second partition. At least one first through hole communicating with the receiving groove is opened on the outer side wall of the first baffle, and at least one second through hole communicating with the receiving groove is opened on the outer side wall of the first partition. The receiving groove is used to hold the test card; the card slot is specifically used to hold the card shell. The base plate is attached to the bottom plate, the two baffles are attached to the two end plates respectively, the two partitions are attached to the two side plates respectively, at least one first through hole corresponds to at least one first contact bead, and at least one second through hole corresponds to at least one second contact bead; the first contact bead is specifically used to push the test card to the second baffle through the corresponding first through hole, so that the test card abuts against the second baffle; the second contact bead is specifically used to push the test card to the second partition through the corresponding second through hole, so that the test card abuts against the second partition.

[0007] In some implementations, the first contact ball includes one and is located in the middle of the first end plate; the second contact ball includes two, and the two second contact balls are respectively adjacent to the two end plates; the first through hole includes one and is located in the middle of the first baffle; the second through hole includes two, and the two second through holes are respectively adjacent to the two baffles.

[0008] In some implementation schemes, a card ejection hole is provided in the middle of the base plate to connect the card slot with the outside.

[0009] In some implementation schemes, the top walls of both side plates are formed with recessed pull-out grooves that extend towards the bottom plate. Both pull-out grooves are connected to the outside world, and the two pull-out grooves are located in the middle of the two side plates respectively.

[0010] In some implementations, an exposure groove is formed on the top wall of the second end plate, which is recessed toward the bottom plate. The exposure groove is located in the middle of the second end plate and connects the slot to the outside.

[0011] In some implementations, the detection card limiting device includes, in addition to the structure given above, a handle located on the outer side wall of the first end plate.

[0012] In some implementations, the handle includes a connecting plate and a handle body. One surface of the connecting plate is attached to the outer wall of the first end plate, and the handle body is located on the other surface of the connecting plate.

[0013] In some implementation schemes, one or more first receiving holes are formed on the inner sidewall of the first end plate, and one first receiving hole is used to accommodate one first ball; one or more second receiving holes are formed on the inner sidewall of the first side plate, and one second receiving hole is used to accommodate one second ball.

[0014] In some implementation schemes, the first contact ball includes a ball and a return spring. The return spring is located in the first receiving hole, and the ball is located at the opening of the first receiving hole. One end of the return spring abuts against the ball, and the other end is fixed to the wall of the first receiving hole. The structure of the second contact ball is the same as that of the first contact ball.

[0015] The detection card limiting device provided in this application consists of a base plate, two end plates (a first end plate and a second end plate), and two side plates (a first side plate and a second side plate). The two end plates are respectively erected at opposite ends of the base plate, and the two side plates are respectively erected at opposite sides of the base plate. The two end plates and the two side plates are connected to each other to form a card slot for accommodating the detection card. At least one first abutment bead is provided on the inner side wall of the first end plate, and at least one second abutment bead is provided on the inner side wall of the first side plate. In practical applications, the user can insert the detection card into the card slot and press the detection card downwards (i.e., towards the base plate). The detection card will squeeze the first and second abutment beads, causing them to retract until the detection card is in contact with the base plate. Then, the user can remove the pressure on the detection card. The first abutment bead will spring back and push the detection card towards the second end plate to press the detection card onto the second end plate. The second abutment bead will also spring back and push the detection card towards the second side plate to press the detection card onto the second side plate, thus fixing the detection card in the card slot. Understandably, relying on the elastic force of the first and second contact balls upon rebound, as well as the surface contact between the second end plate, the second side plate, and the detection card, this application can firmly clamp the detection card in the card slot. Compared to the traditional solution that relies on the friction between the detection card and the card slot to fix the detection card, the detection card of this application will not fall off due to vibration or external force, thus avoiding the interruption of the detection process caused by the detection card falling off, and also avoiding the situation where the wear becomes more severe with the longer the service time (i.e., the positioning accuracy of the detection card gradually decreases), thereby ensuring the accuracy of the detection results and providing a better overall limiting effect for the detection card. Compared to the spring clip clamping in the traditional solution, the limiting device of this application has a simple structure, occupies less space, and is more conducive to the miniaturization of the limiting device. At the same time, the disassembly and assembly of the detection card is also very simple. Attached Figure Description

[0016] To more clearly illustrate the related technologies or the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the related technologies or the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application, and not all embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the detection card limiting device provided in the embodiments of this application;

[0018] Figure 2 Another structural schematic diagram of the detection card limiting device provided in the embodiments of this application.

