Quick release mechanism and cart

Abstract

The utility model provides a quick release mechanism and a cart, and relates to the field of medical instrument fixing structures. The quick release mechanism comprises a quick release base, a locking assembly and a fixing part; the fixing part is arranged on to-be-fixed equipment; or the fixing part is mounted on the to-be-fixed equipment; the quick release base comprises a base plate, a first limiting piece and a second limiting piece, and the first limiting piece and the second limiting piece are both installed on the base plate and are oppositely arranged; the locking assembly comprises a locking piece and a key, the locking piece and the key are both installed on the second limiting piece, the locking piece is in sliding fit with the second limiting piece and extends out of the side wall, opposite to the first limiting piece, of the second limiting piece, one side of the fixing part is in limiting fit with the first limiting piece, and the other side of the fixing part is in limiting fit with the locking piece; the key is in transmission connection with the locking piece, and the key is pressed to control the locking piece to retract into the second limiting piece. According to the quick dismounting mechanism, the technical problems that in the prior art, when a medical instrument is fixed to a cart or an ambulance or the like, the mounting efficiency is low, and the dismounting process is complex are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical instrument fixing structure, in particular to a quick release mechanism and a cart. BACKGROUND

[0002] The existing medical instrument needs to be fixed on a cart or an ambulance before being transported; the prior art uses a quick locking device to fix the medical instrument on the cart or the ambulance; the quick locking device comprises a base assembly fixed on a bearing surface and a mounting block assembly fixed on the medical instrument, the base assembly comprises a base, and the mounting block assembly comprises a mounting block, the mounting block is fixed on the threaded hole at the bottom of the medical instrument through screws or other fasteners. The base is provided with a fixing hole, and the base is fixed on the ambulance, the cart or other suitable mounting position by passing the screws or other fasteners through the fixing hole. The base is provided with a mounting hole for inserting the mounting block, and the outer side wall of the mounting block is provided with a clamping groove, and the base is provided with a sliding locking block which can be clamped into the clamping groove, so that the sliding locking block can lock the mounting block in the mounting hole to achieve the locking and fixing of the medical instrument.

[0003] However, the above locking device has the following problems: a, the device cannot be installed blindly, and the operator needs to accurately align the four hole positions, which not only increases the installation difficulty, but also reduces the installation efficiency; b, the device disassembly process is complicated, the operator must control the handle with one hand and lift the device with the other hand, which is time-consuming and laborious, and is easy to cause the operator to be tired, in addition, the installation and disassembly direction of the device is strictly limited to the up-down direction (the device must be completely lifted to complete the disassembly), which limits the applicability of the device in different scene spaces. c, the device lacks universality and cannot be adapted to other medical devices (the spacing and position of the support columns at the bottom of different medical instruments are different, the device needs to be specifically drilled. Or the device can be designed with a universal support column bottom plate installed at the bottom of the medical device, although it can be universal, but this operation will increase the overall height of the medical device, which is not allowed under some medical device regulations), which limits its application range in different medical devices. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiment of the present application is to provide a quick release mechanism and a cart to alleviate the technical problems of low installation efficiency and complicated disassembly process when the medical instrument is fixed on the cart or the ambulance in the prior art.

[0005] In order to solve the above technical problems, the technical scheme provided by the present application is:

[0006] In a first aspect, the quick release mechanism provided by the present application comprises a quick release base, a locking assembly and a fixing part.

[0007] The fixing part is arranged on the equipment to be fixed, or the fixing part is mounted on the equipment to be fixed.

[0008] The quick release base comprises a base plate, a first limiting member and a second limiting member, the first limiting member and the second limiting member are both mounted on the base plate, and are oppositely arranged.

[0009] The locking assembly comprises a locking member and a button, the locking member and the button are both mounted on the second limiting member, the locking member is in sliding fit with the second limiting member and protrudes from the side wall of the second limiting member opposite to the first limiting member, one side of the fixing part is in limiting fit with the first limiting member, and the other side is in limiting fit with the locking member.

[0010] The button is in transmission connection with the locking member, and the button is pressed to control the locking member to retract into the second limiting member.

[0011] Further, one end of the button is in transmission connection with the locking member, and the other end of the button protrudes from the side wall of the second limiting member away from the first limiting member, and the button is in sliding fit with the second limiting member.

[0012] Further, a first elastic member is mounted between the locking member and the side wall of the second limiting member away from the first limiting member, and a second elastic member is mounted between the button and the side wall of the second limiting member close to the first limiting member.

[0013] Further, the button and the locking member are connected through a transmission assembly.

[0014] The bottom wall of the locking member is provided with a driving rod, the transmission assembly comprises a connecting rod and a fixing member, the connecting rod and the fixing member are both located inside the second limiting member, one end of the connecting rod is in fit with the button, the other end of the connecting rod is in fit with the driving rod of the locking member, and the connecting rod is located on the side of the button and the driving rod close to the first limiting member.

