Assembly device for glass bulb type sprinkler head

Abstract

The present invention relates to an assembly device for a glass bulb type sprinkler head in a provisional assembly state, wherein the distance between a seat washer, which is provided at the bottom of the frame of a body and is spirally coupled to a boss penetrating a deflector, and a bulb cap that opens and closes the water outlet of the body is large, so that a glass bulb is loosely mounted between the seat washer and the bulb cap. In particular, the device comprises: a support wall installed on the upper surface of a base; a lifting part installed to be movable up and down along the support wall; and a mounting part on which the glass bulb type sprinkler head in the provisional assembly state is loaded and which raises and lowers the loaded sprinkler head. It is configured to include a fastening part that moves along the lifting part and, when descending, rotates the seat washer of the sprinkler head raised from the mounting part in the forward direction to narrow the gap between the seat washer and the bulb cap, thereby enabling the seat washer to be rotated for the same amount of time with the same rotational force at the same position, thus providing the effect of obtaining a sprinkler head with uniform quality.

Description

Technology Field

[0001] The present invention relates to an assembly device for a glass bulb type sprinkler head, and more specifically, to an assembly device for a glass bulb type sprinkler head for securely assembling a glass bulb type sprinkler head in a provisional assembly state in which a seat washer is loosely spirally coupled to a boss provided at the bottom of a body frame and a glass bulb is loosely mounted between the seat washer and the bulb cap. Background Technology

[0003] Generally, sprinkler heads are installed exposed on the ceiling of a building and connected to piping so that fire extinguishing fluid supplied in the event of a fire is automatically sprayed into the fire area, thereby suppressing the fire in its early stages.

[0004] Various types of such sprinkler heads are known, and among them, sprinkler heads that use a glass bulb and a bulb cap as the heat-sensing element are also widely known.

[0005] A glass bulb type sprinkler head is generally configured to include a body having a frame and a water outlet formed for discharging fire extinguishing liquid; a thermal sensing unit including a glass bulb and a bulb cap installed between the body and the frame to block the water outlet and then separated to open the water outlet upon the occurrence of a fire; a seat washer that supports the glass bulb together with the bulb cap; and a deflector spaced apart from the lower side of the body to spray the fire extinguishing liquid discharged through the open water outlet in a radial manner.

[0006] When manufacturing a glass bulb type sprinkler head with the above structure, conventionally, a method was adopted in which a worker manually installs the glass bulb and bulb cap within the frame of the body and then rotates the seat washer so that the seat washer is tightened toward the bulb cap, thereby firmly supporting the upper and lower ends of the glass bulb by the bulb cap and the seat washer.

[0007] Since the assembly was done manually, the degree to which the seat washers were tightened varied depending on the worker's strength, physical condition, and skill level. Consequently, it was difficult to expect sprinkler heads of consistent quality, as some products had their seat washers tightened too strongly, causing frame deformation, while others had them tightened too weakly, resulting in the glass bulbs coming loose.

[0008] Furthermore, when seat washers are tightened manually, minute displacements occurring in the body frame cannot be measured. Therefore, even if a sprinkler head appears to be of high quality with no frame deformation and a firmly fixed glass bulb, it may actually be a defective product that fails to perform properly in the event of a fire due to frame deformation. Prior art literature

[0010] (Patent Document 0001) JP 2015-205223 A The problem to be solved

[0011] The present invention was devised to solve the problems of the aforementioned prior art, and aims to provide an assembly device for a glass bulb type sprinkler head that can obtain a sprinkler head of uniform quality by automatically rotating and assembling a seat washer, and can accurately and quickly check for defects in the completed sprinkler head by checking the displacement amount of the sprinkler head frame in real time during assembly. means of solving the problem

[0013] An assembly device for a glass bulb type sprinkler head according to the present invention for solving the above-mentioned problem is a device for completing the assembly of a glass bulb type sprinkler head in a provisional assembly state in which a glass bulb is loosely mounted between a seat washer and a bulb cap that opens and closes the water outlet of the body, such that the distance between the seat washer and the bulb cap is large, provided at the bottom of the frame of the body and spirally coupled to a boss penetrating a deflector; the device comprises: a support wall installed on the upper surface of a base; a lifting part installed to be movable up and down along the support wall; a mounting part in which the glass bulb type sprinkler head in the provisional assembly state is loaded and the loaded sprinkler head is raised and lowered; and a fastening part that moves along the lifting part and, when lowered, rotates the seat washer of the sprinkler head raised from the mounting part in the forward direction to narrow the distance between the seat washer and the bulb cap.