[0019] The labels in the above figures represent: 1-base plate, 2-end plate, 3-side plate, 4-slot, 5-first contact ball, 6-second contact ball, 7-slot, 8-handle, 11-removal hole, 21-first end plate, 22-second end plate, 221-exposed groove, 31-first side plate, 32-second side plate, 33-removal slot, 311-second receiving hole, 71-base plate, 72-baffle, 73-partition, 721-first baffle, 731-first partition, 7211-first through hole, 7311-second through hole, 81-connecting plate, 82-handle body. Detailed Implementation

[0020] In related technologies, the limiting device for limiting the detection card includes two methods. The first is card slot fixing, which relies on the friction between the detection card and the card slot to fix the detection card. However, the detection card is easily dislodged due to vibration or external force, and the longer it is used, the more severe the wear and tear, and the positioning accuracy of the detection card will gradually decrease. The second is spring clip clamping, which has a complex structure, occupies a large space, is difficult to miniaturize, and the disassembly and assembly of the detection card is also relatively cumbersome. In view of this, the present application proposes a detection card limiting device in the embodiments below to solve the above-mentioned drawbacks of the related technologies.

[0021] To make the objectives, technical solutions, and advantages of this application more apparent and understandable, this application will be clearly and completely described below in conjunction with its embodiments and corresponding drawings. Throughout, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. It should be understood that the embodiments of this application described below are only for explaining this application and are not intended to limit this application. That is, all other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0022] Please see Figure 1 , Figure 1 This is a schematic diagram of a detection card limiting device. This embodiment provides a detection card limiting device, which includes a base plate 1, two end plates 2, and two side plates 3. The two end plates 2 are respectively erected at opposite ends of the base plate 1, and the two side plates 3 are respectively erected at opposite sides of the base plate 1. The two end plates 2 and the two side plates 3 are connected to each other. The base plate 1, the two end plates 2, and the two side plates 3 enclose a slot 4. The two end plates 2 include a first end plate 21 and a second end plate 22, and the two side plates 3 include a first side plate 31 and a second side plate 32. At least one first contact bead 5 is provided on the inner wall of the first end plate 21, and at least one second contact bead 6 is provided on the inner wall of the first side plate 31. It should be noted that the number of first contact beads 5 and their distribution on the first end plate 21, as well as the number of second contact beads 6 and their distribution on the first side plate 31, are all designed according to actual needs, and this embodiment does not impose a unique limitation on them; for example, the first contact bead 5 includes one and is located in the middle of the first end plate 21, and the second contact bead 6 includes two, with the two second contact beads 6 respectively adjacent to the two end plates 2 on the first side plate 31.

[0023] In this embodiment, at least one first receiving hole (not shown in the figure) is provided on the inner sidewall of the first end plate 21. Each first receiving hole is used to accommodate one first contact ball 5, that is, the number of first receiving holes and first contact balls 5 are equal and correspond one-to-one. Similarly, at least one second receiving hole 311 is provided on the inner sidewall of the first side plate 31. Each second receiving hole 311 is used to accommodate one second contact ball 6, that is, the number of second receiving holes 311 and second contact balls 6 are equal and correspond one-to-one. It can be understood that in this embodiment, the first contact ball 5 is placed in the first receiving hole and the second contact ball 6 is placed in the second receiving hole 311. On the one hand, this improves the aesthetics of the detection card limiting device. On the other hand, it ensures that the first contact ball 5 and the second contact ball 6 do not occupy too much space in the card slot 4, and avoids the first contact ball 5 and the second contact ball 6 protruding too much into the card slot 4, which would affect the subsequent insertion of the detection card into the card slot 4.

[0024] In this embodiment, the first contact ball 5 and the second contact ball 6 have the same structure. Taking the first contact ball 5 as an example, it includes a ball (not shown in the figure), a return spring (not shown in the figure), and a shell with an opening (not shown in the figure). The return spring is disposed in the shell, and the ball is disposed at the opening of the shell. One end of the return spring abuts against the ball, and the other end is fixed to the inner wall of the shell. This is a relatively mature technology in the field, so this embodiment will not describe it in detail. In addition, it should be noted that, still taking the first contact ball 5 as an example, since the first contact ball 5 is disposed in the first receiving hole, the shell can be omitted and the hole wall of the first receiving hole can be used as the shell. That is, the first contact ball 5 can only include the ball and the return spring. The return spring is disposed in the first receiving hole, and the ball is disposed at the opening of the first receiving hole. One end of the return spring abuts against the ball, and the other end is fixed to the hole wall of the first receiving hole. In this way, the number of parts can be effectively reduced, the structure of the detection card limiting device can be simplified, and its manufacturing cost can be reduced.

