Housing mounting structure

Abstract

The technical scheme belongs to the technical field of pump machines, and particularly relates to a shell mounting structure which comprises a mounting seat and a rear cover plate, the rear cover plate abuts against a mounting frame to cover a mounting cavity and comprises a top cover and a side cover, a positioning bolt of the mounting seat is embedded in a corresponding insertion hole to achieve positioning, and a limiting piece of the side cover extends towards the interior of the mounting cavity. After the limiting grooves of the limiting pieces are correspondingly embedded towards the limiting strips, the side covers are correspondingly embedded into the butt joint holes through the first limiting parts, the connecting protruding blocks are correspondingly embedded into the connecting holes to achieve detachable connection with the mounting base, the top cover is correspondingly embedded into the butt joint grooves through the second limiting parts, and the insertion strips are correspondingly embedded into the insertion grooves to achieve detachable connection with the side covers. The fixing portion of the knob penetrates through the mounting hole and then is embedded into the embedding hole, the positioning protruding block is embedded into the inserting groove of the fixing channel correspondingly, the knob is rotated to enable the positioning protruding block to slide along the guide groove, the knob abuts against the top cover to achieve fixed connection between the top cover and the mounting frame, the overall mounting fixity of the rear cover plate is further improved, and therefore the pump body shell assembling efficiency is improved.

Description

Technical Field

[0001] The technical solution relates to the technical field of pump machines, and in particular to a casing installation structure. Background Art

[0002] A pump is a device that can transfer liquid or gas from a low-pressure area to a high-pressure area.

[0003] For example, a Chinese self-priming pump with built-in pressure tank with patent announcement number CN207554361U includes a pump body and a motor, a water outlet channel is formed in the pump body, a pressure tank flow channel is branched and penetrated in the water outlet channel, a cross-section surrounded by the outer periphery of the top surface of the motor extends upward to the top surface of the pump body to form an installation space, and a cover box is provided in the installation space; the cover box is fixed to the top surface of the motor, and a plurality of heat sinks are provided on the end surface of the cover box matching the top surface of the motor; a accommodating groove is provided on one side of the cover box adjacent to the pump body, and a fixing platform is provided on the other side, the fixing platform is higher than the bottom surface of the accommodating groove, and a cover box cover is covered on the cover box, the cover box cover covers the pressure tank and the circuit control device, and the cover box is fixedly connected to the cover box by bolts.

[0004] In the above-mentioned self-priming pump, the pump housing and the pump body are fixedly connected and fixed by multiple bolts, which makes the disassembly and assembly process complicated and the assembly efficiency is low, which needs to be improved. Summary of the invention

[0005] In order to improve the problem of low assembly efficiency of a pump housing, the present technical solution provides a housing installation structure.

[0006] The purpose of this technical solution is achieved in this way:

[0007] A shell mounting structure includes a mounting base and a mounting cavity arranged on the mounting base, the mounting base is provided with a rear cover plate, the mounting base has a mounting frame, the rear cover plate is provided with a snap buckle, the mounting base is correspondingly provided with a docking hole, the rear cover plate is embedded in the docking hole by the snap buckle to achieve installation, the rear cover plate is provided with a knob, the rear cover plate is provided with a mounting hole, the knob passes through the mounting hole and is detachably connected to the mounting frame for pressing the rear cover plate to achieve fixation.

[0008] Through the above technical scheme, when the shell mounting structure is in normal use, an installation cavity is opened in the mounting seat, and the installation cavity is used to place the motor, the pressure tank and the circuit control device. The mounting frame is erected on the mounting seat and bent relative to the installation cavity to make way. The rear cover plate faces the installation frame and is installed on the mounting seat. A snap buckle 1 is fixed on the rear cover plate, and the snap buckle 1 is arranged toward the mounting seat. The snap buckle 1 is aligned with the docking hole and then embedded to achieve fixed installation, so that the connection method between the rear cover plate and the mounting seat is faster. A mounting hole is opened on the rear cover plate, and a knob is also installed on the rear cover plate. The knob is adapted to the mounting hole. After the knob is embedded in the mounting hole, it is detachably connected to the mounting frame, and the knob abuts against the end face of the top end of the rear cover plate. The knob is turned to press the top end of the rear cover plate against the mounting frame, thereby further improving the fixity of the installation of the rear cover plate, thereby improving the assembly efficiency of the pump body shell.