[0015] The fixing member is located between the button and the locking member, and is connected with the base plate through the connecting rod, and the connecting rod can rotate around the fixing member.

[0016] Further, a locking channel and a control channel are formed between the second limiting member and the base plate, and the base plate is provided with a communication channel, the locking member is located in the locking channel and is in sliding fit with the locking channel, the button is located in the control channel and is in sliding fit with the control channel, the communication channel is in communication with the locking channel and the control channel, and the connecting rod is located in the communication channel.

[0017] Further, the side wall of the locking member is provided with a first guide protrusion, the inner wall of the locking channel is provided with a first guide groove, and the first guide protrusion is inserted into the first guide groove and is in sliding fit with the first guide groove.

[0018] The side wall of the key is provided with a second guide protrusion, the inner wall of the control channel is provided with a second guide groove, and the second guide protrusion is inserted into the second guide groove and is in sliding fit with the second guide groove.

[0019] Further, the second limiting member comprises a limiting shell and a limiting plate.

[0020] The base plate is provided with a first groove and a second groove, and the communication channel is in communication with the first groove and the second groove.

[0021] The limiting shell is mounted on the base plate, the limiting plate is arranged on the side wall of the limiting shell away from the first limiting member, and is provided with a second opening.

[0022] The limiting shell is provided with a third groove, a fourth groove and a first opening, the third groove is opposite to the first groove and is in communication with the first opening to form a locking channel, and the fourth groove is opposite to the second groove and is in communication with the second opening to form the control channel.

[0023] Further, the upper surface of the locking member is provided with a guide surface, and the guide surface is inclined from top to bottom towards the first limiting member.

[0024] Further, a limiting groove is formed between the first limiting member and the base plate, and the fixing portion is clamped with the limiting groove.

[0025] In a second aspect, the utility model provides a cart, which comprises a roller, a chassis, a stand, a fixing frame and a quick release mechanism as any one of the above.

[0026] The roller is mounted at the bottom of the chassis, the stand is mounted at the top of the chassis, the fixing frame is fixed to the stand or the chassis, and the quick release base of the quick release mechanism is mounted on the fixing frame.

[0027] In combination with the above technical solutions, the technical effects achieved by the utility model are analyzed as follows.

[0028] The quick release mechanism provided by the utility model includes quick release base, locking assembly and fixed part; the fixed part is arranged on the equipment to be fixed; or, the fixed part is installed on the equipment to be fixed; the quick release base includes substrate, first limiting piece and second limiting piece, the first limiting piece and the second limiting piece are both installed on the substrate, and are oppositely arranged; the locking assembly includes locking piece and button, the locking piece and the button are both installed on the second limiting piece, the locking piece is in sliding fit with the second limiting piece and protrudes from the side wall opposite to the first limiting piece of the second limiting piece, one side of the fixed part is in limiting fit with the first limiting piece, and the other side is in limiting fit with the locking piece; the button is in transmission connection with the locking piece, and the button is pressed to control the locking piece to retract into the second limiting piece.

[0029] Wherein, the fixed part arranged on the equipment to be fixed means that the fixed part is integrally formed with the equipment to be fixed, that is, the equipment to be fixed is provided with the fixed part; the fixed part installed on the equipment to be fixed means that the fixed part and the equipment to be fixed are two structures, and the fixed part can be installed on the equipment to be fixed, for example, the fixed part can be detachably connected to the equipment to be fixed by using screws or buckles, the fixed part can be adhesively connected to the equipment to be fixed by using adhesive, or the fixed part can be welded to the equipment to be fixed.

[0030] The use steps of the quick release mechanism include:

[0031] The locking process: the equipment to be fixed is placed above the quick release base, one side of the fixed part is in limiting fit with the first limiting piece, and the other side of the fixed part naturally falls, the locking piece retracts into the second limiting piece, after the fixed bottom plate is located between the locking piece and the substrate, the locking piece protrudes from the second limiting piece, and the fixed bottom plate is clamped between the locking piece and the substrate.

[0032] The unlocking process: the button is pressed and kept in the pressed state, one side of the fixed part matched with the first limiting piece is used as a fulcrum, and the front half is lifted; the button is released to separate the fixed part from the first limiting piece.