[0025] In this embodiment, the card slot 4 is used to accommodate the detection card, the first abutment 5 is used to push the detection card towards the second end plate 22 so that the detection card abuts against the second end plate 22, and the second abutment 6 is used to push the detection card towards the second side plate 32 so that the detection card abuts against the second side plate 32. That is to say, in practical applications, the user can put the detection card into the card slot 4 and press the detection card downward (i.e. towards the bottom plate 1). The detection card will squeeze the first abutment 5 and the second abutment 6 to retract inward (at this time, the return spring is compressed) until the detection card is in contact with the bottom plate 1. Then the user can remove the pressure on the detection card so that the first abutment 5 rebounds under the elastic force of the return spring and pushes the detection card towards the second end plate 22, thereby pressing the detection card onto the second end plate 22. At the same time, the second abutment 6 will also rebound under the elastic force of the return spring and push the detection card towards the second side plate 32, thereby pressing the detection card onto the second side plate 32. In this way, the detection card can be fixed in the card slot 4. It is understood that in this embodiment, the detection card is firmly pressed onto the second end plate 22 and the second side plate 32 by the rebound of the first contact ball 5 and the second contact ball 6. At this time, there is surface contact between the detection card and the second end plate 22 and between the detection card and the second side plate 32, and the contact area is relatively large, so as to optimize the clamping effect on the detection card.

[0026] As can be seen from the above, compared with the traditional solution that relies on the friction between the detection card and the card slot 4 to fix the detection card, the detection card in this embodiment will not fall off due to vibration or external force, thus avoiding the interruption of the detection process caused by the detection card falling off, and also avoiding the situation that the wear becomes more serious with the longer the use time (i.e., the positioning accuracy of the detection card gradually decreases), thereby ensuring the accuracy of the detection results and the overall limiting effect of the detection card is better; compared with the spring clip clamping of the traditional solution, this embodiment has a simple structure, occupies less space, and is more conducive to miniaturization, while the disassembly and assembly of the detection card is also very simple.

[0027] In some embodiments, please combine Figure 2 , Figure 2 Another schematic diagram of the detection card limiting device is shown. In addition to the structure given above, the detection card limiting device also includes a card housing 7. The card housing 7 includes a base plate 71, two baffles 72 and two partitions 73. The two baffles 72 are respectively erected at opposite ends of the base plate 71, and the two partitions 73 are respectively erected on opposite sides of the base plate 71. The two baffles 72 and the two partitions 73 are connected to each other. The base plate 71, the two baffles 72 and the two partitions 73 form a receiving groove (not shown). The two baffles 72 include a first baffle 721 and a second baffle (not shown). The two partitions 73 include a first partition 731 and a second partition (not shown). At least one first through hole 7211 is opened on the outer wall of the first baffle 721, and at least one second through hole 7311 is opened on the outer wall of the first partition 731. Each first through hole 7211 and each second through hole 7311 connects the receiving groove to the external space.

[0028] Specifically, the card slot 4 is actually used to accommodate the card housing 7, and the detection card is actually placed in the card housing 7. That is to say, during the limiting process of the detection card, the detection card is not placed directly in the card slot 4, but indirectly in the card slot 4 through the card housing 7. When the card housing 7 is placed in the card slot 4, the base plate 71 is attached to the bottom plate 1, the two baffles 72 are attached to the two end plates 2 respectively, and the two partitions 73 are attached to the two side plates 3 respectively. Moreover, at least one first through hole 7211 on the first baffle 721 corresponds one-to-one with at least one first contact bead 5 on the first end plate 21, and at least one second through hole 7311 on the first partition 731 corresponds one-to-one with at least one second contact bead 6 on the first side plate 31. It can be seen that the number of first through holes 7211, first contact beads 5 and first receiving holes are equal and correspond one-to-one, and the number of second through holes 7311, second contact beads 6 and second receiving holes 311 are also equal and correspond one-to-one. Furthermore, it should be noted that the number of first through holes 7211 and their distribution on the first baffle 721, as well as the number of second through holes 7311 and their distribution on the first partition 731, are all designed according to actual needs, and this application does not impose a unique limitation on them; for example, the first through hole 7211 includes one and is located in the middle of the first baffle 721, and the second through hole 7311 includes two, with the two second through holes 7311 respectively adjacent to the two baffles 72 on the first partition 731.

