Locking assembly and flowing liquid heater

Abstract

The utility model discloses a locking assembly and a flowing liquid heater, and relates to the technical field of medical instruments, the locking assembly comprises a lock catch and a locking part, the lock catch is fixedly installed on a first working part, the locking part is arranged on a second working part, and the lock catch and the locking part are arranged in a matched mode and used for locking the first working part and the second working part. The flowing liquid heater comprises the locking assembly, a heating part is arranged in the first working part and / or the second working part, and the second working part can rotate around the connecting assembly and is attached to the first working part to form a cavity used for heating an in-vitro blood purification pipeline. And the first working part and / or the second working part are / is provided with an inlet / outlet for the in-vitro blood purification pipeline to enter and exit. The locking assemblies are all in connecting rod transmission, the structure is simple, and cleaning is convenient. The heating efficiency of the in-vitro blood purification pipeline can be improved through the closed cavity formed by the first working part and the second working part and the inlet and outlet in the first working part and / or the second working part.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, relate to a locking assembly and flowing liquid heater. BACKGROUND

[0002] In the process of blood purification, blood purification equipment and blood purification pipeline laid thereon are usually used to purify blood, specifically, under the action of blood pump power, blood is led out of the body through the aforementioned blood purification pipeline, and the blood purification module such as plasma adsorption column and perfusion device is used to extract unnecessary substances or molecules from the blood of the patient (for example, blood component separation and plasma removal method), and / or add beneficial substances or molecules to the blood, and then the purified blood is pumped back into the body through the blood purification pipeline, so as to purify the blood.

[0003] However, in the process of blood purification, the temperature of the extracorporeal circulating blood will gradually decrease due to the influence of environmental temperature or added substances, and the patient may feel cold after the blood is returned to the body. In severe cases, the patient may even have hypothermia or other discomforts. Therefore, before the blood is returned to the body, the blood needs to be heated.

[0004] In view of the above problems, the Chinese patent document with publication number CN104185484A discloses a heating device for heating dialysis fluid, a dialysis fluid hose set, a set, a medical device and a method. The heating device includes a receiving section for receiving a heating bag through which the dialysis fluid can flow for heating. The heating device includes a sensor system for determining or monitoring the deformation of the heating bag or the position of the heating bag in the heating device or in the receiving section of the heating device or in both. The dialysis fluid hose set is provided for, embodied as or designed to be inserted into the heating device as described above. The above-mentioned patent can heat the blood before it is returned to the body, but the above-mentioned patent adopts a bag-type heating structure, the diameter of the heating bag is larger than the diameter of the upper and lower tube sections, which increases the heat conduction time, thereby reducing the heating efficiency.

[0005] In view of the above problems, the Chinese patent document with publication number CN115105665A discloses a manufacturing method of a blood purification heating device. The heating disc in the above-mentioned patent adopts a threaded form, which can increase the flow path of blood in the heating area, and is a double coil heating, thereby improving the heating efficiency of blood in the blood purification pipeline, but the consumable cost of the above-mentioned patent is high.

[0006] In view of the above problems, the Chinese patent document with publication number CN209645536U discloses a blood heating device with improved structure and a blood purification equipment. The blood heating device comprises a base and a top cover. At least one of the top cover and the base is fixed with an electric heating element. A heating cavity for accommodating and heating a blood heating container is formed between the top cover and the base. The top cover is guided by a guide mechanism and reciprocally moves in a translational manner between a fastening position and an opening position relative to the base. A locking mechanism is arranged between the top cover and the base for releasably locking them at the fastening position. The above-mentioned patent adopts a single heating disc structure, which saves consumables. However, the structure is relatively complex, not easy to clean, and the fastening sound is loud. Utility model content

[0007] The utility model discloses a locking assembly, which is simple in structure and easy to clean.

