Shell screw assembling and positioning tool

Abstract

The utility model provides a shell screw assembling and positioning tool. The shell screw assembling and positioning tool comprises a bottom support. The threaded holes are formed in the bottom support; one end of the guide column is in threaded connection with the threaded hole; the top pressing plate is provided with guide holes matched with the guide columns; the at least one positioning hole is formed in the top pressing plate and is matched with the convex part of the shell; the plurality of screw through holes are formed in the top pressing plate and are matched with the screw mounting holes of the shell one by one; when the shell is arranged on the bottom support and the top pressing plate is installed above the bottom support through matching of the guide holes and the corresponding guide columns, the shell is positioned through matching of the convex parts of the shell and the corresponding positioning holes, and the shell is in threaded connection with the tail ends, penetrating through the guide holes, of the guide columns through adjusting nuts, so that the shell is pre-pressed between the top pressing plate and the bottom support. The shell screw assembling and positioning tool is simple in structure and convenient to use, the shell can be horizontally pre-pressed by the top pressing plate, a screw through hole and a shell mounting hole are accurately aligned, and the side, where a screw is hit, of the shell is prevented from tilting due to elastic deformation.

Description

Technical Field

[0001] The utility model relates to the technical field of defibrillator manufacturing, in particular to a casing screw assembly and positioning tool. Background Art

[0002] Currently in the field of defibrillator (AED) product manufacturing, the upper and lower shells of its housing are usually connected and fixed by screws. When assembling the defibrillator product, this assembly step usually adopts manual screwing, which leads to low screw installation accuracy and easy deviation and damage to the defibrillator housing. In addition, since the plastic housing is easy to deform, when the screws are manually driven, the side of the housing that is tightened later is easy to be lifted up relative to the side that is tightened first, so that the deformation of the entire defibrillator housing cannot be released evenly, which is easy to cause fatigue of the defibrillator housing and affect the appearance of the product. Utility Model Content

[0003] The utility model provides a casing screw assembly positioning tool to solve the technical problems in the prior art that the manual assembly screws of a defibrillator casing have low installation precision and one side of the casing is easily lifted due to deformation.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] The utility model provides a casing screw assembly and positioning tool, comprising:

[0006] A bottom support; a plurality of threaded holes provided on the bottom support;

[0007] A guide post, one end of which is screwed into the threaded hole;

[0008] The top pressure plate is provided with a guide hole matching the guide column; at least one positioning hole is provided on the top pressure plate and matches the convex part of the shell; a plurality of screw through holes are provided on the top pressure plate and match each screw mounting hole of the shell one by one;

[0009] When the shell is placed on the bottom support and the top pressure plate is installed on the top of the bottom support through the guide holes and the corresponding guide columns, the shell is positioned by cooperating with the corresponding positioning holes through its protrusions, and is screwed with the ends of the guide columns passing through the guide holes through the adjusting nuts to pre-tighten the shell between the top pressure plate and the bottom support.

[0010] Furthermore, the housing screw assembly and positioning tool further includes:

[0011] At least one level is provided on the top pressure plate to measure the horizontality of the top pressure plate, so as to adjust the top pressure plate to a horizontal pre-compression shell by loosening or tightening the corresponding adjusting nut according to the measurement result.

[0012] Further, the guide column comprises:

[0013] Main body;

[0014] The limiting step is arranged at the end of the main body away from the bottom support, and the top pressure plate is installed above the bottom support through the guide hole and the corresponding limiting step of the guide column.

[0015] Preferably, the level is a linear level, comprising:

[0016] A first linear level and a second linear level, wherein the axial direction of the first linear level is perpendicular to that of the second linear level.

[0017] Furthermore, the housing screw assembly and positioning tool further includes:

[0018] The first mounting groove and the second mounting groove are perpendicularly arranged on the top surface of the top pressure plate away from the bottom support, and the first linear level and the second linear level are respectively installed in the first mounting groove and the second mounting groove.

[0019] Preferably, the bottom support is rectangular, the four threaded holes are respectively arranged at the four corners of the bottom support, the top pressure plate is rectangular matching the shape of the bottom support, and the four guide holes are respectively arranged at the four corners of the top pressure plate matching the threaded holes.

[0020] Preferably, the housing is a defibrillator housing.