[0029] Furthermore, the first contact ball 5 is specifically used to push the detection card towards the second baffle through the corresponding first through hole 7211, so that the detection card abuts against the second baffle; the second contact ball 6 is specifically used to push the detection card towards the second partition through the corresponding second through hole 7311, so that the detection card abuts against the second partition. That is, in practical applications, the user can first place the detection card into the card holder 7 (i.e., into the receiving slot), and then place the card holder 7 into the card slot 4 and press the card holder 7 downwards (i.e., towards the base plate 1). The card holder 7 will squeeze the first contact ball 5 and the second contact ball 6, causing them to retract (at this time, the return spring is compressed) until the base plate 71 of the card holder 7 is in contact with the base plate 1. At this point, the first contact ball 5, because it is aligned with the first through hole 7211 on the card holder 7, is no longer squeezed by the card holder 7, and the second contact ball 6, because it is aligned with the second through hole 7311 on the card holder 7, is no longer squeezed by the card holder 7. Under the pressure of the retaining housing 7, the first contact ball 5 rebounds under the elastic force of the return spring and enters the retaining housing 7 through the first through hole 7211, pushing the detection card against the second baffle of the retaining housing 7, thus pressing the detection card against the second baffle of the retaining housing 7. Simultaneously, the second contact ball 6 rebounds under the elastic force of the return spring and enters the retaining housing 7 through the second through hole 7311, pushing the detection card against the second partition of the retaining housing 7, thus pressing the detection card against the second partition of the retaining housing 7. This achieves the fixation of the detection card within the retaining housing 7. It can be understood that since the detection card is actually indirectly placed in the card slot 4 through the retaining housing 7, this application effectively uses the rebound of the first contact ball 5 and the second contact ball 6 to firmly press the detection card against the second baffle and the second partition of the retaining housing 7. At this time, there is surface contact between the detection card and the second baffle, and between the detection card and the second partition, with a relatively large contact area, thus optimizing the clamping effect on the detection card.

[0030] In some embodiments, please refer to Figure 1 and Figure 2The base plate 1 has a card ejection hole 11 that connects the card slot 4 to the external space. The card ejection hole 11 is located in the middle of the base plate 1. It can be understood that in practical applications, taking the test card indirectly placed in the card slot 4 through the card housing 7 as an example, after the test of the test card is completed, the card housing 7 needs to be removed from the card slot 4. At this time, the user's finger can press against the base plate 71 of the card housing 7 through the card ejection hole 11 and apply an upward force to the base plate 71, so that the card housing 7 has an upward tendency to move. At the same time, under the guidance of the first through hole 7211 and the second through hole 7311 on the card housing 7, the first contact ball 5 and the second contact ball 6 will be squeezed inward by the card housing 7. The first contact ball 5 and the second contact ball 6 will eventually exit the first through hole 7211 and the second through hole 7311 on the card housing 7, thus realizing the separation of the card housing 7 from the first contact ball 5 and the second contact ball 6. At this time, the card housing 7 is no longer restricted by the first contact ball 5 and the second contact ball 6. It should be noted that the edge of the first through hole 7211 on the retaining 7 can be rounded so that it can cooperate with the first ball bearing 5 to allow the first ball bearing 5 to smoothly enter / exit the first through hole 7211; correspondingly, the edge of the second through hole 7311 on the retaining 7 can also be rounded so that it can cooperate with the second ball bearing 6 to allow the second ball bearing 6 to smoothly enter / exit the second through hole 7311.

[0031] In one embodiment, each of the two side plates 3 has a recessed pull-out groove 33 on its top wall, pointing towards the bottom plate 1. The two pull-out grooves 33 are located in the middle of each side plate 3, and each pull-out groove 33 connects the slot 4 to the external space. It is understood that in practical applications, after the retaining hole 11 separates the retaining case 7 from the first contact ball 5 and the second contact ball 6, the user's fingers can press against the opposite sides of the retaining case 7 (i.e., the outer walls of the two partitions 73) through the two pull-out grooves 33 to grasp the retaining case 7, and then apply force to pull the retaining case 7 out of the slot 4. Furthermore, it should be noted that the retaining hole 11 can actually be omitted; the user can directly grasp the retaining case 7 through the two pull-out grooves 33 and pull it upwards, achieving separation of the retaining case 7 from the first contact ball 5 and the second contact ball 6 in the same process.