[0014] Herein, the present invention includes a control unit electrically connected to and controlling the lifting unit, mounting unit, and fastening unit; the lifting unit is equipped with a position confirmation sensor electrically connected to the control unit and detecting the correct position of the fastening unit, so that when the fastening unit is in the correct position, the control unit rotates the seat washer in the correct position to reduce the distance between the seat washer and the bulb cap.

[0015] Meanwhile, the lifting unit comprises: a drive motor installed on the support wall; a screw shaft that rotates by receiving rotational force from the drive motor; a lifting block that moves up and down along the screw shaft; a guide installed on the support wall; and a slider on which the fastening part is installed, which is connected to the lifting block and connected to the guide to move up and down along the guide, and on which the position confirmation sensor is installed.

[0016] In addition, the fastening portion comprises: a rotary motor installed on the slider; a fastening bit, the end of which is inserted into a fastening groove formed on the upper surface of the seat washer and which receives rotational force from the rotary motor to rotate the seat washer in forward and reverse directions; and a pressure pad provided on the lower side of the fastening bit to press the deflector of the sprinkler head when the fastening bit rotates the seat washer.

[0017] Additionally, the fastening bit comprises an upper bit configured to move up and down while rotating by the rotational force of the rotary motor, and a lower bit configured on the lower side of the upper bit with a smaller diameter than the upper bit, which rotates and descends together with the upper bit when it rotates and descends, with its lower end inserted into the fastening groove of the seat washer; the position confirmation sensor detects the upper bit with a larger diameter when the lower end of the lower bit is inserted into the fastening groove, and the control unit identifies this state as the position of the fastening bit.

[0018] Here, the control unit rotates the fastening bit in the reverse direction immediately after the fastening bit is in the correct position, thereby restoring the fastening bit to the angle immediately before it is inserted into the fastening groove.

[0019] In addition, the control unit has a specific torque value set for the torque applied to the fastening bit, and the fastening bit stops rotating when it reaches the set torque value.

[0020] Meanwhile, the present invention further comprises a displacement sensing unit electrically connected to the control unit to measure the displacement of the frame of the body according to the forward rotation of the seat washer, and the displacement of the frame is displayed through the control unit.

[0021] In addition, the displacement sensing unit comprises: a load sensor installed on the slider; an upper panel disposed on the upper part of an auxiliary panel provided on the slider, having a dog on its upper surface that contacts the load sensor to generate contact pressure; a lower panel disposed on the lower part of the auxiliary panel, on which the pressure pad is mounted; a vertical bar installed between the upper panel and the lower panel; and a spring installed between the auxiliary panel and the lower panel while surrounding the vertical bar.

[0022] Here, a specific pressure value regarding the contact pressure generated by the contact between the load sensor and the dog is set in the control unit, and the slider descends until the contact pressure between the load sensor and the dog reaches the set pressure value of the control unit.

[0023] In addition, the mounting portion comprises: a mounting base installed on the upper surface of the base and having a through hole formed on one side; a lateral support member provided on the upper surface of the mounting base to support the glass bulb of the sprinkler head from the side; and a cylinder provided on the lower side of the mounting base, wherein a lower pin installed on a rod moves up and down within the through hole to raise and lower the sprinkler head. Effects of the invention

[0025] The assembly device for a glass bulb-type sprinkler head of the present invention, configured as described above, assembles the sprinkler head in a provisional assembly state using an automatic mechanical operation rather than manual labor by a worker. Since this allows the seat washer to be rotated at the same location with the same rotational force for the same amount of time, it has the advantage of obtaining a sprinkler head of uniform quality.