[0008] To achieve the above object, the utility model adopts the following technical scheme: a locking assembly, comprising a lock catch and a locking part, the lock catch is fixedly installed on a first working part, the locking part is arranged on a second working part, the lock catch and the locking part are arranged in cooperation, and are used for locking and connecting the first working part and the second working part.

[0009] The locking part comprises a lock tongue arranged in cooperation with the lock catch on the second working part in a middle part rotation mode, a fixed seat fixedly installed on the second working part and a pressing block rotationally installed on the fixed seat, a torsion spring for resetting the pressing block is arranged between the pressing block and the fixed seat, the surface of the side close to the pressing block of the lock tongue is a slope, a guide rod fixedly installed on the pressing block abuts against the slope, and an elastic piece for resetting the lock tongue is arranged between the fixed seat and the lock tongue.

[0010] The technical principle of the utility model is as follows: one end of the lock tongue close to the first working part is buckled in the lock catch, at this time, the guide rod abuts against the slope, the torsion spring and the elastic piece are all in the uncompressed state, the elastic piece can support the end of the lock tongue away from the first working part, avoids the rotation of the lock tongue, and limits the lock tongue in the lock catch.

[0011] When the first working part needs to be separated from the second working part, the pressing block is pulled, the guide rod slides on the slope, so that the end of the lock tongue away from the lock catch is pressed down, the end of the lock tongue close to the lock catch is lifted, and the second working part can be separated from the first working part.

[0012] Another object of the utility model is to provide a flowing liquid heater, which has high heating efficiency for extracorporeal circulation blood pipeline.

[0013] To achieve the above object, the utility model discloses the following technical scheme: a flowing liquid heater, including above-mentioned locking assembly, the connecting assembly for hinging together first working part and second working part is arranged between first working part and second working part, the heating part is arranged in first working part and / or second working part, and the cavity for heating extracorporeal blood purification pipeline is formed by the mutual adhesion of second working part rotatable around connecting assembly and first working part, and the import and export for extracorporeal blood purification pipeline are formed on first working part and / or second working part.

[0014] Further, the heating part includes first heating piece and second heating piece, and the first working part includes first shell and first heat insulation plate fixedly installed in the first shell, the first heating piece is arranged in the first heat insulation plate, and the wire hole that communicates with the inside of the first heat insulation plate is formed on the first shell.

[0015] The second working part includes second shell and second heat insulation plate fixedly installed in the second shell, and the second heating piece is arranged in the second heat insulation plate, and the wiring slot that communicates with the inside of the second heat insulation plate is formed on the second shell, and the connecting assembly is arranged between the first shell and the second shell.

[0016] Further, the first heat insulation plate is provided with through hole, and the hanging pin fixedly installed on the first shell is arranged in the through hole, and the second heat insulation plate is provided with the hole for the hanging pin.

[0017] Further, the first heat insulation plate is provided with microswitch, and the second heat insulation plate is provided with the convex point matched with the microswitch.

[0018] Further, the first heat insulation plate and the second heat insulation plate are provided with heat conduction plate.

[0019] Further, the connecting assembly includes first connecting part and second connecting part.

[0020] The first connecting part includes the first connecting piece arranged on the lower side of the first shell and the second connecting piece arranged on the lower side of the second shell, the first connecting piece is provided with the convex and the guide slot, and the second connecting piece is provided with the through slot matched with the convex and the guide pin matched with the guide slot.

[0021] The second connecting part includes the third connecting piece arranged on the upper side of the first shell and the fourth connecting piece arranged on the upper side of the second shell, the third connecting piece and the fourth connecting piece partially intersect, and the mounting hole penetrating through the third connecting piece and the fourth connecting piece is arranged at the intersection.

[0022] Further, it further includes first wire guard and second wire guard, the first wire guard is arranged on the second connecting part, and the first wire guard is arranged on the upper side of the mounting hole, the second wire guard is fixedly installed on the second shell, and the second wire guard is arranged on the lower side of the mounting hole, and the second wire guard is used to shield the wiring slot.

