Connecting seat convenient to combine and separate
By designing a connecting base that facilitates assembly and disassembly, the problem of emergency equipment shaking and falling off during transport is solved, achieving stable connection and quick operation of the equipment. The extension base can rotate freely, improving ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-17
AI Technical Summary
During the transport of emergency patients, the emergency equipment may shake and fall off due to bumps, causing inconvenience in its use.
A connector for easy assembly and disassembly is designed, including a base and an extension base. The extension base can be quickly locked and unlocked through a structure such as an insertion part, a snap-fit part, a locking tongue, and an unlocking wrench. A rotation positioning mechanism is set between the extension base and the base to ensure that the extension base can rotate freely when locked.
It achieves a stable connection of emergency equipment during transport, preventing it from falling out. The operation is simple and quick, and the extension base can rotate freely, improving the stability and convenience of use.
Smart Images
Figure CN224002999U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connecting device technology, specifically to a connecting seat that enables two devices to be quickly joined or separated. Background Technology
[0002] Currently, there is a need in many production and daily life scenarios to quickly combine or separate two devices. This is particularly relevant in the medical industry during the transport of critically ill patients. These patients are often accompanied by numerous emergency medical devices, such as defibrillators, ventilators, oxygen cylinders, suction devices, monitors, blood pressure monitors, pulse oximeters, first-aid kits, infusion pumps, temperature-controlled water tanks, and ECMO machines. When a critically ill patient is transferred to the ambulance stretcher, the accompanying emergency medical equipment needs to be placed on the stretcher. Upon arrival at the treatment center, when medical staff transfer the critically ill patient from the stretcher to the transport cart, the accompanying emergency medical equipment must be simultaneously removed from the stretcher and placed on the transport cart. Currently, because the accompanying emergency medical equipment is simply placed on the stretcher or the trolley, it is extremely prone to shaking and falling off during transport due to bumps, making it very inconvenient to use. Utility Model Content
[0003] The purpose of this utility model is to provide a connecting seat that allows for convenient and quick assembly or separation of the base and the extension seat, and the extension seat can still rotate freely relative to the base after assembly.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: a connecting base that facilitates assembly and disassembly, comprising a base and an extension base. An insertion part is provided at the bottom of the extension base, and a socket is provided at the center of the insertion part. A snap-fit part is provided on the upper surface of the base, and the snap-fit part and the upper surface of the base together form a slot for the insertion part of the extension base to slide into. The base has an inner cavity. A latching tongue inlet / outlet is provided on the upper surface of the base, communicating downwards with the inner cavity and corresponding to the socket when the insertion part of the extension base is inserted into the slot. A latch is placed in the latching tongue inlet / outlet. A socket communicating with the inner cavity is provided on one side wall of the base. The end of the base where the socket is located is defined as the front end of the base. An unlocking wrench is inserted through the socket. The front end of the unlocking wrench extends outwards from the base, and the rear end of the unlocking wrench extends into the inner cavity of the base through the socket and is fixed with two unlocking plates that can only move in the front-back direction within the inner cavity of the base. The two unlocking plates are distributed on the latch. On both sides of the lock tongue, a gradually upward-sloping guide slope is provided on the bottom surface of each unlocking plate. Guide posts are horizontally fixed on the left and right side walls of the lock tongue. The guide posts on both sides of the lock tongue are located directly below the corresponding guide slope of the corresponding unlocking plate. The lock tongue is connected to the elastic mechanism. Under the action of the elastic mechanism, the guide posts on both sides of the lock tongue are always pressed against the corresponding guide slope of the corresponding unlocking plate and always tend to move upward from the lock tongue inlet and outlet to extend out of the base. When the extension seat insertion part is inserted into the base slot and the unlocking wrench moves each unlocking plate to the high position of the guide slope to contact the corresponding guide post, the lock tongue will extend upward from the lock tongue inlet and outlet to the base and insert into the socket to lock the extension seat to the base under the action of the elastic mechanism. When the unlocking wrench moves each unlocking plate to the low position of the guide slope to contact the corresponding guide post, the guide post will move down along the guide slope and simultaneously move the lock tongue down to fully retract into the lock tongue inlet and outlet to unlock the extension seat.