[0026] In addition, there is an advantage in that the amount of deformation (i.e., displacement) of the sprinkler head frame can be clearly and visually checked through the display while assembling the sprinkler head by rotating the seat washer, allowing for the rapid identification of defects in the assembled sprinkler head. Brief explanation of the drawing

[0028] FIGS. 1 to 4 are drawings showing an assembly device for a glass bulb type sprinkler head according to the present invention. FIG. 5 is a figure showing a glass bulb type sprinkler head in a provisional assembly state mounted on an assembly device for a glass bulb type sprinkler head according to the present invention and raised. FIGS. 6 to 8 show the lowering of the lifting part, fastening part, and displacement sensing unit, etc. of the assembly device of a glass bulb type sprinkler head according to the present invention. FIG. 9 is a figure showing the fastening bit of the assembly device for a glass bulb-type sprinkler head according to the present invention inserted into the fastening groove of a seat washer. FIG. 10 is a block diagram showing the relationship between important components centered on the control unit of the assembly device of a glass bulb type sprinkler head according to the present invention. Specific details for implementing the invention

[0029] Hereinafter, an embodiment of the assembly device for a glass bulb type sprinkler head according to the present invention will be described in detail with reference to the attached drawings.

[0030] FIGS. 1 to 4 are drawings showing an assembly device for a glass bulb type sprinkler head according to the present invention.

[0031] FIG. 5 is a diagram showing a glass bulb type sprinkler head in a provisional assembly state mounted on an assembly device for a glass bulb type sprinkler head according to the present invention and raised; FIG. 6 to 8 are diagrams showing the lifting part, fastening part, and displacement sensing unit of the assembly device for a glass bulb type sprinkler head according to the present invention descending; and FIG. 9 is a diagram showing the fastening bit of the assembly device for a glass bulb type sprinkler head according to the present invention inserted into the fastening groove of a seat washer.

[0032] In addition, FIG. 10 is a block diagram showing the relationship between important components centered on the control unit of the assembly device of a glass bulb type sprinkler head according to the present invention.

[0034] The assembly device for a glass bulb type sprinkler head according to the present invention is a device for firmly completing the assembly of a glass bulb type sprinkler head (S) in a provisional assembly state in which a glass bulb (6) is loosely mounted between the seat washer (4) and the bulb cap (5) by having a large spacing between the seat washer (4) and the bulb cap (5) that opens and closes the water outlet of the body (1) and the seat washer (4) which is spirally coupled to a boss (3) that penetrates a deflector (2) and is provided at the bottom of the frame (1a) of the body (1).

[0035] The present invention comprises a base (10), a support wall (20) installed on the upper surface of the base (10), a lifting unit (30) installed to be movable up and down along the support wall (20), a mounting unit (40) on which a glass bulb-type sprinkler head (S) in a provisional assembly state is loaded, a fastening unit (50) for securely assembling the glass bulb-type sprinkler head (S) in a provisional assembly state mounted on the mounting unit (40), a control unit (60) electrically connected to the lifting unit (30), the mounting unit (40), and the fastening unit to control them, a position confirmation sensor (70) electrically connected to the control unit (60) to detect whether the fastening unit (50) is in the correct position, and a displacement sensing unit (80) electrically connected to the control unit (60) to measure the displacement amount of the frame (1a) of the body (1).

[0037] The above support wall (20) is installed so as to stand upright on the upper surface of the base (10).

[0038] The above lifting unit (30) moves up and down along the base (10) to move the fastening unit (50), the position confirmation sensor (70), and the displacement amount sensing unit (80), etc., in the up and down direction.

[0039] The lifting unit (30) comprises a drive motor (31), a screw shaft (32) that rotates by receiving rotational force from the drive motor (31), a lifting block (33) that moves up and down along the screw shaft (32), a guide (34) installed on the support wall (20), and a slider (35) connected to the lifting block (33) that moves up and down.

[0040] The above drive motor (31) is installed on one side of the support wall (20) to generate rotational force.

[0041] The screw shaft (32) is installed vertically on the opposite side of one side of the support wall (20) where the drive motor (31) is installed, and is connected to the motor shaft of the drive motor (31) through a power transmission member such as a pulley and a belt and rotates.

[0042] The above lifting block (33) is penetrated by the screw shaft (32) and moves in a straight line in the up and down direction when the screw shaft (32) rotates.