[0023] The utility model discloses the beneficial effects are:

[0024] 1、Locking assembly is all connecting rod drive, simple structure, convenient for cleaning,

[0025] 2、Through the first work department and the second work department form the relatively closed cavity, and the import and export on the first work department and / or the second work department, can improve the heating efficiency of the extracorporeal blood purification pipeline,

[0026] 3、Through the setting of the hanging pin, can hang the extracorporeal blood circulation pipeline on the hanging pin, and the blood of extracorporeal circulation is heated conveniently,

[0027] 4、Through the setting of connecting component, can limit the included angle that the second work department and the first work department spread between,

[0028] 5、Through the setting of the first wire guard and the second wire guard, convenient for assembly and hide the electric wire,

[0029] 6、Through the setting of locking assembly, can fix the first work department and the second work department together, can further improve the heating efficiency of the extracorporeal blood purification pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the first structural diagram of the utility model,

[0031] Figure 2 It is the second structural diagram of the utility model,

[0032] Figure 3 It is the third structural diagram of the utility model,

[0033] Figure 4 It is the fourth structural diagram of the utility model,

[0034] Figure 5 It is the structural diagram of locking part,

[0035] Figure 6 It is the structural diagram of first connecting piece,

[0036] Figure 7 It is the structural diagram of second connecting piece,

[0037] Figure 8 It is the structural diagram of heating disc.

[0038] In the above drawing,

[0039] 1, first work department, 101, first shell, 102, first heat insulating plate, 103, first heating piece, 104, wire hole,

[0040] 2, second working part; 201, second shell; 202, second heat insulation plate; 203, second heating element; 204, wiring slot;

[0041] 3, heat conduction plate; 4, hanging pin; 5, let go of the hole; 6, micro switch; 7, convex point;

[0042] 8, first connecting part; 801, first connecting piece; 8011, convex; 8012, guide groove; 802, second connecting piece; 8021, through slot; 8022, guide pin;

[0043] 9, second connecting part; 901, third connecting piece; 902, fourth connecting piece; 903, mounting hole;

[0044] 10, first wire guard; 11, second wire guard;

[0045] 12, heating disc; 1201, hanging hole;

[0046] 13, lock catch;

[0047] 14, locking part; 1401, lock tongue; 1402, fixed seat; 1403, pressing block; 1404, guide rod; 1405, sleeve; 1406, torsional spring; 1407, elastic element;

[0048] 15, import and export. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. The structures described in various embodiments can be freely combined without structural or principle conflicts.

[0050] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "inner", "outer" and the like is the orientation or position relation shown based on the drawings, or is the orientation or position relation commonly placed when the utility model product is used, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0052] Some embodiments of the utility model will be described below in combination with the drawings:

[0053] As shown in Figure 1 , Figure 2 and Figure 5 , the utility model provides a locking assembly, including lock catch 13 and locking portion 14, lock catch 13 is fixedly installed on first working portion 1, locking portion 14 is arranged on second working portion 2, lock catch 13 is matched with locking portion 14 and is arranged, for locking and connecting first working portion 1 and second working portion 2;

[0054] Locking portion 14 includes the lock tongue 1401 of the middle part rotationally arranged on second working portion 2 and matched with lock catch 13, the fixed seat 1402 of being fixedly installed on second working portion 2 and the pressing block 1403 of being rotationally installed on fixed seat 1402, the torsional spring 1406 for making the pressing block 1403 reset is arranged between the pressing block 1403 and fixed seat 1402, the surface of the side close to the pressing block 1403 of lock tongue 1401 is inclined, the guide rod 1404 that is opposite the inclined surface is fixedly installed on the pressing block 1403, and the elastic member 1407 for making the lock tongue 1401 reset is arranged between fixed seat 1402 and lock tongue 1401.