[0032] In another embodiment, an exposure groove 221 recessed towards the bottom plate 1 is formed on the top wall of the second end plate 22. The exposure groove 221 is located in the middle of the second end plate 22 and connects the card slot 4 with the external space. It is understood that in practical applications, after the card holder 7 is separated from the first contact ball 5 and the second contact ball 6 through the card ejection hole 11, the user's finger can press against the outer wall of the second baffle in the card holder 7 through the exposure groove 221, and then apply force to pry up the end of the card holder 7 adjacent to the exposure groove 221, so as to remove the card holder 7 from the card slot 4. Furthermore, it should be noted that the card ejection hole 11 can actually be omitted. The user can directly press against the end of the card holder 7 adjacent to the exposure groove 221 through the exposure groove 221, and then flip the end of the card holder 7 adjacent to the exposure groove 221 to the other end, so that the end of the card holder 7 adjacent to the exposure groove 221 is pried up. This process also achieves the separation of the card holder 7 from the first contact ball 5 and the second contact ball 6.

[0033] As can be seen from the above, based on the guidance of the first through hole 7211 and the second through hole 7311 on the card housing 7, as well as the setting of the card ejection hole 11, the card removal groove 33, the exposure groove 221 and other structures, the detection card limiting device of this application can meet the user's need to disassemble and install the detection card with one hand, and the disassembly and assembly efficiency of the detection card is higher.

[0034] In some embodiments, please refer to Figure 1 and Figure 2 In addition to the structure described above, the detection card limiting device also includes a handle 8, which is disposed on the outer side wall of the first end plate 21. It is understood that the purpose of the handle 8 is to facilitate the user's movement of the detection card limiting device by hand. Since the handle 8 is a relatively mature technology in the field, this application will not describe it in detail. Exemplarily, the handle 8 includes a connecting plate 81 and a handle body 82. One surface of the connecting plate 81 is in contact with the outer side wall of the first end plate 21, and the handle body 82 is disposed on the other surface of the connecting plate 81.

[0035] The above embodiments are merely preferred implementations of this application and are not the only limitations on the detection card limiting device. Those skilled in the art can flexibly customize these embodiments based on actual application scenarios. It is understood that through the implementation of the above embodiments of this application, a detection card limiting device is constructed using a base plate 1, two end plates 2 (first end plate 21 and second end plate 22), and two side plates 3 (first side plate 31 and second side plate 32). The two end plates 2 are respectively erected at opposite ends of the base plate 1, and the two side plates 3 are respectively erected at opposite sides of the base plate 1. The two end plates 2 and the two side plates 3 are interconnected to form a card slot 4 for accommodating the detection card, together with the base plate 1. At least one first contact bead 5 is provided on the inner wall of the first end plate 21, and at least one second contact bead 6 is provided on the inner wall of the first side plate 31. In practical applications, the user can insert the detection card into the card slot 4 and press the detection card downwards (i.e. towards the base plate 1). The detection card will squeeze the first contact ball 5 and the second contact ball 6 to retract them until the detection card is in contact with the base plate 1. Then the user can remove the pressure on the detection card. The first contact ball 5 will spring back and push the detection card towards the second end plate 22 to press the detection card onto the second end plate 22. The second contact ball 6 will also spring back and push the detection card towards the second side plate 32 to press the detection card onto the second side plate 32. In this way, the detection card can be fixed in the card slot 4. Understandably, relying on the spring force of the first contact ball 5 and the second contact ball 6 when they rebound, as well as the surface contact between the second end plate 22, the second side plate 32 and the detection card, this application can firmly clamp the detection card in the card slot 4. Compared with the traditional solution that relies on the friction between the detection card and the card slot 4 to fix the detection card, the detection card of this application will not fall off due to vibration or external force, thus avoiding the interruption of the detection process caused by the detection card falling off, and will not experience the situation that the wear becomes more serious with the longer the service time (i.e., the positioning accuracy of the detection card gradually decreases), thereby ensuring the accuracy of the detection results and providing a better overall limiting effect for the detection card. Compared with the spring clip clamping in the traditional solution, the limiting device of this application has a simple structure, occupies less space, and is more conducive to the miniaturization of the limiting device. At the same time, the disassembly and assembly of the detection card is also very simple.