[0021] Preferably, the protrusion is in the shape of a strip extending axially and horizontally, and the positioning hole is in the shape of a strip matching the shape of the protrusion.

[0022] Preferably, the housing comprises:

[0023] A bottom shell, and a top shell buckled on the top of the bottom shell;

[0024] A plurality of mounting top posts are arranged on the inner surface of the top shell facing the bottom shell, and the hollow parts of the mounting top posts form screw mounting holes penetrating the top shell;

[0025] The mounting bottom column is matched with the mounting top column and is arranged on the inner surface of the bottom shell facing the top shell, and the hollow part of the mounting bottom column forms a screw fixing hole matching the corresponding screw mounting hole;

[0026] When the shell is pre-compressed between the top pressure plate and the bottom support, the top shell and the bottom shell can be fixedly connected by connecting screws that pass through the corresponding screw through holes, screw mounting holes and screw fixing holes in sequence.

[0027] Preferably, the housing is a plastic housing.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] The shell screw assembly and positioning tool provided by the utility model has a simple structure and is easy to use. During the assembly operation, the operator only needs to screw the guide columns into the threaded holes at the four corners of the bottom support one by one, and then place the shell of the product to be assembled with screws on the bottom support. The shell is positioned by cooperating with the corresponding positioning holes through the convex parts. Then, the top pressure plate is installed above the bottom support through its guide holes and the corresponding guide columns and pressed on the top of the shell. The horizontality of the top pressure plate in the vertical and horizontal directions is measured by a pair of spirit levels. According to the measurement results, the corresponding adjusting nuts are loosened and measured repeatedly until it is observed that the top pressure plate is adjusted to the horizontal in the vertical and horizontal directions. At this time, the top pressure plate is adjusted to the horizontal to pre-compress the shell, and at the same time, the top pressure plate The various screw through holes and the various screw mounting holes of the shell are accurately aligned one by one; at this time, the operator can perform subsequent assembly operations, and accurately and vertically pass the connecting screws through the corresponding screw through holes, screw mounting holes and (the) screw fixing holes (of the bottom shell) in turn to fix the top shell and the bottom shell together. In this process, since the shell is clamped between the horizontal top pressure plate and the bottom support, the shell can be evenly pressed under the action of pre-tightening, preventing the side of the plastic shell that is screwed later from warping upward due to elastic deformation relative to the side that is screwed earlier, avoiding fatigue and easy damage of the shell due to the uneven release of the deformation of the product shell, and at the same time ensuring the symmetrical and smooth appearance of the product, which is particularly suitable for the shell screw assembly operation of defibrillator (AED) products. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solution proposed by the present invention, a detailed description is given below in combination with embodiments and drawings. It should be understood that the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, these drawings can be changed under the concept of the present invention.

[0031] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a housing screw assembly and positioning tool provided by the utility model;

[0032] Figure 2 A schematic diagram of the front structure of an embodiment of a housing screw assembly and positioning tool provided by the utility model;

[0033] Figure 3 A schematic side structural diagram of an embodiment of a housing screw assembly and positioning tool provided by the utility model;

[0034] Figure 4 A schematic diagram of the top view of the structure of an embodiment of the housing screw assembly and positioning tool provided by the utility model;

[0035] Figure 5 It is a schematic diagram of the exploded structure of an embodiment of the housing screw assembly and positioning tool provided by the utility model;

[0036] Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure of the top shell of the shell assembled by the shell screw assembly positioning tool.

[0037] Among them, the main marks of the drawings in the figure are as follows:

[0038] 1. Bottom support; 11. Threaded hole; 2. Guide column; 21. Connecting part; 211. Limiting step; 22. Mounting part; 221. Supporting step; 23. Main body; 3. Top pressure plate; 31. Guide hole; 32. Positioning hole; 33. Screw hole; 34. First mounting slot; 35. Second mounting slot; 4. Shell; 41. Top shell; 411. Protrusion; 412. Mounting top column; 413. Screw mounting hole; 42. Bottom shell; 5. Adjusting nut; 6. Level; 61. First linear level; 62. Second linear level. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the following is a summary of the technical problems, technical solutions and beneficial effects to be solved by the present invention. Figure 1-6 And embodiments, the utility model is further described in detail.