[0055] Lock tongue 1401 and fixed seat 1402 are arranged on the two sides adjacent to second working portion 2 respectively, the end close to first working portion 1 of lock tongue 1401 is buckled in lock catch 13, at this time, guide rod 1404 is opposite the inclined surface, torsional spring 1406 and elastic member 1407 are all in uncompressed state, the end of elastic member 1407 away from first working portion 1 can be supported, under the action of elastic member 1407, the rotation of lock tongue 1401 can be avoided, and lock tongue 1401 is limited in lock catch 13.

[0056] When first working portion 1 and second working portion 2 need to be separated, the pressing block 1403 is pulled, and the guide rod 1404 will slide on the inclined surface, so that the end of the lock tongue 1401 away from the lock catch 13 can be pressed down, and the end of the lock tongue 1401 close to the lock catch 13 will be raised, so that the second working portion 2 and the first working portion 1 can be separated.

[0057] A sleeve 1405 is coaxially sleeved on the guide rod 1404, which can reduce the wear between the guide rod 1404 and the lock tongue 1401, the locking assembly is a connecting rod transmission, which is simple in structure and convenient to clean, and under the action of the elastic member 1407, the buckling sound is small.

[0058] As shown in Figures 1-8 , a flowing liquid heater comprises the locking assembly, a connecting assembly for hingedly connecting the first working part 1 and the second working part 2 together is arranged between the first working part 1 and the second working part 2, a heating part is arranged in the first working part 1 and / or the second working part 2, the second working part 2 can rotate around the connecting assembly and is in close contact with the first working part 1 to form a cavity for heating an extracorporeal blood purification pipeline, and an inlet and outlet 15 is formed on the first working part 1 and / or the second working part 2 for the extracorporeal blood purification pipeline to enter and exit.

[0059] The heating part can be arranged in the first working part 1 or the second working part 2, or arranged in the first working part 1 and the second working part 2 at the same time, in order to improve the heating efficiency of the extracorporeal blood purification pipeline, the heating part is preferably arranged in the first working part 1 and the second working part 2 at the same time.

[0060] The inlet and outlet 15 can be arranged on the first working part 1 or the second working part 2 alone, the inlet and outlet can be two, the two inlets and outlets 15 are arranged on the upper and lower sides or the same side of the first working part 1, the arrangement of the inlet and outlet 15 on the second working part 2 is the same as that of the first working part 1, the extracorporeal blood purification pipeline enters the cavity from the inlet and outlet 15 and is then led out from the other inlet and outlet 15, thereby completing the heating of the extracorporeal blood purification pipeline; the inlet and outlet 15 can also be only one, the position of the inlet and outlet 15 is not limited herein, the extracorporeal blood purification pipeline enters the cavity from the inlet and outlet 15 and is then led out from the same inlet and outlet 15, thereby completing the heating of the extracorporeal blood purification pipeline. In order to reduce the heat dissipation of the cavity, the inlet and outlet 15 is preferably one.

[0061] The first working part 1 is vertically fixedly installed on a blood purification device, the width of the inlet and outlet 15 refers to the horizontal width of the gap between the first working part 1 and the second working part 2 after they are in close contact, the width of the inlet and outlet 15 is greater than the diameter of the extracorporeal blood purification pipeline and less than the sum of the diameters of two extracorporeal blood purification pipelines, thereby avoiding the extracorporeal blood purification pipelines in the cavity from overlapping in the horizontal direction, enabling all the extracorporeal blood purification pipelines to be in close contact with the first working part 1 and the second working part 2, and further improving the heating efficiency.