[0036] It should be noted that the several embodiments shown above in this application are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. It should also be noted that in the textual description of this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply such an actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements may include not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus; and, without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Furthermore, those skilled in the art can implement or use this application by practicing the several embodiments shown above. Various modifications to the embodiments shown above will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments not shown without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the several embodiments shown above, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A detection card limiting device, characterized in that, The device includes a base plate, two end plates, and two side plates. The two end plates are respectively erected at opposite ends of the base plate, and the two side plates are respectively erected on opposite sides of the base plate. The two end plates and the two side plates are connected to each other. The base plate, the two end plates, and the two side plates form a slot. The two end plates include a first end plate and a second end plate, and the two side plates include a first side plate and a second side plate. At least one first contact bead is provided on the inner side wall of the first end plate, and at least one second contact bead is provided on the inner side wall of the first side plate. The slot is used to accommodate the detection card; the first contact ball is used to push the detection card toward the second end plate, so that the detection card abuts against the second end plate; the second contact ball is used to push the detection card toward the second side plate, so that the detection card abuts against the second side plate.

2. The limiting device according to claim 1, characterized in that, It also includes a retaining shell, which includes a base plate, two baffles and two partitions. The two baffles are respectively erected at opposite ends of the base plate, and the two partitions are respectively erected on opposite sides of the base plate. The two baffles and the two partitions are connected to each other. The base plate, the two baffles and the two partitions form a receiving groove. The two baffles include a first baffle and a second baffle. The two partitions include a first partition and a second partition. The outer side wall of the first baffle has at least one first through hole communicating with the receiving groove. The outer side wall of the first partition has at least one second through hole communicating with the receiving groove. The receiving groove is used to accommodate the detection card; the card slot is specifically used to accommodate the card shell, the base plate is attached to the bottom plate, the two baffles are respectively attached to the two end plates, the two partitions are respectively attached to the two side plates, the at least one first through hole corresponds to the at least one first contact bead, and the at least one second through hole corresponds to the at least one second contact bead. The first contact ball is specifically used to push the detection card towards the second baffle through the corresponding first through hole, so that the detection card abuts against the second baffle; The second contact ball is specifically used to push the detection card toward the second partition through the corresponding second through hole, so that the detection card abuts against the second partition.

3. The limiting device according to claim 1 or 2, characterized in that, The first contact ball is one in number and is located in the middle of the first end plate; The second contact ball comprises two balls, each adjacent to one of the two end plates; The first through hole includes one hole, and the first through hole is located in the middle of the first baffle. The second through hole includes two, and the two second through holes are respectively adjacent to the two baffles.

4. The limiting device according to claim 1 or 2, characterized in that, The base plate has a card ejection hole that connects the card slot to the outside, and the card ejection hole is located in the middle of the base plate.

5. The limiting device according to claim 1 or 2, characterized in that, Both side plates have recessed card slots on their top walls that extend toward the bottom plate. Both card slots are connected to the outside. The two card slots are located in the middle of the two side plates respectively.

6. The limiting device according to claim 1 or 2, characterized in that, An exposure groove is formed on the top wall of the second end plate, which is recessed toward the bottom plate and connects the slot to the outside.

7. The limiting device according to claim 1 or 2, characterized in that, It also includes a handle, which is located on the outer side wall of the first end plate.

8. The limiting device according to claim 7, characterized in that, The handle includes a connecting plate and a handle body. One surface of the connecting plate is attached to the outer side wall of the first end plate, and the handle body is disposed on the other surface of the connecting plate.

9. The limiting device according to claim 1 or 2, characterized in that, The inner wall of the first end plate is provided with at least one first receiving hole, which is used to accommodate one first ball; the inner wall of the first side plate is provided with at least one second receiving hole, which is used to accommodate one second ball.

10. The limiting device according to claim 9, characterized in that, The first ball joint includes a ball and a return spring. The return spring is disposed in the first receiving hole, and the ball is disposed at the opening of the first receiving hole. One end of the return spring abuts against the ball, and the other end is fixed to the hole wall of the first receiving hole. The structure of the second ball joint is the same as that of the first ball joint.

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