[0005] Furthermore, in the aforementioned connector that facilitates assembly and disassembly, the insertion part of the expansion base is circular in shape, allowing the expansion base to rotate relative to the base within the slot when locked to the base. An expansion base rotation positioning mechanism is provided between the base and the expansion base. This mechanism includes: several positioning grooves arranged circumferentially around the insertion hole on the bottom surface of the insertion part; several threaded holes on the upper surface of the base within the area enclosed by the U-shaped edge of the slot; ball screws threaded into each threaded hole; and positioning balls protruding from the head of each ball screw extending from the upper surface of the base. When the expansion base insertion part rotates relative to the base within the slot, the rotation trajectory of the positioning grooves on the bottom surface of the insertion part passes precisely through the positioning balls of each ball screw on the base. When the expansion base insertion part rotates around the locking tongue within the slot until each positioning groove corresponds downwards to the positioning ball of each ball screw, the positioning ball of each ball screw, under the action of its internal spring, will insert upwards into the corresponding positioning groove to position the rotation angle of the expansion base.
[0006] Furthermore, the aforementioned connecting seat that facilitates assembly and disassembly includes: a U-shaped protrusion protruding upward from the upper surface of the base, the opening of the U-shaped protrusion facing the front end of the base, the top edge of the U-shaped protrusion extending inward to form a U-shaped locking edge, the latching tongue entrance / exit of the upper surface of the base being located within the area enclosed by the U-shaped locking edge, the U-shaped protrusion and the U-shaped locking edge constituting a locking part, and the U-shaped protrusion, the U-shaped locking edge and the upper surface of the base together constituting a slot for the insertion part of the expansion seat to be inserted into.
[0007] Furthermore, in the aforementioned connecting seat that facilitates assembly and disassembly, the top surface of the front end of the locking tongue is an inclined surface that gradually slopes upward from front to back, and the front end of the inclined surface is always lower than or flush with the upper surface of the base.
[0008] Furthermore, the aforementioned connecting seat, which facilitates assembly and disassembly, includes: a latch upper and lower guide mechanism in the base that allows the latch to move only vertically relative to the base within the base cavity. The latch upper and lower guide mechanism comprises: two guide units arranged opposite to each other on the left and right sides of the latch entrance / exit within the base cavity; each guide unit includes three columns arranged at intervals; the gap between the first two columns in each guide unit forms a front vertical guide hole, and the gap between the last two columns forms a rear vertical guide hole; the front vertical guide holes of the two guide units are arranged opposite to each other, and the rear vertical guide holes of the two guide units are arranged opposite to each other; coaxial guide rods are provided on the left and right sidewalls of the front end of the latch; the two guide rods of the latch pass through the corresponding front vertical guide holes of the two guide units respectively; and the two guide posts of the latch are coaxially arranged at the rear end of the latch and pass through the corresponding rear vertical guide holes of the two guide units respectively. The latch moves stably only vertically relative to the base within the base cavity through the cooperation of each guide rod with each front vertical guide hole and each guide post with each rear vertical guide hole.
[0009] Furthermore, the aforementioned connecting seat that facilitates assembly and disassembly includes: two guide channels, both oriented in a front-to-back direction, in the base; and two unlocking plates, which are respectively positioned in the two guide channels, so that the two unlocking plates can only move in the front-to-back direction within the inner cavity of the base.
[0010] Furthermore, in the aforementioned connecting seat that facilitates assembly and disassembly, a first spring is connected to the rear end of each unlocking plate. The front end of each first spring abuts against the rear end of the corresponding unlocking plate, and the rear end of each first spring abuts against the rear side wall of the corresponding guide channel. Each first spring ensures that the unlocking plate and the unlocking wrench always have the tendency to move and reset to the high position of the guide slope corresponding to the guide post.
[0011] Furthermore, the aforementioned connecting seat that facilitates assembly and disassembly includes the following: the structure of the elastic mechanism includes: a spring positioning groove is provided at the bottom of the latch, a second spring is provided between the latch and the base, the lower end of the second spring abuts against the upper surface of the base, the upper end of the second spring is embedded in the spring positioning groove and abuts against the latch, and under the action of the second spring, the guide posts on both sides of the latch always press against the corresponding guide slope of the corresponding unlocking plate and always have a tendency to move upward from the latch entrance and exit and extend out of the base.