[0033] The quick release mechanism has simple locking mode and high installation efficiency; the unlocking mode is simple, the dismounting efficiency is high, the equipment to be fixed does not need to be completely lifted to be dismounted, the dismounting difficulty is reduced; in addition, the quick release mechanism is limited and locked by the first limiting piece and the locking assembly, can be applied to different types and sizes of equipment to be fixed, and the application range is expanded. ACCURACY OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0035] Figure 1 The structure of the quick release mechanism provided by the embodiments of the present applicationFigure One ;

[0036] Figure 2 Structure diagram of quick release mechanism provided for the embodiment of the present application Figure Two ;

[0037] Figure 3 Structure diagram of quick release mechanism provided for the embodiment of the present application Figure Three (unlocked fixed bottom plate)

[0038] Figure 4 Internal structure diagram of quick release mechanism provided for the embodiment of the present application Figure One ;

[0039] Figure 5 Structure diagram of quick release mechanism provided for the embodiment of the present application Figure Four ;

[0040] Figure 6 Internal structure diagram of quick release mechanism provided for the embodiment of the present application Figure Two ;

[0041] Figure 7 Exploded view of quick release mechanism provided for the embodiment of the present application

[0042] Figure 8 Structure diagram of locking assembly in quick release mechanism provided for the embodiment of the present application

[0043] Figure 9 Structure diagram of stroller provided for the embodiment of the present application Figure One ;

[0044] Figure 10 Structure diagram of stroller provided for the embodiment of the present application Figure Two .

[0045] Icon:

[0046] 100-quick release base; 110-base plate; 111-first recess; 112-second recess; 113-connection hole; 114-communication passage; 120-first limiting piece; 130-second limiting piece; 131-limiting shell; 1311-third recess; 1312-fourth recess; 132-limiting plate; 1321-second opening; 140-limiting groove; 150-locking passage; 160-control passage; 170-first elastic piece; 180-second elastic piece; 190-limiting block

[0047] 200-locking assembly; 210-locking piece; 211-first guide protrusion; 212-guide surface; 213-driving rod; 220-key; 221-second guide protrusion; 230-connection rod; 240-fixing piece

[0048] 310 - roller; 320 - chassis; 330 - stand; 340 - storage basket; 350 - holder; 360 - handle;

[0049] 400 - device to be fixed; 410 - fixing base plate. DETAILED DESCRIPTION

[0050] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0051] In the description of the present application, it should be noted that the positions or location relations indicated by the terms "inner", "outer" and the like are based on the positions or location relations shown in the drawings, or the positions or location relations of the products of the present application when they are usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] As the number of older mothers increases, the proportion of critically ill premature babies born also increases. Therefore, a hierarchical referral system is established with regional children's medical centers as network nodes. Inter-hospital transfer of premature babies is becoming more common, and the distance is increasing, and the demand for transfer of some medical equipment is increasing. Existing medical equipment needs to be fixed on a cart or ambulance during transfer. In the prior art, a quick locking device is used to fix the medical equipment on a cart or ambulance; the quick locking device includes a base assembly that can be fixed to a bearing surface and a mounting block assembly that can be fixed to the medical equipment, the base assembly includes a base, and the mounting block assembly includes a mounting block, the mounting block can be fixed to the threaded hole at the bottom of the medical equipment by screws or other fasteners. A fixing hole is formed in the base, and a screw or other fastener can pass through the fixing hole to fix the base to an ambulance, a cart, or other suitable mounting position. The base is provided with a mounting hole for the mounting block to insert, and the outer side wall of the mounting block is provided with a clamping groove, and the base is provided with a sliding locking block that can be clamped into the clamping groove. In this way, the sliding locking block can lock the mounting block in the mounting hole to achieve locking and fixing of the medical equipment. However, the above locking device has the following problems: a. The device cannot be installed blindly, and the operator needs to accurately align the four hole positions, which not only increases the installation difficulty but also reduces the installation efficiency; b. The device disassembly process is complicated, and the operator must control the handle with one hand and lift the device with the other hand. This operation method is time-consuming and laborious, and is easy to cause the operator to be tired, in addition, the installation and disassembly direction of the device is strictly limited to the up-down direction (the device must be completely lifted to complete disassembly), which limits the applicability of the device in different scene spaces. c. The device lacks universality and cannot adapt to other medical devices (the spacing and position of the support columns at the bottom of different medical instruments are different, and the device needs to be specifically drilled. Or the device can be designed with a universal bottom plate with support columns, which is installed at the bottom of the medical device. Although it can achieve universality, this operation will increase the overall height of the medical device, which is not allowed under some medical equipment regulations), which limits its application range in different medical devices.

[0054] Therefore, see Figures 1 to 8The quick release mechanism provided by the embodiment of the utility model includes quick release base 100, locking assembly 200 and fixed part, the fixed part is arranged on the equipment to be fixed 400, or the fixed part is installed on the equipment to be fixed 400, the quick release base 100 includes base plate 110, first limiting piece 120 and second limiting piece 130, first limiting piece 120 and second limiting piece 130 are all installed on base plate 110, and are oppositely arranged, locking assembly 200 includes locking piece 210 and button 220, locking piece 210 and button 220 are all installed on second limiting piece 130, locking piece 210 is slidably connected with second limiting piece 130 and protrudes from the side wall opposite to first limiting piece 120 of second limiting piece 130, one side of the fixed part is limitingly connected with first limiting piece 120, and the other side is limitingly connected with locking piece 210, button 220 is drivingly connected with locking piece 210, and button 220 is pressed to control locking piece 210 to retract into second limiting piece 130.