[0009] Preferably, the rear cover plate includes a top cover and a side cover, the snap buckle 1 is arranged on the side cover, the top cover is provided with a snap buckle 2, the mounting frame is provided with a docking groove, and the top cover is installed by correspondingly fitting the snap buckle 2 with the docking groove.

[0010] Through the above technical solution, the top cover and the side cover are spliced ​​to form a rear cover plate, and the combined installation method improves applicability so that the top cover can be disassembled independently. The snap buckle 1 is located at the lower end of the side cover, and the snap buckle 2 is installed on the side cover. The snap buckle 2 is located on the end surface of the top cover facing the side cover. The snap buckle 2 is aligned with the docking groove and then embedded to achieve fixed installation, which makes the connection between the top cover and the side cover faster, optimizes the installation structure, and further improves the installation efficiency of the pump body casing.

[0011] Preferably, the snap-on buckle 1 includes a limiting part 1 and an elastic part 1, the snap-on buckle 1 is embedded in the docking hole after the elastic deformation of the elastic part 1, the limiting part 1 passes through the docking hole and abuts against the mounting seat to form a positioning, the snap-on buckle 2 includes a limiting part 2 and an elastic part 2, the snap-on buckle 2 is embedded in the docking groove after the elastic deformation of the elastic part 2, and the end face of the limiting part 2 facing the docking groove abuts against the mounting frame to form a positioning.

[0012] Through the above technical scheme, the snap buckle 1 is correspondingly embedded in the docking hole, and the snap buckle 2 is correspondingly embedded in the docking groove, the limiting part 1 and the elastic part 1 are distributed in the vertical direction, and the elastic part 1 has an inclined surface. The inclined surface of the elastic part 1 is guided along the side wall of the docking hole and contacts to be deformed and then passes through the docking hole, so that the limiting part 1 abuts against the mounting seat, and at the same time, the limiting part 2 and the elastic part 2 are distributed in the vertical direction, and the elastic part 2 also has an inclined surface. The inclined surface of the elastic part 2 is guided along the inclined surface of the side wall of the docking groove and contacts to be deformed, so that the limiting part 2 abuts against the mounting frame, thereby improving the positioning accuracy and further improving the assembly efficiency.

[0013] Preferably, the knob includes a fixed part and a manual part, the fixed part is provided with a fixed channel, the fixed channel includes a slot and a guide groove, the guide groove is circumferentially arranged to be connected with the slot and penetrates to the outside of the fixed part toward the end away from the manual part, the mounting frame is provided with an embedding hole, a positioning protrusion is fixed along the inner wall of the embedding hole, and the positioning protrusion slides along the slot and is rotated to be embedded in the guide groove to achieve positioning, the guide groove is provided with a guide surface, and the inclination direction of the guide surface makes the width of the limiting groove expand toward the slot direction.

[0014] Through the above technical scheme, the knob is installed on the mounting frame for cooperation, the manual part and the fixed part are distributed up and down along the central axis of the knob in sequence, a fixing channel is opened on the outer peripheral wall of the hand fixing part, one end of the slot is connected to the outside of the fixing part, the fixing part passes through the mounting hole and is embedded in the embedding hole, the slot and the positioning protrusion are correspondingly embedded, so that the manual part abuts against the upper end surface of the top cover, the guide groove is circumferentially arranged along the outer peripheral wall, the slot is connected to the guide groove and is perpendicular to the guide groove, the positioning protrusion slides along the flared opening in the inclined direction of the guide surface and slides into the guide groove, by rotating the manual part, the design of the moving part provides a rotation force point, which is convenient for rotating the knob, the guide groove corresponds to the positioning protrusion rotating circumferentially and abuts against the inner wall of the guide groove, so as to realize the tight connection of the knob, enhance the fixing stability, and improve the convenience at the same time.

[0015] Preferably, the mounting seat is provided with a positioning pin, the rear cover plate is provided with a plug hole, and the positioning pin is embedded in the plug hole to achieve fixation.

[0016] Through the above technical solution, the plug-in hole vertically penetrates the rear cover plate and contacts with the positioning pin. The shape and size of the plug-in hole are consistent with the positioning pin. The positioning pin is embedded in the plug-in hole to achieve positioning, further improving the stability of installation positioning.