[0012] Furthermore, the aforementioned connecting base that facilitates assembly and disassembly includes a notch at the front end of the base, into which an unlocking wrench extending from the front end of the base is stored.
[0013] Furthermore, the aforementioned connecting seat that facilitates assembly and disassembly includes a base in which the upper housing and the lower base plate are detachably connected together by several connecting bolts.
[0014] The beneficial effects of this utility model through the implementation of the above technical solution are: simple structure, good sealing performance, high stability in use, and the extension base can be easily and quickly locked to the base or separated from the base. The operation is very convenient, and the extension base can still rotate freely relative to the base when locked to the base, making it more convenient to use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the connecting seat of the present invention, which is easy to assemble and detach, when the extension seat and the base are in a locked state.
[0016] Figure 2 for Figure 1 Top view.
[0017] Figure 3 for Figure 1 AA section view in the image.
[0018] Figure 4 for Figure 1 BB section view in the middle.
[0019] Figure 5 for Figure 4 An enlarged schematic diagram of part C shown in the figure.
[0020] Figure 6 for Figure 1 A three-dimensional image.
[0021] Figure 7 for Figure 6 The structural diagram after the extension seat is hidden is shown in the middle.
[0022] Figure 8 for Figure 7 A schematic diagram of the structure after the base is removed.
[0023] Figure 9 for Figure 8 A three-dimensional image.
[0024] Figure 10 This is a schematic diagram of a locking tongue with guide posts and guide rods installed.
[0025] Figure 11 for Figure 10 A three-dimensional image.
[0026] Figure 12 This is a schematic diagram of the extension base.
[0027] Figure 13 This is a structural diagram of the base.
[0028] Figure 14 for Figure 13 The DD cross-sectional view shown.
[0029] Figure 15 for Figure 13 The EE cross-section shown in the figure.
[0030] Figure 16 for Figure 13 Top view.
[0031] Figure 17 for Figure 13 A three-dimensional image.
[0032] Figure 18 for Figure 13 A schematic diagram of the upper shell structure viewed from below.
[0033] Figure 19 This is a three-dimensional view of the upper shell. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 As shown, the connecting base that facilitates assembly and disassembly includes a base 1 and an extension base 2. An insertion part 3 is provided at the bottom of the extension base 2, and a socket 4 is provided at the center of the insertion part 31. The base 1 is detachably connected to an upper housing 29 and a lower base plate 30 by several connecting bolts. A snap-fit part is provided on the upper surface 100 of the upper housing 29 of the base 1. The snap-fit part and the upper surface 100 of the base together form a slot 5 for the insertion part 3 of the extension base 2 to slide into. The base 1 has an inner cavity 6, and a downward connecting part is provided on the upper surface 100 of the upper housing 29 of the base 1. A latch entrance / exit 7 is provided in the inner cavity 6, and when the insertion part 3 of the expansion base 2 is inserted into the slot 5, it corresponds exactly to the insertion hole 4 of the insertion part 3. A latch 8 is installed in the latch entrance / exit 7. An insertion port 9 is provided on one end side wall of the base 1, which communicates with the inner cavity 6. The end of the base 1 where the insertion port 9 is located is defined as the front end of the base. An unlocking wrench 10 is inserted through the insertion port 9. The front end of the unlocking wrench 10 extends outward from the base 1, and the rear end of the unlocking wrench 10 extends into the inner cavity 6 of the base 1 through the insertion port 9 and is fixed with two unlocking plates 11 that can only move in the back-and-forth direction in the base 1. The two unlocking plates Plates 11 are distributed on the left and right sides of the latch 8. Each unlocking plate 11 has a gradually upward-sloping guide slope 12 on its bottom surface. Coaxial guide posts 13 are horizontally fixed to the left and right side walls of the latch 8. The guide posts 13 on both sides of the latch 8 are located directly below the corresponding guide slope 12 of the corresponding unlocking plate 11. The latch 8 is connected to an elastic mechanism. Under the action of the elastic mechanism, the guide posts 13 on both sides of the latch 8 always press upward against the corresponding guide slope 12 of the corresponding unlocking plate 11, and always extend upward from the latch entrance / exit 7 out of the base 1. Trend; When the insertion part 3 of the expansion base 2 is inserted into the slot 5 of the base 1 and the unlocking wrench 10 moves each unlocking plate 11 to the high position of the guide slope 12 to contact the corresponding guide post 13, the locking tongue 8 will extend upward from the locking tongue inlet 7 and insert into the socket 4 under the action of the elastic mechanism to lock the expansion base 2 to the base 1; when the unlocking wrench 10 moves each unlocking plate 11 to the low position of the guide slope 12 to contact the corresponding guide post 13, the guide post 13 will move downward along the guide slope 12 and simultaneously move the locking tongue 8 downward to fully retract into the locking tongue inlet 7 to unlock the expansion base 2;