[0055] Specifically, the upper surface of the locking piece is provided with a guide surface 212, and the guide surface 212 is inclined to the direction close to the first limiting piece 120 from top to bottom. The movement direction of the button 220 is opposite to the movement direction of the locking piece 210, so that the button 220 is pressed to be unlocked, and the operation is facilitated. The base plate 110 is used for supporting and fixing the equipment to be fixed 400, and the base plate 110 is provided with a connecting hole 113, which can be fixed on a cart, a desktop, an incubator or a bracket. Among them, the above-mentioned fixed part arranged on the equipment to be fixed 400 means that the fixed part is formed integrally with the equipment to be fixed 400, that is, the equipment to be fixed 400 is provided with a fixed part which can be matched with the quick release base 100; for example, the fixed part is arranged as the base of the equipment to be fixed 400, one side of the base is abutted or clamped with the first limiting piece 120, and the other side is provided with a first recess hole, and the locking piece 210 is inserted into the first recess hole. The above-mentioned fixed part installed on the equipment to be fixed 400 means that the fixed part and the equipment to be fixed 400 are two structures, and the fixed part can be installed on the equipment to be fixed 400, for example, the fixed part is arranged as a fixed bottom plate 410, and the fixed bottom plate 410 and the equipment to be fixed 400 are detachably connected by screws or buckles, are adhesively connected or are welded; one side of the fixed bottom plate 410 is abutted or clamped with the first limiting piece 120, and the other side is inserted between the locking piece 210 and the base plate 110; the fixed bottom plate 410 is in the shape of a thin plate, and occupies a small space.

[0056] The use steps of the quick release mechanism include:

[0057] Locking process: the device to be fixed 400 is placed above the quick release base 100, and one side of the fixing part is limited to cooperate with the first limiting piece 120, and the other side of the fixing part naturally falls, the locking piece 210 is retracted into the second limiting piece 130, after the fixing bottom plate 410 is located between the locking piece 210 and the base plate 110, the locking piece 210 extends out of the second limiting piece 130, and the fixing bottom plate 410 is clamped between the locking piece 210 and the base plate 110.

[0058] Unlocking process: press the button 220 and keep the button 220 pressed, the side of the fixing part cooperating with the first limiting piece 120 as a fulcrum, lift the front half part; release the button 220 to separate the fixing part from the first limiting piece 120.

[0059] The quick release mechanism has the advantages of simple locking mode, high installation efficiency, simple unlocking mode, high disassembly efficiency, no need to completely lift the device to be fixed 400 for disassembly, reduced disassembly difficulty, and the like.

[0060] The structure of the quick release mechanism is described in detail as follows:

[0061] In the optional scheme of the embodiment of the utility model, one end of the button 220 is in transmission connection with the locking piece 210, and the other end protrudes from the side wall of the second limiting piece 130 away from the first limiting piece 120, and the button 220 is in sliding cooperation with the second limiting piece 130.

[0062] Specifically, when the user presses the button 220, the locking piece 210 is retracted into the second limiting piece 130; when the user cancels the pressing of the button 220, the locking piece 210 extends out of the second limiting piece 130; the movement direction of the button 220 is opposite to that of the locking piece 210.

[0063] The button 220 and the locking piece 210 respectively protrude from two opposite side walls of the second limiting piece 130, facilitating the user to press the button 220.

[0064] In the optional scheme of the embodiment of the utility model, the first elastic piece 170 is installed between the locking piece 210 and the side wall of the second limiting piece 130 away from the first limiting piece 120.

[0065] Specifically, the first elastic member 170 is a spring, one end of which is connected with the locking member 210, and the other end of which is connected with the inner wall of the second limiting member 130. During locking, the fixing base plate 410 of the equipment to be fixed 400 is placed above the base, and then is pushed to the direction of the first limiting member 120 until the rear edge of the fixing base plate 410 is clamped with the limiting slot 140 of the first limiting member 120, and the front edge of the fixing base plate 410 naturally falls; with the falling of the front edge of the fixing base plate 410, the locking member 210 is forced to retract, and the spring is compressed; after the falling of the fixing base plate 410 is completed, the spring restores to its original shape to push out the locking member 210 to reset, and the locking process is completed.

[0066] The spring plays a resetting role and can realize automatic locking, and the spring is compressed during locking without pressing the button 220.