[0043] The above guide (34) is installed on each side of the screw shaft (32).

[0044] The above slider (35) is connected to the guide (34) and the lifting block (33) to move in the up and down direction. At this time, guide blocks (35a) that move up and down along the guide (34) are provided on both sides, so that the slider (35) eventually moves in the up and down direction along the guide (34). A fastening part (50) and a position confirmation sensor (70) are installed on this slider (35).

[0046] The above mounting part (40) is installed on the upper surface of the base (10) and raises and lowers the sprinkler head (S) loaded in a provisional assembly state.

[0047] This mounting part (40) is configured to include a mounting base (41) installed on the upper surface of the base (10), a lateral support member (42) provided on the upper surface of the mounting base (41), and a cylinder (43) provided on the lower side of the mounting base (41).

[0048] A sprinkler head (S) in a provisional assembly state is loaded on the upper surface of the above-mentioned mounting base (41), and a through hole (41a) is formed on one side. More specifically, the sprinkler head (S) in a provisional assembly state is mounted on the upper side of the through hole (41a).

[0049] The above-mentioned lateral support member (42) has a groove formed facing inward, and the glass bulb (6) of the sprinkler head is inserted into this groove to support the glass bulb (6) from the side.

[0050] The cylinder (43) has a lower pin (43a) connected to the end of the rod, and this lower pin (43a) moves up and down within the through hole (41a) to raise the sprinkler head (S). To elaborate, as the lower pin (43a) rises, it is inserted into the body (1) of the sprinkler head (S), and continues to rise in this state until the bulb cap (5) of the sprinkler head (S) comes into close contact with the bottom surface of the lateral support (42). Thus, the sprinkler head (S) in a pre-assembled state is firmly fixed in place.

[0051] Through this configuration, the sprinkler head (S) does not move during the assembly process, so that when the displacement amount of the frame (1a) of the body (1) is measured and displayed by the displacement amount sensing unit (80) and the control unit (60), a more accurate value can be measured and displayed.

[0053] The above-mentioned connecting part (50) moves along the lifting part (30), and when lowering, it rotates the seat washer (4) of the sprinkler head (S) raised from the mounting part (40) in the forward direction to narrow the distance between the seat washer (4) and the bulb cap (5).

[0054] To explain in more detail, the fastening part (50) is configured to include a rotary motor (51), a fastening bit (52) that rotates by receiving rotational force from the rotary motor (51), and a pressure pad (53) provided on the lower side of the fastening bit (52).

[0055] The rotary motor (51) is installed on a slider (35) that moves up and down and moves up and down together with the slider (35).

[0056] The end of the fastening bit (52) is inserted into the fastening groove (4a) formed on the upper surface of the seat washer (4), and the seat washer (4) is rotated in forward and reverse directions by the rotational force provided by the rotation motor (51).

[0057] These connecting bits (52) consist of an upper bit (52a) and a lower bit (52b).

[0058] The upper bit (52a) is connected to the motor shaft of the rotary motor (51) and is provided on the lower side of the rotary motor (51) so that it can move up and down while rotating by the rotational force of the rotary motor (51).

[0059] The lower bit (52b) is provided on the lower side of the upper bit (52a) and has a smaller diameter than the upper bit (52a). That is, the outer diameter of the upper bit (52a) is formed to be larger than the outer diameter of the lower bit (52b), and when the upper bit (52a) rotates and descends, the lower bit (52b) also rotates and descends together so that its lower end is inserted into the fastening groove (4a) of the seat washer (4).

[0061] Here, the process of the fastening bit (52) finding and inserting into the fastening groove (4a) of the sheet washer (4) is briefly explained as follows.

[0062] Assuming that the forward rotation of the seat washer (4) is such that the seat washer (4) is firmly tightened, and assuming that the fastening groove (4a) formed in the seat washer (4) is a straight groove and the bottom shape of the lower bit (52b) is a straight shape, when the slider (35) descends by the signal of the control unit (60) and the fastening bit (52) connected to the rotation motor (51) descends to the upper surface of the seat washer (4), the fastening bit (52) rotates in the forward direction above the fastening groove (4a) by the rotation motor (51), and when the moment comes when the fastening groove (4a) and the fastening bit (52) coincide, the fastening bit (52) descends instantaneously downward, and the bottom of the lower bit (52b) is inserted into the fastening groove (4a).