[0062] As shown in Figure 1 and Figure 2As shown, the heating part comprises the first heating member 103 and the second heating member 203, the first working part 1 comprises the first shell 101 and the first heat insulation plate 102 fixedly installed in the first shell 101, the first heating member 103 is arranged in the first heat insulation plate 102, and the first shell 101 is provided with the wire hole 104 in communication with the inside of the first heat insulation plate 102;

[0063] The second working part 2 comprises the second shell 201 and the second heat insulation plate 202 fixedly installed in the second shell 201, the second heating member 203 is arranged in the second heat insulation plate 202, the second shell 201 is provided with the wire slot 204 in communication with the inside of the second heat insulation plate 202, and the connecting assembly is arranged between the first shell 101 and the second shell 201.

[0064] The first shell 101 is fixedly installed on the blood purification equipment, the wire for heating the first heating member 103 is connected to the first heating member 103 through the wire hole 104 and into the first heat insulation plate 102, and the wire for heating the second heating member 203 is connected to the second heating member 203 through the wire slot 204 and into the second heat insulation plate 202, the maximum load power of the first heating member 103 and the second heating member 203 is 200W, and the rated voltage is 24V.

[0065] After the second shell 201 is attached to the first shell 101, a space is left between the first heat insulation plate 102 and the second heat insulation plate 202 to form a cavity, that is, a relatively closed space is formed, so that the heat dissipation of the first heating member 103 and the second heating member 203 can be reduced, and the heating efficiency can be improved.

[0066] Further, as shown in Figure 1 、 Figure 2 and Figure 7 , the first heat insulation plate 102 is provided with a through hole, the through hole is provided with a hanging pin 4 fixedly installed on the first shell 101, and the second heat insulation plate 202 is provided with a gap hole 5 matched with the hanging pin 4.

[0067] When the extracorporeal blood purification pipeline needs to be heated, the blood purification pipeline is coiled and bonded on the heating disc 12, or the blood purification pipeline is integrally formed with the heating disc 12. The heating disc 12 is made of PVC, the heating disc 12 is provided with a hanging hole 1201, the diameter of the hanging hole 1201 is smaller than the diameter of the hanging pin 4, and the hanging hole 1201 is a reference position with the first shell 101, the diameter of the front end of the hanging pin 4 is larger than the diameter of the rear end, so that the heating disc 12 can be stably hung on the hanging pin 4, and the falling of the heating disc 12 is avoided. The gap hole 5 can avoid the interference between the hanging pin 4 and the second working part 2, and ensure the heating effect of the blood purification pipeline. When the work is completed, the heating disc 12 can be taken off from the hanging pin 4, which is convenient to operate. The blood purification pipeline can also be arranged in sequence vertically or horizontally, which is not limited here.

[0068] Further, as shown in Figure 1 and Figure 2 The first heat insulation plate 102 is provided with a micro switch 6, and the second heat insulation plate 202 is provided with a convex point 7 matched with the micro switch 6.

[0069] Through the matched arrangement of the micro switch 6 and the convex point 7, the opening and closing conditions of the first working part 1 and the second working part 2 can be detected.

[0070] Further, as shown in Figure 1 and Figure 2 The first heat insulation plate 102 and the second heat insulation plate 202 are both provided with a heat conduction plate 3.

[0071] Through the arrangement of the heat conduction plate 3, the heating of the blood purification pipeline by the first working part 1 and the second working part 2 can be more uniform, and the heating effect of the device can be improved.

[0072] Further, as shown in Figure 3 and Figure 4 The connecting assembly includes a first connecting part 8 and a second connecting part 9.

[0073] As shown in Figure 7 and Figure 8 The first connecting part 8 includes a first connecting piece 801 arranged on the lower side of the first shell 101 and a second connecting piece 802 arranged on the lower side of the second shell 201, the first connecting piece 801 is provided with a convex 8011 and a guide groove 8012, and the second connecting piece 802 is provided with a through groove 8021 matched with the convex 8011 and a guide pin 8022 matched with the guide groove 8012.

[0074] The second connecting part 9 includes a third connecting piece 901 arranged on the upper side of the first shell 101 and a fourth connecting piece 902 arranged on the upper side of the second shell 201, the third connecting piece 901 and the fourth connecting piece 902 partially intersect, and the intersection is provided with a mounting hole 903 penetrating through the third connecting piece 901 and the fourth connecting piece 902.