[0017] Preferably, the side cover is provided with a limiting plate, the limiting plate extends toward the mounting cavity, the limiting plate is provided with a limiting groove near one end of the mounting seat, the mounting seat is fixed with a limiting strip embedded in the limiting groove to achieve fixation, and the limiting groove is flared toward the limiting strip.

[0018] Through the above technical solution, the limiting groove of the limiting plate is expanded toward the limiting strip, and the side cover is close to the mounting seat so that the limiting strip is embedded into the limiting groove from the expanded position, so that the side cover is against the mounting seat, and the limiting groove can be adjusted along the length direction of the limiting strip, so that the mounting seat can be vertically moved to a fixed position relative to the mounting seat, which is convenient for removing the side panel, and improves the accuracy of the side cover installation positioning, thereby improving convenience.

[0019] Preferably, a connecting protrusion is provided on one side of the side cover close to the mounting seat, and the mounting seat is provided with a connecting hole corresponding to the connecting protrusion, and the connecting protrusion is embedded in the connecting hole to achieve fixation.

[0020] Through the above technical solution, the side cover is fixed with several connecting protrusions toward the mounting seat, and the mounting seat is correspondingly provided with several connecting holes. The number of connecting holes and connecting protrusions is the same and the positions correspond one to one. The connecting protrusions and the connecting holes are correspondingly embedded to achieve fixation, thereby strengthening the mounting structure and improving the stability of the fixation.

[0021] Preferably, the top cover is provided with an upper cover groove, which is provided on the end surface of the top cover facing the installation cavity, and the upper cover groove is used to accommodate the installation frame and the top of the side cover, and the top cover covers the installation cavity to achieve installation.

[0022] Through the above technical solution, the upper cover groove is set towards the installation cavity to provide a clearance space, effectively improve the utilization rate of the internal space of the installation cavity, and increase the plannable space range of the internal structure. The upper cover groove is used to accommodate the top of the installation frame and the top of the side cover, thereby enhancing the protection effect and improving stability.

[0023] Preferably, the side cover is further provided with an embedding groove, which is arranged on the end surface of the snap buckle on the side facing away from each other, and the top cover is further provided with an embedding strip, which extends toward the upper cover groove and is embedded in the embedding groove to limit the side cover from separating from the top cover.

[0024] Through the above technical solution, the top cover is fixed with several embedding strips toward the side cover, and the side cover is correspondingly provided with several embedding grooves, the number of the embedding grooves is the same as that of the embedding strips and the positions correspond one to one, the embedding strips and the embedding grooves are correspondingly embedded to achieve fixation, strengthen the installation structure, and further improve the stability of the fixation.

[0025] Preferably, the mounting seat is provided with a cover opening groove, and the side cover abuts against the cover opening groove to provide a space for opening the cover.

[0026] Through the above technical solution, the side cover is against the mounting seat when installed, and a clearance space is formed between the cover opening groove and the lower end surface of the side cover. The cover opening groove is probed into manually or with tools, and the cover opening groove provides a force point for pushing the side cover upward. The side cover is pried upward for removal, thereby facilitating the separation of the side cover from the mounting seat and improving convenience.

[0027] Compared with the prior art, the technical solution has the following outstanding and beneficial technical effects:

[0028] 1. This technical solution optimizes the installation structure and improves assembly efficiency by installing a number of snap-on buckles 1 on the side cover, opening a corresponding number of docking holes on the mounting seat, and the snap-on buckles 1 are matched with the docking holes one by one. After the elastic part 1 is deformed, it passes through the docking hole so that the limiting part 1 is against the side wall of the docking hole for positioning, thereby optimizing the installation structure and improving assembly efficiency;

[0029] 2. This technical solution optimizes the installation structure and further improves the assembly efficiency by installing a plurality of snap-fit ​​buckles 2 on the top cover and opening a corresponding number of docking grooves on the installation frame. The snap-fit ​​buckles 2 are matched with the docking grooves one by one. After the elastic part 2 is deformed, the limiting part 2 is positioned against the side wall of the docking groove through the docking groove.