[0063] At this time, the position confirmation sensor (70), which will be described later, cannot detect the lower bit (52b) with a small diameter, but detects the upper bit (52a) with a large diameter that has descended due to insertion into the fastening groove (4a) of the lower bit (52b). The control unit (60), which receives this detection signal from the position confirmation sensor (70), identifies this state as the positional state of the fastening bit (52) and prepares to firmly tighten the seat washer (4) with the fastening bit (52).

[0064] Meanwhile, after the fastening bit (52) is in the correct position, that is, immediately after the control unit (60) determines that the fastening bit (52) is in the correct position, the control unit (60) rotates the fastening bit (52) in the reverse direction by the angle at which the fastening bit (52) was rotated in the forward direction to find the fastening groove (4a) of the seat washer (4), thereby restoring the fastening bit (52) to the angle immediately before it is inserted into the fastening groove (4a). By doing so, the torque applied to the fastening bit (52) is initialized to a zero value, thereby allowing the torque value provided during the rotation of the seat washer (4) to be accurately known, and the amount of displacement of the frame (1a) of the body (1) resulting from this can be accurately measured.

[0066] The above pressure pad (53) is made of an elastic material such as rubber and is provided on the lower side of the fastening bit (52), and presses the deflector (2) of the sprinkler head (S) from the upper side when the fastening bit (52) rotates the seat washer (4). Therefore, even if the seat washer (4) rotates due to the fastening bit (52), the sprinkler head (S), including the deflector (2), receives stronger resistance so that it does not rotate.

[0068] The above control unit (60) is electrically connected to the lifting unit (30), mounting unit (40), fastening unit (50), etc., to control operation, and is electrically connected to the position confirmation sensor (70) and displacement amount sensing unit (80) to receive detection signals and measurement values ​​from them.

[0069] In addition, the control unit (60) is set with a specific torque value regarding the torque applied to the fastening bit (52) and a specific pressure value regarding the contact pressure generated by the contact between the load sensor (81) of the displacement amount sensing unit (80) and the dog (82a), which will be described later.

[0070] That is, when the torque value provided to the fastening bit (52) by the rotary motor (51), which has a built-in torque sensor (not shown) electrically connected to the control unit (60) to rotate the fastening bit (52), reaches a set torque value set in the control unit (60), the control unit (60) stops the operation of the rotary motor (51) so that the fastening bit (52) does not rotate any further. This is because if it rotates beyond that point, the seat washer (4) will rotate excessively, which could deform the frame (1a) of the body (1) beyond the set range.

[0071] And, the slider (35) stops descending when the contact pressure generated by the contact between the load sensor (81) and the dog (82a) reaches the set pressure value set in the control unit (60). That is, the slider (35) descends only until the contact pressure value between the load sensor (81) and the dog (82a) reaches the set pressure value of the control unit (60). This is because if it descends any further, the sprinkler head (S) in a pre-assembled state may be damaged by the fastening bit (52) and the pressure pad (53) of the fastening unit (50).

[0073] The above-mentioned position confirmation sensor (70) checks whether the fastening bit (52) is in a proper position to tighten the seat washer (4). When the position confirmation sensor (70) detects the upper bit (52a) of the fastening bit (52) as described above, the control unit (60) that receives this detection signal determines that the fastening part (50) is in a proper position, and accordingly, gives an operation signal to the rotary motor (51) to rotate the fastening bit (52) in a forward direction, thereby rotating the seat washer (4) in a forward direction.

[0074] When the seat washer (4) is rotated in the forward direction like this, the distance between the seat washer (4) and the bulb cap (5) is reduced, and accordingly, the glass bulb (6), which was loosely positioned, is firmly positioned between the seat washer (4) and the bulb cap (5) with stronger pressure.

[0076] The above displacement sensing unit (80) measures the displacement of the frame (1a) of the body (1) according to the forward rotation of the seat washer (4), and the measured displacement of the frame (1a) is displayed through the control unit (60).