[0075] The first connecting piece 801 and the second connecting piece 802 are fixedly installed at the bottom of the first shell 101 and the second shell 201 respectively, the first connecting piece 801 partially overlaps the second connecting piece 802, the second connecting piece 802 is rotatably arranged on the protrusion 8011 through the through slot 8021, and the second working part 2 is driven to rotate. The guide pin 8022 moves synchronously in the guide slot 8012 along with the rotation of the second connecting piece 802, and the maximum opening angle between the first working part 1 and the second working part 2 can be limited through the limitation of the guide slot 8012. The maximum opening angle is limited between 90° and 95°, when the maximum opening angle is greater than 95°, the second working part 2 will interfere with the blood purification equipment; when the maximum opening angle is less than 90°, the second working part 2 will affect the hand, thereby affecting the installation or removal of the heating disc 12; the best maximum opening angle is 93°.

[0076] The wires accessed into the second heat insulation plate 202 can be accessed through the mounting hole 903 and then through the wiring slot 204, so that the appearance of the device is more neat.

[0077] Further, as shown in Figure 3 and Figure 4 , it also includes a first wire guard 10 and a second wire guard 11, the first wire guard 10 is arranged on the second connecting part 9, and the first wire guard 10 is arranged on the upper side of the mounting hole 903, the second wire guard 11 is fixedly installed on the second shell 201, and the second wire guard 11 is arranged on the lower side of the mounting hole 903, and the second wire guard 11 is used to shield the wiring slot 204.

[0078] When the device is designed, it is considered that there is no wire exposed after the cover is opened, and the wires can be shielded through the first wire guard 10 and the second wire guard 11.

Claims

1. A locking component, characterized in that: It includes a latch (13) and a locking part (14). The latch (13) is fixedly installed on the first working part (1), and the locking part (14) is disposed on the second working part (2). The latch (13) and the locking part (14) are configured to lock the first working part (1) and the second working part (2) together. The locking part (14) includes a locking tongue (1401) rotatably disposed on the second working part (2) and engaged with the latch (13), a fixed seat (1402) fixedly mounted on the second working part (2), and a pressure block (1403) rotatably mounted on the fixed seat (1402). A torsion spring (1406) for resetting the pressure block (1403) is provided between the pressure block (1403) and the fixed seat (1402). The surface of the locking tongue (1401) near the pressure block (1403) is inclined. A guide rod (1404) abutting against the inclined surface is fixedly mounted on the pressure block (1403). An elastic element (1407) for resetting the locking tongue (1401) is provided between the fixed seat (1402) and the locking tongue (1401).

2. A flowing liquid heater, characterized in that, The device includes the locking assembly as described in claim 1, wherein a connecting assembly is provided between the first working part (1) and the second working part (2) for hinged together, a heating part is provided in the first working part (1) and / or the second working part (2), the second working part (2) can rotate around the connecting assembly and fits against the first working part (1) to form a cavity for heating the extracorporeal blood purification pipeline, and inlet and outlet (15) are provided on the first working part (1) and / or the second working part (2) for the extracorporeal blood purification pipeline to enter and exit.

3. A flowing liquid heater according to claim 2, characterized in that, The heating part includes a first heating element (103) and a second heating element (203). The first working part (1) includes a first outer shell (101) and a first heat insulation plate (102) fixedly installed inside the first outer shell (101). The first heating element (103) is disposed inside the first heat insulation plate (102). The first outer shell (101) has a wire hole (104) communicating with the inside of the first heat insulation plate (102). The second working part (2) includes a second outer shell (201) and a second heat insulation plate (202) fixedly installed inside the second outer shell (201). The second heating element (203) is disposed inside the second heat insulation plate (202). A wiring groove (204) communicating with the inside of the second heat insulation plate (202) is opened on the second outer shell (201). The connecting component is disposed between the first outer shell (101) and the second outer shell (201).