[0067] In the optional scheme of the embodiment of the utility model, the second elastic member 180 is installed between the button 220 and the side wall of the second limiting member 130 close to the first limiting member 120.

[0068] Specifically, the second elastic member 180 is a spring, one end of which is connected with the button 220, and the other end of which is connected with the inner wall of the second limiting member 130. During unlocking, the spring is compressed and deformed by pressing the button 220; after the fixing base plate 410 is taken out, the user cancels pressing the button 220, and the spring restores to its original shape to reset the button 220.

[0069] The second elastic member 180 plays a resetting role.

[0070] In the optional scheme of the embodiment of the utility model, the button 220 and the locking member 210 are connected through a transmission assembly; the bottom wall of the locking member 210 is provided with a driving rod 213, the transmission assembly comprises a connecting rod 230 and a fixing member 240, the connecting rod 230 and the fixing member 240 are both located in the interior of the second limiting member 130, one end of the connecting rod 230 cooperates with the button 220, the other end of the connecting rod 230 cooperates with the driving rod 213 of the locking member 210, and the connecting rod 230 is located on the side close to the first limiting member 120 of the button 220 and the driving rod 213; the fixing member 240 is located between the button 220 and the locking member 210, and is connected with the base plate 110 through the connecting rod 230, and the connecting rod 230 can rotate around the fixing member 240.

[0071] Specifically, the fixing member 240 can be a screw or a fixing pin, etc. In this embodiment, the two ends of the connecting rod 230 are not always connected with the button 220 and the locking member 210, but when the connecting rod 230 is rotated to a certain angle, it is in contact with the button 220 or the locking member 210 and exerts pressure. In combination with the installation situation: when the device to be fixed 400 is installed, the user does not need to press the button 220, the fixed part falls and presses the locking member 210 to retract; the locking member 210 compresses the first elastic member 170 to deform; when the fixed part falls into place, the locking member 210 extends to lock the fixed part under the action of the first elastic member 170; during this installation process, because the connecting rod 230 is located on the side of the locking member 210 close to the first limiting member 120, the connecting rod 230 does not move, and the button 220 also does not move. When unlocking the fixed part, press the button 220, when the button 220 moves forward and contacts one end of the connecting rod 230 and pushes the connecting rod 230 to rotate around the fixing member 240, the other end of the connecting rod 230 contacts the driving rod 213 of the locking member 210 and pushes the locking member 210 to move backward and retract into the second limiting member 130, realizing the unlocking of the fixed part, and at this time the first elastic member 170 and the second elastic member 180 are compressed; cancel the pressing of the button 220, the button 220 is reset under the rebounding action of the second elastic member 180, the locking member 210 is reset under the rebounding action of the first elastic member 170, and the locking member 210 pushes the connecting rod 230 to reset. The two ends of the connecting rod 230 cooperate with the button 220 and the locking member 210 respectively, so that the movement of the button 220 is not triggered during the installation of the device to be fixed 400; that is, only the movement of the button 220 can trigger the movement of the locking member 210, and the movement of the locking member 210 cannot trigger the movement of the button 220, realizing the smooth installation of the device to be fixed 400.

[0072] The fixing member 240 is located in the middle of the connecting rod 230, and the connecting rod 230 can rotate around the fixing member 240; the movement directions of the button 220 and the locking member 210 cooperating with the two ends of the connecting rod 230 respectively are opposite.

[0073] In an optional scheme of the embodiment, the transmission assembly can also be a gear assembly, a bearing assembly, a chain assembly, etc.

[0074] In an optional scheme of the embodiment, the second limiting member 130 and the base plate 110 form a locking channel 150 and a control channel 160, the base plate 110 is provided with a communication channel 114, the locking member 210 is located in the locking channel 150 and slidably cooperates with the locking channel 150, the button 220 is located in the control channel 160 and slidably cooperates with the control channel 160, the communication channel 114 communicates with the locking channel 150 and the control channel 160, and the connecting rod 230 is located in the communication channel 114.

[0075] Specifically, the substrate 110 is rectangular, and the first limiting member 120 and the second limiting member 130 are arranged along the length direction of the substrate 110.

[0076] The communication channel 114 is in communication with the locking channel 150 and the control channel 160, so that the connecting rod 230 is accommodated, and the two ends of the connecting rod 230 can be connected with the button 220 and the locking member 210.

[0077] The locking channel 150 realizes the sliding fit of the locking member 210 and the second limiting member 130, and the control channel 160 realizes the sliding fit of the button 220 and the second limiting member 130.

[0078] In the optional scheme of the embodiment of the utility model, the side wall of the locking member 210 is provided with a first guide protrusion 211, the inner wall of the locking channel 150 is provided with a first guide groove, the first guide protrusion 211 is inserted into the first guide groove, and the first guide protrusion 211 is in sliding fit with the first guide groove.