[0077] To explain in more detail, the displacement sensing unit (80) is composed of a load sensor (81), an upper panel (82) equipped with a dog (82a) that contacts the load sensor (81) to generate contact pressure, a lower panel (83) positioned below the auxiliary panel (35b), a vertical bar (84) installed between the upper panel (82) and the lower panel (83), and a spring (85) surrounding the vertical bar (84).

[0078] The load sensor (81) is installed on the slider (35). This load sensor (81) is continuously subjected to a downward pushing force by an elastic means such as a spring, so that after the slider (35) descends and comes into contact with the dog (82a), the contact state is not released until the assembly of the seat washer (4) is completed and the slider (35) rises again. That is, the contact state between the load sensor (81) and the dog (82a) is continuously maintained until the slider (35) goes down and then rises again to return to its original state, so that the contact pressure value measured by the load sensor (81) is continuously transmitted to the control unit (60).

[0079] The upper panel (82) is positioned on top of the auxiliary panel (35b) provided on the slider (35), and has a dog (82a) on its upper surface. This upper panel (82) is positioned on top of the auxiliary panel (35b) but is not connected to the auxiliary panel (35b).

[0080] As previously described, the above dog (82a) comes into contact with the load sensor (81) to generate contact pressure, and the load sensor (81) measures this contact pressure value and transmits it to the control unit (60). As explained above, when the contact pressure value measured by the load sensor (81) reaches the pressure value set in the control unit (60), the lowering of the slider (35) on which the load sensor (81) is installed stops.

[0081] A pressure pad (53) is mounted on the lower panel (83). The pressure pad (53) surrounds the lower bit (52b), with the upper portion having a smaller diameter penetrating the lower panel (83), and the lower portion having a larger diameter pressing the deflector (2) of the sprinkler head (S) from above below the lower panel (83).

[0082] A pair of the above vertical bars (84) are provided, with the upper end fixed to the upper panel (82) and the lower end fixed to the lower panel (83).

[0083] The above spring (85) is installed between the auxiliary panel (35b) and the lower panel (83), with its upper end in close contact with the lower surface of the auxiliary panel (35b) and its lower end in close contact with the upper surface of the lower panel (83).

[0085] The operation process of the assembly device for the glass bulb type sprinkler head configured as described above is briefly explained as follows.

[0086] When a worker places a pre-assembled sprinkler head on a mounting base (41) and presses the operation button, the control unit (60) operates the cylinder (43) to raise the lower pin (43a) until the sprinkler head (S) is in close contact with the bottom surface of the lateral support (42).

[0087] Subsequently, the control unit (60) operates the drive motor (31) to lower the slider (35), and when the contact pressure generated by the contact between the load sensor (81) and the dog (82a) reaches a set pressure value already set in the control unit (60), the slider (35) stops lowering further.

[0088] When the slider (35) stops descending in this way, the pressure pad (53) installed on the lower panel (83) pressurizes the deflector (2) of the sprinkler head (S), and the load sensor (81) and the dog (82a) maintain a state of close contact.

[0089] Meanwhile, when the slider (35) descends, the auxiliary panel (35b) fixed to the slider (35) also descends, and the auxiliary panel (35b) compresses the spring (85), causing the gap between the upper panel (82) and the auxiliary panel (35b) to widen.

[0090] When the slider (35) stops descending, the control unit (60) activates the rotary motor (51) to rotate the fastening bit (52) forward and searches the fastening groove (4a) of the seat washer (4). When the fastening bit (52) and the fastening groove (4a) match during this search process, the fastening bit (52) descends and the lower part of the lower bit (52b) is inserted into the fastening groove (4a) of the seat washer (4).

[0091] When the fastening bit (52) descends in this manner and the lower end of the lower bit (52b) is inserted into the fastening groove (4a), the position confirmation sensor (70) detects the upper bit (52a) and transmits this signal to the control unit (60).

[0092] The control unit (60), which receives the upper bit (52a) detection signal from the position confirmation sensor (70), identifies the state as the fastening bit (52) being in the correct position, reverses the position of the fastening bit (52) by the angle it rotated during the search process of the fastening groove (4a) to position the fastening bit (52) to its original angle point, and initializes the torque value applied to the fastening bit to 0 (Zero).