[0036] In this embodiment, the insertion part 3 of the expansion base 2 is circular in shape, so that when the expansion base 2 is locked to the base 1, the insertion part 3 of the expansion base 2 can rotate relative to the base 1 within the slot 5. An expansion base rotation positioning mechanism is provided between the base 1 and the expansion base 2. The structure of the expansion base rotation positioning mechanism includes: a plurality of positioning grooves 16 arranged circumferentially around the insertion hole 4 on the bottom surface of the insertion part 3; a plurality of threaded holes provided on the upper surface 100 of the base within the area enclosed by the U-shaped edge 15 of the slot 5; and a ball screw 17 threadedly connected to each threaded hole. The positioning bead 18 of the ball screw 17 extends out of the upper surface 100 of the base. When the insertion part 3 of the extension base 2 rotates around the locking tongue 8 in the slot 5, the rotation trajectory of the positioning groove 16 on the bottom surface of the insertion part 3 passes through the positioning bead 18 of each ball screw 17 of the base 1. When the insertion part 3 of the extension base rotates around the locking tongue 8 in the slot 5 until each positioning groove 16 corresponds downward to the positioning bead 18 of each ball screw 17, the positioning bead 18 of each ball screw 17 will be inserted upward into the corresponding positioning groove 16 by the action of the spring inside to position the rotation angle of the extension base 2.
[0037] In this embodiment, the specific structure of the slot is as follows: a U-shaped protrusion 14 protruding upward from the upper surface 100 of the base 1 is provided. The opening of the U-shaped protrusion 14 faces the front end of the base 1, and the top edge of the U-shaped protrusion 14 extends inward to form a U-shaped locking edge 15. The latching tongue inlet / outlet 7 of the upper surface 100 of the base 1 is located in the area enclosed by the U-shaped locking edge 15. The U-shaped protrusion 14 and the U-shaped locking edge 15 constitute a locking part. The U-shaped protrusion 14, the U-shaped locking edge 15, and the upper surface 100 of the base together constitute a slot 5 for the insertion part 3 of the expansion seat 2 to be inserted into. The advantage of this slot structure is that, on the one hand, since the latching tongue inlet / outlet 7 is located in the visually observable area enclosed by the U-shaped locking edge 15, when the latching tongue 8 is assembled on the base 1, the latching tongue 8 is also located in the visual area. Thus, during the initial equipment debugging, the staff can intuitively observe whether the latching tongue protrudes from the base in the initial state. The upper surface 100 of 1 facilitates maintenance and debugging by staff. On the other hand, the snap-fit part is composed of a U-shaped protrusion 14 and a U-shaped snap-fit edge 15, so that the snap-fit part has straight sections on the left and right sides and an arc section on the rear side. The distance between the straight sections on both sides is adapted to the diameter of the insertion part 3 of the expansion seat 2, so that the straight sections on both sides can effectively guide the insertion part 3 of the expansion seat inserted into the slot 5, so that after the insertion part 3 is fully inserted into the slot 5, the insertion hole 4 in the center of the insertion part 3 corresponds exactly to the locking tongue 8 in the locking tongue inlet / outlet 7, so that the locking tongue 8 can be accurately inserted into the insertion hole 4 to lock the expansion seat 2 in the slot of the base 1. Furthermore, the arc section of the snap-fit part is concentric with the circular insertion part 3. Thus, when the insertion part 3 of the expansion seat 2 is fully inserted into the slot 5 along the straight section, the arc section of the snap-fit part is concentric with the circular insertion part 3, so that the insertion part 3 of the expansion seat 2 can rotate more stably in the slot 5, thereby improving the stability of use.