[0030] 3. This technical solution further improves the stability of the connection between the side cover and the mounting seat by providing a connecting protrusion on the side cover and a connecting hole for the connecting protrusion to be embedded in the mounting seat, and further improves the stability of the connection between the top cover and the side cover by providing an embedding strip on the top cover and an embedding groove for the embedding strip to be embedded in the side cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0032] Figure 2 It is a partial explosion schematic diagram of this embodiment;

[0033] Figure 3 is a schematic diagram of the specific structure of the side cover in this embodiment;

[0034] Figure 4 Schematic diagram of the specific structure of the top cover in this embodiment;

[0035] Figure 5 Schematic diagram of the specific structure of the knob in this embodiment.

[0036] : 1. mounting seat; 2. mounting frame; 3. mounting cavity; 4. rear cover; 41. top cover; 42. side cover; 5. snap-fit ​​buckle 1; 51. limiting part 1; 52. elastic part 1; 6. docking hole; 7. knob; 71. fixing part; 72. manual part; 8. mounting hole; 9. positioning protrusion; 10. snap-fit ​​buckle 2; 101. limiting part 2; 102. elastic part 2; 11. docking groove; 12. fixing channel; 121. slot; 122. guide groove; 13. guide surface; 14. positioning pin; 15. plug-in hole; 16. limiting piece; 17. limiting groove; 18. limiting strip; 19. connecting protrusion; 20. connecting hole; 21. upper cover groove; 22. embedding groove; 23. embedding strip; 24. cover opening groove; 25. embedding hole. DETAILED DESCRIPTION

[0037] The specific implementation of the technical solution is further described in detail below with reference to the accompanying drawings.

[0038] Example:

[0039] See also Figure 1A shell mounting structure includes a mounting base 1, on which a rear cover plate 4 is mounted, the rear cover plate 4 is detachably connected to the mounting base 1, the rear cover plate 4 is provided with two cover plates, the two cover plates respectively include a top cover 41 and a side cover 42, the top cover 41 and the side cover 42 are vertically distributed, and in terms of the distribution position, the top cover 41 is located at the upper end of the side cover 42, and the top cover 41 and the side cover 42 are detachably connected.

[0040] See also Figure 2 and Figure 3 The mounting base 1 is provided with a mounting cavity 3, which is opened relative to the internal space of the mounting base 1. In this example, the mounting cavity 3 is used to accommodate a power supply machine, a pressure tank and a circuit control device. The mounting base 1 also has a mounting frame 2, which is mounted at the through-opening of the mounting base 1. The mounting frame 2 is bent relative to the mounting cavity 3 to make way. The contact surface between the mounting frame 2 and the mounting base 1 is welded and fixed. The shape of the side cover 42 is adapted to the shape of the mounting frame 2. The side cover 42 is arranged toward the mounting frame 2. The inner wall of the side cover 42 abuts against the mounting frame 2 to cover the opening on the side of the mounting cavity 3, and the lower end surface of the side cover 42 abuts against the mounting base 1.

[0041] The side cover 42 is detachably connected to the mounting seat 1. The specific detachable connection method can be that a plurality of snap-fit ​​buckles 5 are provided on the rear cover plate 4, and the plurality of snap-fit ​​buckles 5 are provided on the side plate. In this example, a situation where two snap-fit ​​buckles 5 are provided, each snap-fit ​​buckle 5 is located at the lower end of the side cover 42, and the two snap-fit ​​buckles 5 are protruded and fixed relative to the end surface of the side cover 42 facing the mounting seat 1, and the fixing directions of the two snap-fit ​​buckles 5 are parallel to each other and spaced apart. The snap-fit ​​buckle 5 includes a limiting portion 51 and an elastic portion 52. The elastic portion 52 is made of elastic material and has the ability of elastic deformation. The limiting portion 51 and the elastic portion 52 are distributed in the vertical direction, and in the distribution direction, the elastic portion 52 is located at the limiting portion 51. On the side away from the side plate, the elastic part 52 has an inclined surface 1 in this example, and the inclined surface 1 is inclined toward the side away from the side plate. The mounting seat 1 is provided with a plurality of docking holes 6, and the docking holes 6 correspond to the connection positions of the side cover 42 and pass through the mounting seat 1. The example shows that there are two docking holes 6, and the two docking holes 6 are arranged one-to-one with the two snap buckles 5, and the two snap buckles 5 are correspondingly embedded in the two docking holes 6 to achieve fixation; when the snap buckles 5 are aligned with the docking holes 6 and embedded, the inclined surface 1 is guided and embedded along the inner wall of the docking hole 6, and the elastic part 52 is elastically deformed and embedded into the docking hole 6, and the elastic part 52 passes through the docking hole 6 so that the limiting part 51 is correspondingly abutted against the mounting seat 1 to achieve positioning.