4. A flowing liquid heater according to claim 3, characterized in that, The first heat insulation plate (102) has a through hole, and a hanging pin (4) is fixedly installed on the first outer shell (101) inside the through hole. The second heat insulation plate (202) has a clearance hole (5) that cooperates with the hanging pin (4).

5. A flowing liquid heater according to claim 3 or 4, characterized in that, A micro switch (6) is provided on the first heat insulation plate (102), and a protrusion (7) is provided on the second heat insulation plate (202) to cooperate with the micro switch (6).

6. A flowing liquid heater according to claim 3 or 4, characterized in that, Heat-conducting plates (3) are provided on both the first heat insulation plate (102) and the second heat insulation plate (202).

7. A flowing liquid heater according to claim 3 or 4, characterized in that, The connecting component includes a first connecting part (8) and a second connecting part (9); The first connecting part (8) includes a first connecting member (801) disposed on the lower side of the first housing (101) and a second connecting member (802) disposed on the lower side of the second housing (201). The first connecting member (801) is provided with a protrusion (8011) and a guide groove (8012). The second connecting member (802) is provided with a through groove (8021) that cooperates with the protrusion (8011) and a guide pin (8022) that cooperates with the guide groove (8012). The second connecting part (9) includes a third connecting member (901) disposed on the upper side of the first housing (101) and a fourth connecting member (902) disposed on the upper side of the second housing (201). The third connecting member (901) and the fourth connecting member (902) partially intersect, and a mounting hole (903) is provided at the intersection, which simultaneously penetrates the third connecting member (901) and the fourth connecting member (902).

8. A flowing liquid heater according to claim 5, characterized in that, The connecting component includes a first connecting part (8) and a second connecting part (9); The first connecting part (8) includes a first connecting member (801) disposed on the lower side of the first housing (101) and a second connecting member (802) disposed on the lower side of the second housing (201). The first connecting member (801) is provided with a protrusion (8011) and a guide groove (8012). The second connecting member (802) is provided with a through groove (8021) that cooperates with the protrusion (8011) and a guide pin (8022) that cooperates with the guide groove (8012). The second connecting part (9) includes a third connecting member (901) disposed on the upper side of the first housing (101) and a fourth connecting member (902) disposed on the upper side of the second housing (201). The third connecting member (901) and the fourth connecting member (902) partially intersect, and a mounting hole (903) is provided at the intersection, which simultaneously penetrates the third connecting member (901) and the fourth connecting member (902).

9. A flowing liquid heater according to claim 6, characterized in that, The connecting component includes a first connecting part (8) and a second connecting part (9); The first connecting part (8) includes a first connecting member (801) disposed on the lower side of the first housing (101) and a second connecting member (802) disposed on the lower side of the second housing (201). The first connecting member (801) is provided with a protrusion (8011) and a guide groove (8012). The second connector (802) is provided with a through groove (8021) that mates with the protrusion (8011) and a guide pin (8022) that mates with the guide groove (8012); The second connecting part (9) includes a third connecting member (901) disposed on the upper side of the first housing (101) and a fourth connecting member (902) disposed on the upper side of the second housing (201). The third connecting member (901) and the fourth connecting member (902) partially intersect, and a mounting hole (903) is provided at the intersection, which simultaneously penetrates the third connecting member (901) and the fourth connecting member (902).

10. A flowing liquid heater according to claim 7, characterized in that, It also includes a first wire guard (10) and a second wire guard (11). The first wire guard (10) is disposed on the second connecting part (9) and is disposed on the upper side of the mounting hole (903). The second wire guard (11) is fixedly installed on the second housing (201) and is disposed on the lower side of the mounting hole (903). The second wire guard (11) is used to shield the wiring groove (204).

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