[0038] In this embodiment, the top surface of the front end of the latch 8 is a slope 19 that gradually slopes upward from front to back. The front end of the slope 19 is always lower than or flush with the upper surface 100 of the base. The advantage of this latch structure is that, due to the presence of the slope 19 of the latch 8, when the insertion part 3 of the expansion base 2 enters the slot 5 of the base 1, the insertion part 3 will press down on the latch 8 along the slope 19, so that the latch 8 will not obstruct the insertion part 3 of the expansion base from sliding into the slot 5 of the base until the insertion part 3 is fully inserted into the slot 5. After the insertion part 3 is fully inserted into the slot 5, the insertion hole 4 in the center of the insertion part 3 corresponds exactly to the latch inlet / outlet 7. The locking tongue 8 in the middle, under the elastic force of the second spring 27, will extend upward from the locking tongue inlet 7 to the base 1 and insert into the socket 4, so as to lock the extension base 2 in the slot 5 of the base 1, thereby locking the extension base 2 to the base 1; since before the insertion part 3 of the extension base 2 is inserted into the slot 5 of the base 1, the operator does not need to operate the unlocking wrench 10 to make the locking tongue 8 fully retracted downward to the unlocked state of the locking tongue inlet 7, the extension base insertion part 3 can be directly slid into the slot 5 and locked in the slot 5, thus eliminating the locking tongue unlocking step before the extension base insertion part 3 is inserted into the base slot 5, making the operation more convenient;
[0039] In this embodiment, a latch up-and-down guide mechanism is provided in the base 1 to allow the latch 8 to move only vertically relative to the base 1 within the inner cavity 6 of the base. The structure of the latch up-and-down guide mechanism includes: two guide units are provided in the inner cavity 6 of the base 1, which are relatively distributed on the left and right sides of the latch entrance / exit 7. Each guide unit includes three columns 20 arranged at intervals. The gap between the first two columns 20 in each guide unit forms a front vertical guide hole 21, and the gap between the last two columns 20 forms a rear vertical guide hole 22. The front vertical guide holes 21 of the two guide units are arranged opposite each other, and the rear vertical guide holes 22 of the two guide units are arranged opposite each other. Coaxial guide rods 23 are provided on the left and right sidewalls of the front end of the latch 8. The two guide rods 23 of the latch 8 are respectively inserted into the corresponding front vertical guide holes 21 of the two guide units. The two guide posts 13 of the latch 8 are... The locking tongue 8 is coaxially positioned at the rear end and passes through the corresponding rear vertical guide holes 22 of the two guide units. The locking tongue 8 can only move stably relative to the base 1 in the vertical direction within the inner cavity of the base 6 through the cooperation of each guide rod 23 with each front vertical guide hole 21 and each guide post 13 with each rear vertical guide hole 22. Through the setting of the locking tongue vertical guide mechanism, the locking tongue 8 can move smoothly up or down during the locking or unlocking of the expansion seat. This allows the locking tongue 8 to quickly and accurately extend from the locking tongue inlet / outlet 7 to lock the expansion seat 2 or retract downward from the locking tongue inlet / outlet 7 into the inner cavity of the base 6 to unlock the expansion seat 2. This effectively avoids the situation where the locking tongue 8 is jammed in the inner cavity of the base 6 due to lateral positional displacement after retracting downward from the locking tongue inlet / outlet 7, which would prevent the expansion seat from being locked. This improves the stability of use and makes the operation more convenient.
[0040] In this embodiment, two guide channels 24, both running in a front-to-back direction, are provided in the base 1. Two unlocking plates 11 are respectively disposed in the two guide channels 24, so that the two unlocking plates 11 can only move in the front-to-back direction in the inner cavity 6 of the base. The guide channels 24 ensure that the two unlocking plates 11 can only move stably in the front-to-back direction in the inner cavity 6 of the base, thereby making the movement of the unlocking plates 11 more stable. The unlocking plates 11 can stably cooperate with the guide post 13 through the guide inclined surface 12 to drive the locking tongue 8 to unlock or lock the expansion seat.