[0040] Please also read Figure 1-5 The housing screw assembly and positioning tool provided by the utility model includes:

[0041] A bottom support 1 can be placed on the bearing surface of a support (not shown in the figure); a plurality of threaded holes 11 (the inner holes of which are provided with internal threads, not shown in the figure) are provided on the bottom support 1; a guide column 2, both ends of which are provided with external threads (not shown in the figure), wherein one end of the guide column 2 is provided with an external thread matching the threaded hole 11 (the internal thread), and is threadedly connected and fixedly installed on the top surface of the bottom support 1 through the external thread provided at this end and the threaded hole 11; a top pressure plate 3, provided with a plurality of guide holes 31 matching each guide column 2 (threaded hole 11); at least one positioning hole 32 is provided on the top pressure plate 3, matching the shape and position of the protrusion 411 of the shell 4; a plurality of screw through holes 33 are provided on the top pressure plate 3, matching the shape and position of each screw mounting hole 413 of the shell 4; a plurality of adjusting nuts 5, the inner wall of whose screw hole is provided with an internal thread matching the external thread provided on the other end of the guide column 2 (not shown in the figure).

[0042] Please also read Figure 1-6During the assembly operation, the operator places the product shell 4 to be assembled with screws on the bottom support 1, and the top pressure plate 3 is installed on the top of the bottom support 1 through the guide hole 31 and the corresponding guide column 2 and pressed on the top of the shell 4. The shell 4 is positioned by cooperating with the corresponding positioning hole 32 through the convex portion 411. At the same time, the various screw through holes 33 of the top pressure plate 3 and the various screw mounting holes 413 of the shell 4 are accurately aligned one by one, and the internal thread of the adjusting nut 5 is threadedly connected with the external thread set at the end of each guide column 2 passing through the guide hole 31 (that is, the other end of the guide column 2) to press the top pressure plate 3 downward along each guide column 2 to the top of the shell 4 until the shell 4 is pre-tightened between the top pressure plate 3 and the bottom support 1.

[0043] At this time, the operator can perform subsequent assembly operations, accurately and vertically pass the connecting screws through the corresponding screw holes 33, screw mounting holes 413 and screw fixing holes in turn, and fix the top shell 41 and the bottom shell 42 together. In this process, since the shell 4 is clamped between the horizontal top pressure plate 3 and the bottom support 1, the shell 4 can be evenly pressed under the action of pre-tightening, preventing the side of the plastic shell 4 that is screwed later from curling up due to elastic deformation relative to the side of the plastic shell 4 that is screwed earlier, avoiding fatigue and fragility of the shell 4 due to the deformation of the product shell 4 that cannot be evenly released, while ensuring the product's appearance is symmetrical and smooth.

[0044] Please also read Figure 1-5 In this embodiment, the housing screw assembly and positioning tool further includes:

[0045] At least one spirit level 6 is provided on the top pressure plate 3, which is used to measure the horizontality of the top pressure plate 3, so that the top pressure plate 3 is pushed by each adjusting nut 5 and pressed downward along the guide column 2 toward the top end of the shell 4 until the top pressure plate 3 locks the shell 4 and pre-tightens it between the top pressure plate 3 and the bottom support 1. The operator can measure the horizontality of the top pressure plate 3 through the spirit level 6 during the process of rotating each adjusting nut 5, and tighten the corresponding adjusting nut 5 according to the measurement result, and repeatedly measure and correct, to ensure that the top pressure plate 3 is adjusted to horizontally pre-tighten the shell 4 while the top pressure plate 3 remains horizontal, so that the top end of the shell 4 is evenly in contact with the top pressure plate 3 and the force is balanced, so as to avoid the shell 4 from tilting when screwing, thereby achieving the pre-stressing of the shell 4 while improving the accuracy of subsequent screw assembly.

[0046] In this embodiment, the level 6 can be a mechanical level or an electronic level; it can be a linear level or a universal level. If a linear level is used, two levels 6 need to be set; if a universal level is used, only one level 6 needs to be set.