[0079] Specifically, the axial direction of the locking channel 150 extends along the length direction of the substrate 110, so that the locking member 210 moves along the length direction of the substrate 110, and the locking of the device to be fixed 400 is realized. Preferably, the first guide protrusion 211 and the first guide groove are provided with a plurality of first guide protrusions 211, and the plurality of first guide protrusions 211 are arranged along the circumferential direction of the locking member 210, and the plurality of first guide grooves are in one-to-one sliding fit with the plurality of first guide protrusions 211.

[0080] The first guide protrusion 211 and the first guide groove are in sliding fit, so as to guide the movement direction of the locking member 210.

[0081] In the optional scheme of the embodiment of the utility model, the side wall of the button 220 is provided with a second guide protrusion 221, the inner wall of the control channel 160 is provided with a second guide groove, the second guide protrusion 221 is inserted into the second guide groove, and the second guide protrusion 221 is in sliding fit with the second guide groove.

[0082] Specifically, the axial direction of the control channel 160 extends along the length direction of the substrate 110, so that the button 220 can move along the length direction of the substrate 110; the locking channel 150 and the control channel 160 are arranged along the width direction of the substrate 110.

[0083] The second guide protrusion 221 and the second guide groove are in sliding fit, so as to guide the movement direction of the button 220.

[0084] In the optional solution of the embodiment of the utility model, the second limiting piece 130 includes a limiting shell 131 and a limiting plate 132; the base plate 110 is provided with a first recess 111 and a second recess 112, and the communication passage 114 is communicated with the first recess 111 and the second recess 112; the limiting shell 131 is installed on the base plate 110, the limiting plate 132 is covered on the side wall of the limiting shell 131 away from the first limiting piece 120, and is provided with a second opening 1321; the limiting shell 131 is provided with a third recess 1311, a fourth recess 1312 and a first opening, the third recess 1311 is opposite to the first recess 111, and is communicated with the first opening to form a locking passage 150, the fourth recess 1312 is opposite to the second recess 112, and is communicated with the second opening 1321 to form a control passage 160.

[0085] Specifically, the end face of the base plate 110 close to the second limiting piece 130 is inwardly recessed to form the communication passage 114, facilitating the installation of the connecting rod 230. The upper surface of the base plate 110 is provided with the first recess 111 and the second recess 112. The side wall of the limiting shell 131 close to the first limiting piece 120 is inwardly recessed to form the first opening and the third recess 1311, and the side wall of the limiting shell 131 close to the limiting plate 132 is inwardly recessed to form the fourth recess 1312. Further, the first fastener is connected with the limiting shell 131 through the base plate 110 from the lower surface of the base plate 110, so that the limiting shell 131 is installed on the base plate 110. The second fastener is connected with the limiting shell 131 through the limiting plate 132. The first fastener and the second fastener can be screws or the like.

[0086] The limiting shell 131, the limiting plate 132 and the base plate 110 jointly form the locking passage 150 and the control passage 160, and the limiting shell 131 is detachably installed on the base plate 110, and the limiting plate 132 is detachably installed on the limiting shell 131, facilitating the disassembly and assembly of the key 220, the locking piece 210 and the connecting rod 230.

[0087] In the optional solution of the embodiment of the utility model, the first limiting piece 120 and the base plate 110 form a limiting groove 140, and the fixing part is clamped with the limiting groove 140.

[0088] Specifically, when the fixing part is arranged on the device to be fixed 400, the fixing part is arranged as a base of the device to be fixed 400, one side of the base is provided with a second recess hole, and the first limiting piece 120 is inserted into the second recess hole to realize clamping; the other side of the base is provided with a first recess hole, and the locking piece 210 is inserted into the first recess hole. When the fixing part is arranged on the device to be fixed 400, the fixing part is arranged as a fixing bottom plate 410, one side of the fixing bottom plate 410 is inserted into the limiting groove 140, and the other side is inserted between the locking piece 210 and the base plate 110. The use steps of the quick release mechanism are described by taking the fixing part as the fixing bottom plate 410 as an example; the locking process: the device to be fixed 400 is placed above the quick release base 100, and the rear edge of the fixing bottom plate 410 of the device to be fixed 400 is clamped in the limiting groove 140 of the first limiting piece 120, and the front edge of the fixing bottom plate 410 naturally falls, the locking piece 210 is retracted into the second limiting piece 130, and after the fixing bottom plate 410 is located between the locking piece 210 and the base plate 110, the locking piece 210 is extended out of the second limiting piece 130, and the fixing bottom plate 410 is clamped between the locking piece 210 and the base plate 110. The unlocking process: keep the press button 220 pressed, and lift the front half of the fixing bottom plate 410 of the device to be unlocked with the rear edge as the fulcrum; the fixing bottom plate 410 of the device to be unlocked is translated out of the limiting groove 140 of the first limiting piece 120.