[0041] In this embodiment, a first spring 25 is connected to the rear end of each unlocking plate 11. The front end of each first spring 25 abuts against the rear end of the corresponding unlocking plate 11, and the rear end of each first spring 25 abuts against the rear side wall 241 of the corresponding guide channel 24. Each first spring 25 makes the unlocking plate 11 and the unlocking wrench 10 always tend to move and reset to the guide post 13 at the high position of the guide slope. The design of the first spring 25 makes it easier for the unlocking wrench 10 to reset, making the operation more convenient.
[0042] In this embodiment, the elastic mechanism includes: a spring positioning groove 26 is provided at the bottom of the latch 8; a second spring 27 is provided between the latch 8 and the base 1; the lower end of the second spring 27 abuts against the upper surface 100 of the base; the upper end of the second spring 27 is embedded in the spring positioning groove 26 and abuts against the latch 8; under the action of the second spring 27, the guide posts 13 on both sides of the latch 8 always press upward against the corresponding guide slope 12 of the corresponding unlocking plate 11, and always have a tendency to move upward from the latch inlet / outlet 7 and extend out of the base 1. The above elastic mechanism has a simple structure. In this embodiment, a notch 28 is provided at the front end of the base 1; the unlocking wrench 10 extending from the front end insertion port 9 of the base is stored in the notch 28. This can prevent the unlocking wrench 10 from being damaged by collision or accidentally unlocked during use, making the equipment safer to use.
[0043] In practical applications, the guide slopes 12 on the bottom surfaces of the two unlocking plates 11 can simultaneously be guide slopes 12 that gradually slope upwards from front to back. With this type of guide slope 12, the unlocking action of the unlocking wrench 10 is "pressing"; or the guide slopes on the bottom surfaces of the two unlocking plates 11 can simultaneously be guide slopes 12 that gradually slope upwards from back to front. With this type of guide slope 12, the unlocking action of the unlocking wrench 10 is "pulling outwards".
[0044] The following describes in detail the process of the expansion dock 22 assembling into the base 1 when the unlocking action of the unlocking wrench 10 is "pressed", and the process of the expansion dock 2 and the base 1 separating from the base:
[0045] Before work, for equipment 1 (such as emergency equipment) and equipment 2 (such as an ambulance stretcher or rotating trolley) that need to be combined or separated, where equipment 1 needs to be removed from or installed on equipment 2, first fix the base 1 of the connecting seat of this utility model to equipment 2, and fix the extension seat 2 of this utility model to the bottom of equipment 1.
[0046] When device one needs to be installed on device two, align the insertion part 3 of the expansion base 2 with the slot 5 along the upper surface 100 of the base 1. During the insertion of the insertion part 3 of the expansion base 2 into the slot 5, the insertion part 3 will move along the inclined surface 19 of the latch 8 and gradually press down on the latch 8, so that the latch 8 will not obstruct the expansion base insertion part 3 from sliding into the base slot 5, until the insertion part 3 is fully inserted into the slot 5. After the insertion part 3 is fully inserted into the slot 5, the insertion hole 4 in the center of the insertion part 3 corresponds exactly to the latch 8 in the latch entrance / exit 7. At this time, under the elastic force of the second spring 27, the latch 8 will extend upward from the latch entrance / exit 7 into the base 1 and insert into the insertion hole 4. The expansion base insertion part 3 is locked in the slot 5 of the base 1, thereby locking the expansion base 2 to the base 1. At this time, the expansion base 2 can still rotate freely relative to the base 1 within the slot 5 around the locking tongue 8. When the expansion base insertion part 3 rotates within the slot 5 around the locking tongue 8 until each positioning groove 16 corresponds downward to the positioning ball 18 of each ball screw 17 in the base 1, the positioning ball 18 of each ball screw 17 will be inserted upward into the corresponding positioning groove 16 by the action of its internal spring to position the rotation angle of the expansion base 2 relative to the base 1, thereby realizing the quick installation of device 1 onto device 2 while device 1 can still rotate relative to device 2.