[0042] The mounting seat 1 is provided with a limit strip 18, and the limit strip 18 is provided with multiple. In this example, the case where two limit strips 18 are provided is shown. The two limit strips 18 are respectively located on both sides of the mounting seat 1. The length directions of the two limit strips 18 are both arranged vertically relative to the mounting seat 1. The side wall on one side of the length direction is fixedly connected to the mounting seat 1, and the two limit strips 18 are both protruding toward the direction of the side cover 42. The side cover 42 is provided with two limit pieces 16, and the two limit pieces 16 are fixed on the side of the side cover 42 facing the mounting seat 1. The two limit pieces 16 are respectively located on both sides of the side cover 42, and the two limit pieces 16 are both facing The limiting plate 16 extends into the installation cavity 3, and each limiting plate 16 is also provided with a limiting groove 17. The limiting groove 17 passes through the limiting plate 16 in the vertical direction. The two limiting grooves 17 correspond to the two limiting plates 16 one by one, and the two limiting plates 16 correspond to the two limiting strips 18 one by one. The notch directions of the two limiting grooves 17 are both set toward the limiting strip 18, and the notch of each limiting groove 17 is expanded. The limiting groove 17 is adapted to the limiting strip 18, and the limiting strip 18 is embedded in the limiting groove 17. The limiting plate 16 slides along the limiting strip 18 to guide the side cover 42 and the mounting seat 1 in the vertical direction. Positioning.

[0043] The mounting base 1 is provided with a positioning pin 14, and there are two positioning pins 14. The two positioning pins 14 are respectively located on both sides of the mounting base 1, and the two positioning pins 14 are fixedly connected to the mounting base 1. The two positioning pins 14 are both located at the top of the mounting base 1 and both protrude vertically upward. The side cover 42 is provided with two plug-in holes 15, and the two plug-in holes 15 are arranged one-to-one with the two positioning pins 14. The two plug-in holes 15 pass through the end surface of the top of the side cover 42. The two plug-in holes 15 are respectively located on both sides of the side cover 42. When the limit strip 18 is correspondingly embedded in the limit groove 17, the side cover 42 slides downward and abuts against the mounting base 1. The two plug-in holes 15 are adapted to the two positioning pins 14, and the two positioning pins 14 are correspondingly embedded in the two plug-in holes 15 to limit the side cover 42 from being separated from the mounting base 1 in the horizontal direction.

[0044] The mounting base 1 is provided with a connecting protrusion 19, and there are multiple connecting protrusions 19, each connecting protrusion 19 is located at the lower end of the side cover 42, each connecting protrusion 19 is fixed and protrudes from the end surface of the side cover 42 facing the mounting base 1, each connecting protrusion 19 is arranged at intervals, and the spacing directions are parallel to each other, and each connecting protrusion 19 is adapted to the thin wall thickness of the side cover 42; the mounting base 1 is provided with a plurality of connecting holes 20, each connecting hole 20 passes through the mounting base 1 corresponding to the connecting position of the side cover 42, each connecting hole 20 corresponds to the position of each connecting protrusion 19 one by one, each connecting hole 20 corresponds to the upper end surface of the connecting position of the side cover 42 that passes through the mounting base 1, the connecting hole 20 is adapted to the corresponding connecting protrusion 19, and each connecting protrusion 19 is correspondingly embedded in each connecting hole 20 to further improve the fixed installation of the side cover 42 and the mounting base 1.

[0045] The mounting base 1 is provided with a plurality of cover opening slots 24, each of which is disposed on the upper end surface of the mounting base 1, and the notch of each cover opening slot 24 faces upwards. When the side cover 42 abuts against the cover opening slot 24, the cover opening slot 24 provides a clearance space relative to the lower end surface of the side cover 42, so as to allow manual or tool insertion into the cover opening slot 24 and pry the side cover 42 upwards for disassembly.