[0093] After initialization, the fastening bit (52) is rotated in the forward direction to rotate the seat washer (4), but when the torque value applied to the fastening bit (52) reaches the set torque value set in the control unit (60), the rotation stops.

[0094] Here, when the seat washer (4) is tightened to the boss (3) of the sprinkler head (S) by the rotation of the fastening bit (52), the seat washer (4) gradually moves downward, and the seat washer (4) and the bulb cap (5) firmly hold the upper and lower ends of the loose glass bulb (6), thereby completing the assembly of the loose sprinkler head (S).

[0095] Meanwhile, as the seat washer (4) gradually moves downward due to the tightening rotation, deformation occurs in the frame (1a) of the body (1), causing the lower panel (83) and the upper panel (82) to descend. As the upper panel (82) descends, the dog (82a) descends, and the contact pressure between the dog (82a) and the load sensor (81), which maintains contact, gradually decreases.

[0096] The contact pressure changing in this way is transmitted to the control unit (60) by the load sensor (81), and the control unit (60) calculates the displacement amount of the frame (1a) using the transmitted contact pressure and displays it frequently through the control unit (60). If the displacement amount of the frame (1a) is within the range of the displacement amount value set in the control unit (60), the control unit (60) determines that the assembled sprinkler head (S) is normal.

[0097] Thus, the present invention allows for the displacement of the frame (1a) to be measured at any time during the fastening of the seat washer (4), thereby enabling the rapid identification of whether the assembled sprinkler head (S) is defective.

[0098] If the assembly of the sprinkler head (S) in a pre-assembled state is completed through the above process, the slider (35) rises again to return to its original position, and other components are also returned to their original positions for the next assembly operation. Explanation of the symbols

[0100] 10: Base 20: Support wall 30: Lifting unit 31: Drive motor 32: Screw shaft 33: Lifting block 34: Guide 35: Slider 35a: Guide block 35b: Auxiliary panel 40: Mounting part 41: Seating bracket 41a: Through hole 42: Lateral support 43: Cylinder 43a: Lower pin 50: Connecting part 51: Rotary motor 52: Engagement bit 52a: Upper bit 52b: Lower bit 53: Pressure pad 60: Control unit 70: Correct position verification sensor 80: Displacement sensing unit 81: Load sensor 82: Top panel 82a: Dog 83: Bottom panel 84: Vertical bar 85: Spring S: Sprinkler Head 1: Body 1a: Frame 2: Deflector 3: Boss 4: Seat washer 4a: Attachment groove 5: Bulb cap 6: Glass bulb