[0047] When it is necessary to remove device one from device two, first press the unlocking wrench 10, causing the unlocking wrench 10 to overcome the elastic force of the first spring 25 and move backward along the insertion port 9. Simultaneously, this causes the two unlocking plates 11 to overcome the elastic force of the first spring 25 and move backward along the corresponding guide channel 24. During the backward movement of the unlocking plates 11, the unlocking plates 11 drive the guide post 13 to gradually move downward along the guide slope 12 in the corresponding guide vertical hole, thereby simultaneously driving the locking tongue 8 to move downward. When the unlocking plates 11 move to the low position of the guide slope 12 and contact the corresponding guide post 13, the locking tongue 8 moves downward to fully retract into the locking tongue inlet / outlet 7 to disengage the expansion seat insertion part 3 from the latch. Unlock in slot 5. At this time, the extension seat insertion part 3 can be moved out of the slot 5 of the base. Keep pressing the unlocking wrench 10 to make the locking tongue 8 unlock the extension seat insertion part 3. Then, move the extension seat insertion part 3 out of the slot 5 of the base 1 to separate the extension seat 2 from the base 1, thereby realizing the quick removal of device 1 from device 2. Then, remove the external force applied to the unlocking wrench 10. At this time, the unlocking plate 11 and the unlocking wrench 10 will move forward and reset to the guide post 13 at the high position of the guide slope 12 under the elastic force of the first spring 25, so that the locking tongue 8 can move upward from the locking tongue inlet 7 and extend out of the base 1 under the action of the second spring 27.
[0048] The advantages of this utility model are: simple structure, good sealing performance, high stability in use, and the ability to easily and quickly lock the extension base to the base or separate the extension base from the base. The operation is very convenient, and the extension base can still rotate freely relative to the base when it is locked to the base, making it more convenient to use.
[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any modifications or equivalent changes made based on the technical essence of the present utility model shall still fall within the scope of protection claimed by the present utility model.
Claims
1. A connection seat for easy assembly and disassembly, characterized in that: The base and the expansion seat are provided with an insertion part at the bottom of the expansion seat, and the center of the insertion part is provided with a socket. The upper surface of the base is provided with a clamping part, and the clamping part and the upper surface of the base jointly form a clamping groove for the translational insertion of the insertion part of the expansion seat. The base has an inner cavity. The upper surface of the base is provided with a lock tongue exit and entrance that communicates downward with the inner cavity and corresponds to the socket of the insertion part when the insertion part of the expansion seat is inserted into the clamping groove. A lock tongue is arranged in the lock tongue exit and entrance. A socket that communicates with the inner cavity is arranged on the side wall of one end of the base, and the end of the base where the socket is located is defined as the front end of the base. An unlocking wrench is arranged in the socket. The front end of the unlocking wrench protrudes outward from the base. The rear end of the unlocking wrench extends into the inner cavity of the base through the socket and is fixed with two unlocking plates that can only move in the front-rear direction in the inner cavity of the base. The two unlocking plates are distributed on the left and right sides of the lock tongue. A gradually upwardly inclined guide slope is arranged on the bottom surface of each unlocking plate. Guide columns are transversely fixed on the left and right side walls of the lock tongue. The guide columns on the left and right sides of the lock tongue are located directly below the corresponding guide slope of the unlocking plate on the corresponding side. The lock tongue is connected with an elastic mechanism. The guide columns on the left and right sides of the lock tongue are always in contact with the corresponding guide slope of the unlocking plate on the corresponding side under the action of the elastic mechanism and always have a tendency to move upwardly and protrude out of the base from the lock tongue exit and entrance. When the insertion part of the expansion seat is inserted into the clamping groove of the base and each unlocking plate is moved to the high position of the guide slope to contact the corresponding guide column, the lock tongue will protrude out of the base upwardly from the lock tongue exit and entrance and be inserted into the socket to lock the expansion seat to the base under the action of the elastic mechanism. When each unlocking plate is moved to the low position of the guide slope to contact the corresponding guide column by the unlocking wrench, the guide column will move downwardly along the guide slope to synchronously move the lock tongue downwardly to completely retract into the lock tongue exit and entrance to unlock the expansion seat.