[0046] See also Figure 2 and Figure 4 The side cover 42 is provided with an upper cover groove 21, which is provided on the end surface of the top cover 41 facing the mounting cavity 3. The upper cover groove 21 is used to accommodate the top of the mounting frame 2 and the side cover 42. When the top cover 41 is against the mounting seat 1, it covers the upper end opening of the mounting cavity 3.

[0047] The top cover 41 is detachably connected to the side cover 42. The specific detachable connection method can be that a plurality of snap-fit ​​buckles 10 are provided on the top cover 41. The plurality of snap-fit ​​buckles 10 are arranged on the top cover 41. Each snap-fit ​​buckle 10 is located in the upper cover groove 21. Each snap-fit ​​buckle 15 is located at the bottom of the upper cover groove 21 and protrudes toward the mounting frame 2 for fixing. The fixing directions of each snap-fit ​​buckle 10 are parallel to each other and spaced apart. The snap-fit ​​buckle 10 includes a limiting portion 101 and an elastic portion 102. The elastic portion 102 is made of an elastic material and has the ability of elastic deformation. The limiting portion 101 and the elastic portion 102 are distributed in the vertical direction, and in the distribution direction, the elastic portion 102 is located on the side of the limiting portion 101 away from the top cover 41. In this example, the elastic portion 102 has an inclined surface 2, and the inclined surface 2 is inclined toward the side away from the top cover 41. The mounting frame 2 is inclined and is provided with a plurality of docking grooves 11, each of which is opened in a vertical direction. In this example, a situation is shown in which an inclined surface three is provided in the docking groove 11, and the inclined surface three has the same inclination direction as the inclined surface two. The two docking grooves 11 are provided with two snap buckles 2 10 in a one-to-one correspondence, and each snap buckle 2 10 is correspondingly embedded in each docking groove 11 for fixing; when the snap buckle 2 10 is aligned with the docking groove 11 and embedded, the inclined surface two is embedded after being guided along the inclined surface of the inclined surface three, and the elastic part 2 102 is elastically deformed and embedded in the docking groove 11, and the elastic part 2 102 passes through the docking groove 11 so that the limiting part 2 101 corresponds to the mounting frame 2 for positioning. Alternatively, a threaded hole can be provided in the top cover 41, and a fixing bolt is passed through the threaded hole and embedded in the side cover 42 to realize a threaded connection between the top cover 41 and the side cover 42.

[0048] The top cover 41 is provided with a fillet 23, and there are multiple fillets 23. Each fillet 23 is located in the upper cover groove 21 and extends toward the upper cover groove 21. Each fillet 23 is fixed to the bottom of the upper cover groove 21 and protrudes toward one side of the side cover 42. Each fillet 23 is arranged at intervals, and the spacing directions are parallel to each other. In this example, the fillet 23 is provided with a groove, and the groove corresponds to the fillet 23 one by one. The opening of the groove is toward the end of the fillet 23 away from the bottom of the upper cover groove 21; the side cover 4 A plurality of embedding grooves 22 are provided, each embedding groove 22 corresponds to the connection position between the side cover 42 and the top cover 41 and passes through the side cover 42, each embedding groove 22 corresponds to the position of each embedding strip 23, each embedding groove 22 corresponds to the upper end surface of the connection position between the side cover 42 and the top cover 41, the embedding groove 22 is adapted to the corresponding embedding strip 23, each embedding strip 23 is embedded in each embedding groove 22, and the groove is used to provide a space for the embedding strip 23 to be embedded, so as to further improve the fixed installation of the top cover 41 and the side cover 42.

[0049] See also Figure 2 and Figure 5 The rear cover plate 4 is also provided with a knob 7, which is mounted on the top cover 41. The top cover 41 is provided with a mounting hole 8. The knob 7 and the mounting hole 8 are correspondingly fitted. The knob 7 and the top cover 41 are detachably connected. The knob 7 is divided into two parts along the central axis. The two parts respectively include a fixed part 71 and a manual part 72. The fixed part 71 and the manual part 72 are vertically distributed. The manual part 72 is located at the upper end of the fixed part 71. The fixed part 71 is provided with two fixed channels 12. The two fixed channels 12 are respectively provided on the side walls on both sides of the fixed part 71. The two fixed channels 12 each include a slot 121 and a guide groove 122. Each guide groove 122 and the slot 1 21 are connected in a one-to-one correspondence, the guide groove 122 penetrates along the circumference of the fixing portion 71, the slot 121 is arranged perpendicular to the guide groove 122, one end of the slot 121 is connected to the guide groove 122, and the other end penetrates to the outside of the fixing portion 71 toward the lower end of the fixing portion 71, each guide groove 122 is provided with a guide surface 13, the two guide surfaces 13 correspond to the two guide grooves 122 in a one-to-one manner, the inclined direction of the guide surface 13 is arranged toward the embedding groove 22, the top cover 41 is provided with a mounting hole 8, the mounting hole 8 is arranged through the top cover 41, the mounting frame 2 is provided with an embedding hole 25, the embedding hole 25 penetrates the mounting frame 2 in the vertical direction, and the mounting hole 8 is correspondingly connected to the penetration of the mounting frame 2.