[0089] The limiting groove 140 is formed between the first limiting piece 120 and the base plate 110, and the limiting effect of the first limiting piece 120 on the fixing part is enhanced.

[0090] In the optional scheme of the embodiment of the utility model, the locking piece 210 is provided with two, the two locking pieces 210 are arranged along the length direction of the second limiting piece 130 and are both in transmission connection with the press button 220.

[0091] Specifically, the two locking pieces 210 are both in transmission connection with the press button 220 through the transmission assembly, and the two locking pieces 210 are located on both sides of the press button 220.

[0092] The two locking pieces 210 improve the locking strength, and further improve the use safety of the quick release mechanism.

[0093] The use steps of the quick release mechanism are described in detail as follows:

[0094] The locking process:

[0095] If the device to be fixed 400 has no fixing part at the bottom, first, the fixing part is arranged on the bottom of the device to be fixed 400;

[0096] Place the fixed part on the substrate 110, and then horizontally move it into the two limiting blocks 190 of the substrate 110, and then move it in the direction of the first limiting piece 120 until the rear edge of the fixed part is clamped with the first limiting piece 120, and the front edge of the fixed part naturally falls down;

[0097] With the falling of the front edge of the fixed part, the locking piece 210 is forced to retract, and after the falling is completed, the first elastic piece 170 pushes out the locking piece 210 to reset, and the locking process is completed.

[0098] Unlocking process:

[0099] The user presses the button 220 to the bottom;

[0100] Keep the button 220 pressed, and lift the front half part with the rear edge of the fixed part as the fulcrum;

[0101] Release the pressed button 220, and then the fixed part can be freely translated forward to be taken out.

[0102] The advantages of the quick release mechanism are described as follows:

[0103] In the locking process, only the locking piece 210 moves, and is automatically reset, so the resistance is small and smooth, and the operation is convenient; and in the locking process, the movement of the locking piece does not affect the state of the button 220;

[0104] In the unlocking process, the device can be placed on the quick release base 100 all the time, does not need to be completely lifted, can be translated along the quick release mechanism, and only needs a small force to be operated by one hand;

[0105] When the quick release mechanism is disassembled and assembled, only a space for extraction is needed in front, so the quick release mechanism can be applied to a scene with small space.

[0106] Embodiment two

[0107] The trolley provided by the embodiment of the utility model comprises the quick release mechanism described in embodiment one, and therefore has all the beneficial effects of embodiment one, which will not be repeated here.

[0108] In the optional scheme of the embodiment of the utility model, the trolley comprises a roller 310, a chassis 320, a stand column 330 and a fixing frame 350; the roller 310 is installed at the bottom of the chassis 320, the stand column 330 is installed at the top of the chassis 320, the fixing frame 350 is fixed to the stand column 330 or the chassis 320, and the quick release base 100 in the quick release mechanism is installed on the fixing frame 350.

[0109] Specifically, refer to Figure 9 and Figure 10The trolley comprises rollers 310, a chassis 320, a stand column 330, a winding column, a storage basket 340, a fixing frame 350 and a handle 360; the rollers 310 are installed at the bottom of the chassis 320, and the stand column 330 is installed at the top of the chassis 320; the winding column and the storage basket 340 are fixed to the stand column 330; the fixing frame 350 is fixed to the stand column 330 or the chassis 320, and a quick-release mechanism is installed on the fixing frame 350; and the handle 360 is fixed to the stand column 330 or the fixing frame 350. The rollers 310 are generally provided with more than one, which plays a supporting, fixing and moving role, and facilitates the user to save labor and move the device, and can be moved universally and locked to prohibit movement. The chassis 320 is used for fixing a plurality of groups of rollers 310 and connecting the stand column 330, and the outer side edge can prevent collision with the wall surface during movement. The stand column 330 is used for being fixed at a height suitable for user operation, and is connected and fixed to other devices, such as the winding column, the fixing frame 350, the storage basket 340 and the handle 360. The winding column is used for fixing or winding a pipeline and is fixed to the stand column 330. The storage basket 340 is used for storing other accessories and is fixed to the stand column 330. The fixing frame 350 can be provided with a plurality of fixing frames, which are used for placing or fixing a plurality of devices, such as a main instrument, an UPS, an air compressor and a humidifier, and are fixed to the stand column 330 or the chassis 320. The handle 360 is convenient for the user to push and should be external or protruding and is fixed to the stand column 330 or the fixing frame 350.

[0110] The quick-release mechanism is installed on the trolley, and when the to-be-fixed equipment 400 is locked on the quick-release mechanism, the to-be-fixed equipment 400 is fixed on the trolley, and the to-be-fixed equipment 400 is convenient for transfer. Of course, the quick-release mechanism is applied to other scenes, such as a table top or a heat preservation box, which should be within the protection scope of the embodiments of the utility model.