2. The connection seat of claim 1, wherein: The insertion part of the expansion seat is in a circular shape that facilitates the rotation of the expansion seat relative to the base in the clamping groove when the expansion seat is locked to the base. A rotation positioning mechanism of the expansion seat is arranged between the base and the expansion seat. The structure of the rotation positioning mechanism of the expansion seat comprises: a plurality of positioning grooves are arranged on the bottom surface of the insertion part in a circumferential direction around the socket. A plurality of threaded holes are arranged on the upper surface of the base in the region surrounded by the U-shaped clamping edge of the clamping groove. A wave bead screw is threadedly connected in each threaded hole. The positioning bead of the head of each wave bead screw protrudes out of the upper surface of the base. When the insertion part of the expansion seat rotates relative to the base in the clamping groove, the rotation track of the positioning groove on the bottom surface of the insertion part passes through the positioning bead of each wave bead screw of the base. When the insertion part of the expansion seat rotates in the clamping groove around the lock tongue to the position where each positioning groove corresponds to the positioning bead of each wave bead screw downwardly, the positioning bead of each wave bead screw will be inserted into the corresponding positioning groove upwardly under the action of the spring inside the wave bead screw to position the rotation angle of the expansion seat.
3. The connection seat of claim 1 or 2, wherein: The upper surface of the base is provided with a U-shaped protrusion protruding upward from the upper surface of the base, the opening of the U-shaped protrusion faces the front end of the base, the top edge of the U-shaped protrusion protrudes and extends inward to form a U-shaped clamping edge, the lock tongue access opening is located in the area surrounded by the U-shaped clamping edge, and the U-shaped protrusion and the U-shaped clamping edge form a clamping portion, and the U-shaped protrusion, the U-shaped clamping edge and the upper surface of the base together form a clamping groove for the insertion of the expansion seat.
4. The connector of claim 1, wherein: The front end top surface of the lock tongue is a slope surface gradually inclined upward from front to back, and the front end of the slope surface is always lower than or flush with the upper surface of the base.
5. The connector of claim 1, wherein: A lock tongue up-down guide mechanism is arranged in the base to enable the lock tongue to move in the up-down direction relative to the base in the inner cavity of the base. The structure of the lock tongue up-down guide mechanism comprises: two guide units are arranged in the inner cavity of the base and are oppositely distributed on the left and right sides of the lock tongue access opening. Each guide unit comprises three vertical columns arranged in front and back. The gap between the front two vertical columns of each guide unit forms a front vertical guide hole, and the gap between the rear two vertical columns forms a rear vertical guide hole. The front vertical guide holes of the two guide units are oppositely arranged, and the rear vertical guide holes of the two guide units are oppositely arranged. Coaxial guide rods are arranged on the left and right side walls of the front end of the lock tongue. The two guide rods of the lock tongue are respectively arranged in the corresponding front vertical guide holes of the two guide units. The two guide columns of the lock tongue are coaxially arranged at the rear end of the lock tongue and are respectively arranged in the corresponding rear vertical guide holes of the two guide units. The lock tongue is stably moved in the up-down direction relative to the base in the inner cavity of the base through the cooperation of the guide rods and the front vertical guide holes and the cooperation of the guide columns and the rear vertical guide holes.
6. The connector of claim 1, wherein: Two guide channels are arranged in the base, and the two unlocking plates are arranged in the two guide channels to enable the two unlocking plates to move in the front-rear direction in the inner cavity of the base.
7. The connection seat of claim 6, wherein: A first spring is connected to the rear end of each unlocking plate. The front end of each first spring abuts against the rear end of the corresponding unlocking plate, and the rear end of each first spring abuts against the rear end side wall of the corresponding guide channel. The first spring always has a tendency to move the unlocking plate and the unlocking wrench back to the high position corresponding to the guide column of the guide slope.
8. The connection seat of claim 1, wherein: The structure of the elastic mechanism comprises: a spring positioning groove is arranged at the bottom of the lock tongue, and a second spring is arranged between the lock tongue and the base. The lower end of the second spring abuts against the upper surface of the base, and the upper end of the second spring is embedded in the spring positioning groove and abuts against the lock tongue. The guide columns on both sides of the lock tongue always abut against and contact the corresponding guide slope of the corresponding unlocking plate under the action of the second spring, and always have a tendency to move upward and out of the lock tongue access opening.
9. The connector of claim 1, wherein: An opening is arranged at the front end of the base, and the unlocking wrench protruding from the front end of the base is stored in the opening.
10. The connector of claim 1, wherein: The base is detachably connected together by the upper shell and the lower bottom plate through a plurality of connecting bolts.