[0050] The mounting frame 2 is provided with two positioning protrusions 9, and the two positioning protrusions 9 are located in the embedding holes 25. The two positioning protrusions 9 are both protruding relative to the inner wall of the embedding holes 25, and the two positioning protrusions 9 correspond to the two fixing channels 12 one by one. When the top cover 41 abuts against the side cover 42, the fixing portion 71 passes through the mounting hole 8 and is embedded in the embedding hole 25, and the positioning protrusion 9 is embedded in the slot 121 and slides along the through direction of the slot 121, and the manual portion 72 abuts against the upper end surface of the top cover 41. By rotating the manual portion 72, the positioning protrusion 9 transitions into the guide groove 122 along the inclined direction of the guide surface 13, and slides to the bottom of the groove along the guide groove 122, so as to realize the fixation between the top cover 41 and the mounting frame 2. Alternatively, a threaded structure can be provided on the knob 7, and the threaded structure protrudes along the outer peripheral wall of the fixing portion 71. The embedding hole 25 is correspondingly provided with an internal thread along the inner peripheral wall, and the knob 7 is threadedly connected to the mounting frame 2 through the adaptation of the threaded structure and the internal thread.

[0051] The specific working process of this program is as follows:

[0052] The technical solution is to open a mounting cavity 3 on the mounting seat 1, and the rear cover plate 4 is against the mounting frame 2 to cover the mounting cavity 3. The rear cover plate 4 includes a top cover 41 and a side cover 42. The positioning pin 14 of the mounting seat 1 corresponds to the plug-in hole 15 of the side cover 42 to achieve positioning. The limiting piece 16 of the side cover 42 extends into the mounting cavity 3. After the limiting groove 17 of the limiting piece 16 is correspondingly fitted toward the limiting strip 18, the side cover 42 is correspondingly embedded in the docking hole 6 through the limiting portion 151, and the connecting protrusion 19 is correspondingly embedded in the connecting hole 20 to achieve detachable connection with the mounting seat 1. The top cover 41 is connected to the mounting seat 1 through the limiting portion 51. The second 101 is correspondingly embedded in the docking groove 11, and the embedding strip 23 is correspondingly embedded in the embedding groove 22 to realize the detachable connection with the side cover 42. The fixing part 71 of the knob 7 passes through the mounting hole 8 and is embedded in the embedding hole 25. The manual part 72 abuts against the upper end surface of the top cover 41, and the slot 121 of the fixed channel 12 is embedded in the corresponding positioning protrusion 9. The knob 7 is rotated to make the guide groove 122 slide and guide the corresponding positioning protrusion 9, so that the knob 7 is pressed against the top cover 41 to realize the fixation between the top cover 41 and the mounting frame 2, further improving the fixity of the overall installation of the rear cover 4, thereby improving the assembly efficiency of the pump body shell.

[0053] The above shows and describes the basic principle and main features of the technical solution and the advantages of the technical solution. The technicians in this industry should understand that the technical solution is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the technical solution. Without departing from the spirit and scope of the technical solution, the technical solution will have various changes and improvements, which fall within the scope of the technical solution to be protected. The scope of protection claimed by the technical solution is defined by the attached claims and their equivalents.