[0111] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0112] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A quick release mechanism, characterized by, The utility model relates to a quick release base (100), locking assembly (200) and fixed part are included, the fixed part is equipped in the equipment (400) to be fixed, or, the fixed part is installed to the equipment (400) to be fixed, the quick release base (100) includes the base plate (110), first limit piece (120) and second limit piece (130), first limit piece (120) and second limit piece (130) are installed to the base plate (110), and opposite arrangement is carried out, locking assembly (200) includes locking piece (210) and button (220), locking piece (210) and button (220) are installed to second limit piece (130), locking piece (210) and second limit piece (130) sliding fit and protrude second limit piece (130) and first limit piece (120) opposite side wall, one side of fixed part and first limit piece (120) limit fit, and the other side and locking piece (210) limit fit, button (220) and locking piece (210) transmission connection, press button (220) to control locking piece (210) retract to second limit piece (130) in. One end of button (220) and locking piece (210) transmission connection, the other end protrudes from the side wall of second limit piece (130) away from first limit piece (120), and button (220) and second limit piece (130) sliding fit. Locking piece (210) and the first elastic element (170) are installed between the side wall of second limit piece (130) away from first limit piece (120), button (220) and the second elastic element (180) are installed between the side wall of second limit piece (130) close to first limit piece (120). Button (220) and locking piece (210) are connected through transmission assembly, The bottom wall of locking piece (210) is equipped with drive rod (213), and the transmission assembly includes connecting rod (230) and fixing part (240), connecting rod (230) and fixing part (240) are located in the interior of second limit piece (130), one end of connecting rod (230) is matched with button (220), the other end is matched with the drive rod (213) of locking piece (210), and connecting rod (230) is located on the side of button (220) and drive rod (213) close to first limit piece (120), Fixing part (240) is located between button (220) and locking piece (210), and is connected with base plate (110) through connecting rod (230), and connecting rod (230) can rotate around fixing part (240).

2. The quick release mechanism of claim 1, wherein, ​ 3. The quick release mechanism of claim 2, wherein, ​ 4. The quick release mechanism of claim 3, wherein, ​ ​ ​ 5. The quick release mechanism of claim 4, wherein, The second limiting piece (130) and the base plate (110) form a locking channel (150) and a control channel (160), the base plate (110) is provided with a communication channel (114), the locking piece (210) is located in the locking channel (150) and is in sliding fit with the locking channel (150), the button (220) is located in the control channel (160) and is in sliding fit with the control channel (160), the communication channel (114) is in communication with the locking channel (150) and the control channel (160), and the connecting rod (230) is located in the communication channel (114).

6. The quick release mechanism of claim 5, wherein, The sidewall of the locking piece (210) is provided with a first guide protrusion (211), the inner wall of the locking channel (150) is provided with a first guide groove, and the first guide protrusion (211) is inserted into the first guide groove and is in sliding fit with the first guide groove. The sidewall of the button (220) is provided with a second guide protrusion (221), the inner wall of the control channel (160) is provided with a second guide groove, and the second guide protrusion (221) is inserted into the second guide groove and is in sliding fit with the second guide groove.

7. The quick release mechanism of claim 5, wherein, The second limiting piece (130) comprises a limiting shell (131) and a limiting plate (132). The base plate (110) is provided with a first groove (111) and a second groove (112), and the communication channel (114) is in communication with the first groove (111) and the second groove (112). The limiting shell (131) is mounted on the base plate (110), the limiting plate (132) is arranged on the sidewall of the limiting shell (131) away from the first limiting piece (120) and is provided with a second opening (1321). The limiting shell (131) is provided with a third groove (1311), a fourth groove (1312) and a first opening, the third groove (1311) is opposite to the first groove (111) and is in communication with the first opening to form the locking channel (150), and the fourth groove (1312) is opposite to the second groove (112) and is in communication with the second opening (1321) to form the control channel (160).

8. The quick release mechanism of any one of claims 1-7, wherein, The upper surface of the locking piece (210) is provided with a guide surface (212) which is inclined towards the first limiting piece (120) from top to bottom.

9. The quick release mechanism of any one of claims 1-7, wherein, The first limiting piece (120) and the base plate (110) form a limiting groove (140), and the fixed part is clamped with the limiting groove (140).

10. A cart characterized by, The quick release mechanism comprises a roller (310), a chassis (320), a stand (330), a fixing frame (350) and the quick release mechanism according to any one of claims 1-9. The rolling wheel (310) is installed at the bottom of the chassis (320), the stand (330) is installed at the top of the chassis (320), the fixing frame (350) is fixed to the stand (330) or the chassis (320), and the quick release base (100) of the quick release mechanism is installed on the fixing frame (350).

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