[0047] See also Figure 1 , 5 In this embodiment, the guide column 2 includes:

[0048] The main body 23; the limiting step 211 is arranged at the end of the main body 23 away from the bottom support 1, that is, the other end of the guide column 2 forms a connecting portion 21 with a diameter smaller than that of the main body 23 of the guide column 2, and the connection between the bottom end of the connecting portion 21 close to the bottom support 1 and the main body 23 of the guide column 2 forms an annular limiting step 211 surrounding the connecting portion 21; the top pressure plate 3 is installed above the bottom support 1 through the guide hole 31 and the corresponding annular limiting step 211 of the guide column 2, and at the same time, the bottom surface of the top pressure plate 3 is supported on the limiting step 211 close to the bottom support 1 At this time, the connecting part 21 passes through the guide hole and extends upward above the top pressure plate 3 (that is, the connecting part 21 is the end of the guide column 2 passing through the guide hole 31), and the external thread set at the other end of the guide column 2 is set on the outer wall of the connecting part 21 to cooperate with the internal thread of the adjusting nut 5; the distance between the contact surface of the limiting step 211 and the top pressure plate 3 (the bottom surface) (that is, the top surface of the limiting step 211) and the bottom support 1 matches the height of the main part (excluding the part of the top protrusion 411) when the shell 4 is placed on the bottom support 1.

[0049] See also Figure 1 , 5 In this embodiment, the housing screw assembly and positioning tool further includes:

[0050] The supporting step 221 is arranged at the end of the guide column 2 away from the top pressure plate 3 (i.e., close to the bottom support 1), that is, one end of the guide column 2 forms a mounting portion 22 whose diameter is smaller than the main body 23 of the guide column 2, and the mounting portion 22 is close to the top of the top seat plate and the connection with the main body 23 of the guide column 2 to form an annular supporting step 221 surrounding the mounting portion 22; the guide column 2 is installed on the bottom support 1 through the mounting portion 22 and the corresponding threaded hole 11, and is supported on the top surface of the bottom support 1 through the supporting step 221 away from the top surface of the bottom support 1 (i.e., close to the top pressure plate 3).

[0051] See also Figure 1 , 5 In this embodiment, the level 6 is a linear level, including:

[0052] The first linear level 61 and the second linear level 62, the axial direction of the first linear level 61 is perpendicular to the second linear level 62, and the first linear level 61 and the second linear level 62 are respectively used to measure the horizontality of the top pressure plate 3 in the mutually perpendicular X-axis and Y-axis directions.

[0053] Please also read Figure 1 , 4 -5. In this embodiment, the housing screw assembly and positioning tool further includes:

[0054] The first mounting groove 34 and the second mounting groove 35 are disposed perpendicularly to each other on the top surface of the top pressure plate 3 away from the bottom support 1 , and the first linear level 61 and the second linear level 62 are fixedly installed in the first mounting groove 34 and the second mounting groove 35 respectively.

[0055] Please also read Figure 1-5 In this embodiment, the bottom support 1 is in the shape of a rectangular plate, and the four threaded holes 11 are respectively arranged at the four corners of the bottom support 1, the top pressure plate 3 is in the shape of a rectangle matching the shape of the bottom support 1, and the four guide holes 31 are respectively arranged at the four corners of the top pressure plate 3 matching the threaded holes 11, and the number of guide columns 2 is also correspondingly four.

[0056] In other embodiments, the bottom support 1 and the top pressure plate 3 may also be circular or in other geometric shapes, and the number of threaded holes 11, guide columns 2 and guide holes 31 may also be three or more than five, distributed around the corresponding peripheries of the bottom support 1 and the top pressure plate 3 at intervals.

[0057] Please also read Figure 1-6 In this embodiment, the housing 4 is an automated defibrillator (AED) housing.

[0058] Please also read Figure 1-5 In this embodiment, the protrusion 411 is in the shape of a strip extending axially and horizontally, and the positioning hole 32 is in the shape of a strip matching the shape of the protrusion 411 .

[0059] In other embodiments, the protrusion 411 may be in a hemispherical shape, a regular quadrangular prism shape, or other irregular polygonal prism shapes, and the positioning hole 32 may be in a corresponding shape that matches the outer shape of the protrusion 411 .