Claims

1. A housing mounting structure, comprising a mounting seat (1) and a mounting cavity (3) arranged on the mounting seat (1), characterized in that: The mounting seat (1) is provided with a rear cover plate (4), the mounting seat (1) has a mounting frame (2), the rear cover plate (4) is provided with a snap-fit ​​buckle (5), the mounting seat (1) is provided with a corresponding docking hole (6), the rear cover plate (4) is installed by embedding the snap-fit ​​buckle (5) into the docking hole (6), the rear cover plate (4) is provided with a knob (7), the rear cover plate (4) is provided with a mounting hole (8), the knob (7) passes through the mounting hole (8) and is detachably connected to the mounting frame (2) for pressing the rear cover plate (4) to achieve fixation.

2. The housing installation structure according to claim 1, characterized in that: The rear cover plate (4) comprises a top cover (41) and a side cover (42); the first snap-fit ​​buckle (5) is arranged on the side cover (42); the top cover (41) is provided with a second snap-fit ​​buckle (10); the mounting frame (2) is provided with a docking groove (11); and the top cover (41) is mounted by correspondingly fitting the second snap-fit ​​buckle (10) with the docking groove (11).

3. The housing installation structure according to claim 2, characterized in that: The snap-on buckle (5) comprises a limiting portion (51) and an elastic portion (52), the snap-on buckle (5) is embedded in the docking hole (6) after being elastically deformed by the elastic portion (52), the limiting portion (51) passes through the docking hole (6) and abuts against the mounting seat (1) to form a positioning, and the snap-on buckle (10) comprises a limiting portion (101) and an elastic portion (102), the snap-on buckle (10) is embedded in the docking groove (11) after being elastically deformed by the elastic portion (102), and the limiting portion (101) faces the end surface of the docking groove (11) and abuts against the mounting frame (2) to form a positioning.

4. The housing installation structure according to claim 1, characterized in that: The knob (7) comprises a fixed portion (71) and a manual portion (72); the fixed portion (71) is provided with a fixed channel (12); the fixed channel (12) comprises a slot (121) and a guide groove (122); the guide groove (122) is arranged along the circumferential direction to communicate with the slot (121) and penetrate to the outside of the fixed portion (71) toward an end away from the manual portion (72); the mounting frame (2) is provided with an embedded hole (25); a positioning protrusion (9) is fixed along the inner wall of the embedded hole (25); the positioning protrusion (9) is inserted into the guide groove (122) by rotation after sliding along the slot (121) to achieve position limiting; the guide groove (122) is provided with a guide surface (13); the inclination direction of the guide surface (13) makes the width of the limiting groove (17) expand toward the slot (121).

5. The housing mounting structure according to claim 1, characterized in that: The mounting seat (1) is provided with a positioning pin (14), the rear cover plate (4) is provided with a plug hole (15), and the positioning pin (14) is embedded in the plug hole (15) to achieve fixation.

6. The housing mounting structure according to claim 2, characterized in that: The side cover (42) is provided with a limiting plate (16), the limiting plate (16) extending toward the mounting cavity (3), the limiting plate (16) being provided with a limiting groove (17) at one end close to the mounting seat (1), the mounting seat (1) being fixed with a limiting strip (18) embedded in the limiting groove (17) for fixation, and the limiting groove (17) being flared toward the limiting strip (18).

7. The housing installation structure according to claim 2, characterized in that: A connecting protrusion (19) is provided on one side of the side cover (42) close to the mounting seat (1); a connecting hole (20) is provided on the mounting seat (1) corresponding to the connecting protrusion (19); and the connecting protrusion (19) is embedded in the connecting hole (20) for fixation.

8. The housing mounting structure according to claim 2, characterized in that: The top cover (41) is provided with an upper cover groove (21), the upper cover groove (21) being provided on the end surface of the top cover (41) facing the installation cavity (3), the upper cover groove (21) being used for accommodating the installation frame (2) and the top of the side cover (42), and the top cover (41) covers the installation cavity (3) to realize installation.

9. The housing mounting structure according to claim 8, characterized in that: The side cover (42) is further provided with an embedding groove (22), and the embedding groove (22) is arranged on the end surface of the snap-fit ​​buckle (5) which is away from each other. The top cover (41) is further provided with an embedding strip (23), and the embedding strip (23) extends toward the inside of the upper cover groove (21). The embedding strip (23) is embedded in the embedding groove (22) to limit the separation of the rear cover and the top cover (41).

10. The housing installation structure according to claim 2, characterized in that: The mounting seat (1) is provided with a cover opening groove (24), and the side cover (42) abuts against the cover opening groove (24) to provide a space for opening the cover.

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