Claims

Claim 1 A device for completing the assembly of a glass bulb type sprinkler head (S) in a provisional assembly state, wherein the distance between the seat washer (4), which is spirally coupled to a boss (3) that penetrates a deflector (2) and is provided at the bottom of the frame (1a) of the body (1), and the bulb cap (5) which opens and closes the water outlet of the body (1), is large, and the glass bulb (6) is loosely mounted between the seat washer (4) and the bulb cap (5); the device comprises: a support wall (20) installed on the upper surface of a base (10); a lifting part (30) installed to be movable up and down along the support wall (20); and a mounting part (40) on which the glass bulb type sprinkler head (S) in the provisional assembly state is loaded and which raises and lowers the loaded sprinkler head (S). An assembly device for a glass bulb type sprinkler head, comprising: a fastening part (50) that moves along the lifting part (30) and, when lowered, rotates the seat washer (4) of the sprinkler head (S) raised from the mounting part (40) in the forward direction to narrow the distance between the seat washer (4) and the bulb cap (5); wherein the mounting part (40) is installed on the upper surface of the base (10) and comprises a mounting base (41) having a through hole (41a) formed on one side; a lateral support member (42) provided on the upper surface of the mounting base (41) to support the glass bulb (6) of the sprinkler head (S) from the side; and a cylinder (43) provided on the lower side of the mounting base (41), wherein a lower pin (43a) installed on a rod rises and falls within the through hole (41a) to raise and lower the sprinkler head (S). Claim 2 An assembly device for a glass bulb type sprinkler head according to claim 1, comprising a control unit (60) that is electrically connected to and controls the lifting unit (30), the mounting unit (40), and the fastening unit (50), wherein the lifting unit (30) is equipped with a position confirmation sensor (70) that is electrically connected to the control unit (60) and detects the position of the fastening unit (50), and wherein the control unit (60) rotates the seat washer (4) in the forward direction when the fastening unit (50) is in the correct position to reduce the distance between the seat washer (4) and the bulb cap (5). Claim 3 An assembly device for a glass bulb type sprinkler head according to claim 2, wherein the lifting member (30) comprises: a driving motor (31) installed on the support wall (20); a screw shaft (32) that rotates by receiving rotational force from the driving motor (31); a lifting block (33) that moves up and down along the screw shaft (32); a guide (34) installed on the support wall (20); and a slider (35) on which the fastening member (50) is installed, which is connected to the lifting block (33) and connected to the guide (34) to move up and down along the guide (34), and on which the position confirmation sensor (70) is installed. Claim 4 An assembly device for a glass bulb type sprinkler head according to claim 3, wherein the fastening part (50) comprises: a rotary motor (51) installed on the slider (35); a fastening bit (52) having its end inserted into a fastening groove (4a) formed on the upper surface of the seat washer (4) and receiving rotational force from the rotary motor (51) to rotate the seat washer (4) in forward and reverse directions; and a pressure pad (53) provided on the lower side of the fastening bit (52) to press the deflector (2) of the sprinkler head (S) when the fastening bit (52) rotates the seat washer (4). Claim 5 An assembly device for a glass bulb type sprinkler head according to claim 4, wherein the fastening bit (52) comprises an upper bit (52a) that is capable of moving up and down while rotating by the rotational force of the rotary motor (51), and a lower bit (52b) that is provided on the lower side of the upper bit (52a) with a diameter smaller than that of the upper bit (52a) and rotates and descends together with the upper bit (52a) when the upper bit (52a) rotates and descends, with the lower end inserted into the fastening groove (4a) of the seat washer (4); wherein the correct position confirmation sensor (70) detects the upper bit (52a) with a larger diameter when the lower end of the lower bit (52b) is inserted into the fastening groove (4a), and the control unit (60) identifies this state as the correct position state of the fastening bit (52). Claim 6 An assembly device for a glass bulb type sprinkler head according to claim 5, wherein the control unit (60) rotates the fastening bit (52) in the reverse direction immediately after the fastening bit (52) is in the correct position, thereby restoring the fastening bit (52) to the angle immediately before it is inserted into the fastening groove (4a). Claim 7 An assembly device for a glass bulb type sprinkler head according to claim 4, wherein the control unit (60) has a specific torque value set for the torque applied to the fastening bit (52), and the fastening bit (52) stops rotating when it reaches the set torque value. Claim 8 An assembly device for a glass bulb type sprinkler head according to claim 4, further comprising a displacement sensing unit (80) electrically connected to the control unit (60) to measure the displacement of the frame (1a) of the body (1) according to the forward rotation of the seat washer (4), wherein the displacement of the frame (1a) is displayed through the control unit (60). Claim 9 An assembly device for a glass bulb type sprinkler head according to claim 8, wherein the displacement sensing unit (80) comprises: a load sensor (81) installed on the slider (35); an upper panel (82) disposed on the upper part of an auxiliary panel (35b) provided on the slider (35) and having a dog (82a) on its upper surface that contacts the load sensor (81) to generate contact pressure; a lower panel (83) disposed on the lower part of the auxiliary panel (35b) and having the pressure pad (53) mounted thereon; a vertical bar (84) installed between the upper panel (82) and the lower panel (83); and a spring (85) installed between the auxiliary panel (35b) and the lower panel (83) while surrounding the vertical bar (84). Claim 10 An assembly device for a glass bulb type sprinkler head according to claim 9, wherein the control unit (60) is set with a specific pressure value regarding the contact pressure generated by the contact between the load sensor (81) and the dog (82a), and the slider (35) descends until the contact pressure between the load sensor (81) and the dog (82a) reaches the set pressure value of the control unit (60). Claim 11 delete

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