[0060] Please also read Figure 1 , 5 -6. In this embodiment, the housing 4 includes:

[0061] A bottom shell 42, and a top shell 41 that is buckled on the top of the bottom shell 42 in an upward and downward manner; a plurality of top mounting posts 412, which are arranged on the inner surface of the top shell 41 facing the bottom shell 42, and the hollow portions of the top mounting posts 412 form the above-mentioned screw mounting holes 413 that penetrate the top shell 41; a bottom mounting post (not shown in the figure), which is arranged on the inner surface of the bottom shell 42 facing the top shell 41 to match the top mounting posts 412, and the hollow portions of the bottom mounting posts form screw fixing holes (not shown in the figure) that match the corresponding screw mounting holes 413;

[0062] When the shell 4 is pre-tightened between the top pressure plate 3 and the bottom support 1, the top shell 41 and the bottom shell 42 can be fixedly connected by connecting screws that pass through the corresponding screw through holes 33, screw mounting holes 413 and screw fixing holes in sequence.

[0063] In this embodiment, the housing 4 is a plastic housing 4 .

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the utility model.

Claims

1. A casing screw assembly and positioning tool, characterized in that: include: A bottom support; a plurality of threaded holes provided on the bottom support; A guide column, one end of which is screwed into the threaded hole; The top pressure plate is provided with a guide hole matching the guide column; at least one positioning hole is provided on the top pressure plate and matches the convex portion of the shell; a plurality of screw through holes are provided on the top pressure plate and match the respective screw mounting holes of the shell one by one; When the shell is placed on the bottom support and the top pressure plate is installed above the bottom support through the guide holes and the corresponding guide columns, the shell is positioned by cooperating with the corresponding positioning holes through its protrusions, and is screwed with the ends of the guide columns passing through the guide holes through adjusting nuts to pre-tighten the shell between the top pressure plate and the bottom support.

2. The housing screw assembly and positioning tool as claimed in claim 1, characterized in that: Also includes: At least one level is provided on the top pressure plate, and is used to measure the horizontality of the top pressure plate, so as to adjust the top pressure plate to a horizontal level by loosening or tightening the corresponding adjusting nut according to the measurement result to pre-tighten the shell.

3. The housing screw assembly and positioning tool as claimed in claim 1, characterized in that: The guide column comprises: Main body; The limiting step is arranged at the end of the main body away from the bottom support, and the top pressure plate is installed above the bottom support through the guide hole and the corresponding limiting step of the guide column.

4. The housing screw assembly and positioning tool as claimed in claim 2, characterized in that: The level meter adopts a linear level meter, including: A first linear level and a second linear level, wherein an axial direction of the first linear level is perpendicular to that of the second linear level.

5. The housing screw assembly and positioning tool as claimed in claim 4, characterized in that: Also includes: The first mounting groove and the second mounting groove are arranged perpendicularly to each other on the top surface of the top pressure plate away from the bottom support, and the first linear level and the second linear level are installed in the first mounting groove and the second mounting groove respectively.

6. The housing screw assembly and positioning tool as described in any one of claims 1 to 5, characterized in that: The bottom support is rectangular, the four threaded holes are respectively arranged at the four corners of the bottom support, the top pressure plate is rectangular matching the shape of the bottom support, and the four guide holes are respectively arranged at the four corners of the top pressure plate matching the threaded holes.

7. The housing screw assembly and positioning tool according to any one of claims 1 to 5, characterized in that: The housing is a defibrillator housing.

8. The housing screw assembly and positioning tool as claimed in claim 7, characterized in that: The convex part is in the shape of a strip extending axially and horizontally, and the positioning hole is in the shape of a strip matching the shape of the convex part.

9. The housing screw assembly and positioning tool as claimed in claim 7, characterized in that: The housing comprises: A bottom shell, and a top shell buckled on the top of the bottom shell; A plurality of mounting top posts are arranged on the inner surface of the top shell facing the bottom shell, and the hollow parts of the mounting top posts form the screw mounting holes penetrating the top shell; A mounting bottom column is arranged on the inner surface of the bottom shell facing the top shell to match the mounting top column, and a screw fixing hole matching the corresponding screw mounting hole is formed in the hollow portion of the mounting bottom column; When the shell is pre-compressed between the top pressure plate and the bottom support, the top shell and the bottom shell can be fixedly connected by connecting screws that pass through the corresponding screw through holes, screw mounting holes and screw fixing holes in sequence.

10. The housing screw assembly and positioning tool as claimed in claim 7, characterized in that: The shell is a plastic shell.

Images