Caulking gun structure

Abstract

The present invention discloses a caulking gun structure, which includes a housing, a connecting sleeve, a spring, a push rod, a limiting sleeve, at least one limiting member, a clutch upper seat, a plurality of balls, a clutch lower seat and a driving mechanism. The connecting sleeve is assembled in the housing and has a first-stage shaft hole. The spring is accommodated in the first-stage shaft hole. The push rod has one end abutting the spring and the other end protruding from the connecting sleeve. The limiting sleeve is connected in series with the connecting sleeve and has a through hole and at least one limiting groove. At least one limiting member has one end inserted into the limiting groove. The clutch upper seat has one end extending through the through hole to abut the push rod and constrain the limiting member, and the other end is provided with a plurality of ball grooves to accommodate each ball. The clutch lower seat abuts the housing of each ball assembly. The driving mechanism is connected in series with the clutch lower seat to provide power. By virtue of the above-mentioned components, the user can conveniently connect a pressing joint to the ejector rod in series to apply an impact force to the preset rubber strip, thereby quickly pressing the rubber strip into the rubber strip groove.

Description

Technical Field

[0001] The present invention relates to the technical field related to electric hand tools, and in particular to a caulking gun structure. Background Art

[0002] Doors and windows, which act as movable components, require sealing strips installed on their frames. These strips provide waterproofing, dustproofing, shock absorption, cushioning, and reducing or eliminating vibration and noise. Sealing strips are typically installed manually using a hammer or roller to press the strips into the strip grooves. Besides being secure and resilient, the strips must also be smooth, scratch-free, and undamaged.

[0003] The problems faced by the above-mentioned strip installation process include:

[0004] Low installation efficiency: Manual installation of sealing strips requires a lot of time and effort, especially in the case of large-scale installation, which may lead to reduced work efficiency.

[0005] High labor intensity: The installation of sealing strips requires the use of hand hammers or roller pressing tools to compact the strips, which requires a certain amount of physical strength and labor intensity, especially in long-term continuous operations.

[0006] Unsound installation: Due to manual installation factors, uneven installation or incomplete compaction may occur. This may lead to poor sealing effect or falling off during use.

[0007] In view of this, how to provide operators with suitable hand tools to improve installation efficiency, reduce operator labor, and ensure accurate installation, etc., the existing caulking tools really need to be improved. Summary of the Invention

[0008] In view of the above-mentioned problems and deficiencies in the prior art, one of the main purposes of the present invention is to provide a caulking gun structure that overcomes the deficiencies of the prior art through structural innovation.

[0009] According to the above-mentioned purpose of the present invention, the present invention discloses a caulking gun structure, comprising:

[0010] a housing;

[0011] a connecting sleeve, assembled in the housing, and having a stepped shaft hole formed through the connecting sleeve;

[0012] A spring is accommodated in the step shaft hole, and one end of the spring abuts against a preset step end surface of the step shaft hole;

[0013] a push rod, one end of which is received in the step shaft hole and abuts against the spring, and the other end of which extends through the spring and then protrudes out of the connecting sleeve;

[0014] A limiting sleeve is serially connected to one end of the connecting sleeve and has a through hole formed through the limiting sleeve and at least one limiting groove recessed in the wall of the through hole;

[0015] At least one limiting member is partially inserted into the limiting groove;

[0016] A clutch upper seat, with a rod portion and an upper seat portion at each end;

[0017] The rod portion extends through the through hole and abuts against the push rod, and the outer periphery of the rod portion is concavely provided with at least one slot for the limiter to move;

[0018] The upper seat portion is provided with a plurality of ball grooves on its end surface away from the rod portion;

[0019] A plurality of balls are accommodated one by one corresponding to the ball grooves;

[0020] A clutch lower seat, one end surface of which is concavely provided with a plurality of ball holes for accommodating the balls; and

[0021] A driving mechanism is connected in series with the clutch lower seat to provide power for driving the clutch lower seat to rotate.

[0022] Preferably, the driving mechanism includes:

[0023] A power source is installed in the housing to provide a rotational power, and a power rod of the power source is provided with a driving gear;

[0024] a serial connecting sleeve, one end of which is serially connected to the power source and is disposed on the outer peripheral side of the power rod, and has an assembly hole formed through the serial connecting sleeve;

[0025] a bearing assembled with the serial shaft sleeve and disposed in the assembly hole;

[0026] A connecting plate is connected in series with the clutch lower seat and assembled inside the bearing;

[0027] an internal gear shaft sleeve, assembled with the serial shaft sleeve, disposed in the assembly hole, and having an internal gear shaft hole formed through the internal gear shaft sleeve;

[0028] A planetary gear set comprising:

[0029] a wheel seat connected in series with the socket disc and moving in unison; and

[0030] A plurality of planetary gears are respectively pivotally arranged on the end surface of the wheel seat away from the sleeve disc and are respectively meshed with the internal gear sleeve and the driving gear.

[0031] Preferably, the end surface of the clutch lower seat away from each bead hole is provided with an inserting portion; the socket plate is matched with the inserting portion and has a socket portion.

[0032] Preferably, the stepped shaft hole is sequentially formed with a first stage segment, a second stage segment and a third stage segment with different apertures along the extension direction, wherein one end of the spring abuts against the adjacent end surfaces of the first stage segment and the second stage segment.

[0033] Preferably, a serial thread is formed on the wall of the step shaft hole at the third step section; and an outer peripheral side of the limiting sleeve matches the serial thread to form an external thread.

[0034] Preferably, one end of the push rod has a wing portion abutting against the spring.

[0035] Preferably, one end of the push rod away from the wing portion has a threaded portion.

[0036] Preferably, the socket plate and the wheel seat are connected in series by means of at least one latch.

[0037] Preferably, the end surface of the sleeve disc away from the sleeve portion is recessed with at least one first pin hole for inserting the pin; the end surface of the wheel seat away from each of the planetary gears is recessed with at least one second pin hole for inserting the pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention;

[0039] Figure 2 yes Figure 1 A partial perspective and exploded schematic diagram of the embodiment shown;

[0040] Figure 3 yes Figure 2 Schematic diagram of partial components of the embodiment shown;

[0041] Figure 4 yes Figure 3 An exploded schematic diagram of the embodiment shown;

[0042] Figure 5 yes Figure 3 Another exploded schematic diagram of the illustrated embodiment;

[0043] Figure 6 1 is a schematic cross-sectional view of an embodiment of the present invention in operation (I);

[0044] Figure 7 2 is a schematic diagram of an actuating cross section of an embodiment of the present invention.

[0045] 12: Chassis

[0046] 20: Connecting sleeve

[0047] 21: Step shaft hole

[0048] 211: First stage

[0049] 212: Second stage

[0050] 213: The third stage

[0051] 14: Spring

[0052] 16: Ejector

[0053] 162: Wing

[0054] 161: Screw joint

[0055] 30: Limiting sleeve

[0056] 31: External thread

[0057] 32: Through hole

[0058] 33: Limit slot

[0059] 18: Limiting parts

[0060] 40: Clutch seat

[0061] 41: Rod

[0062] 411: Grooving

[0063] 42: Theravada

[0064] 43: Ball groove

[0065] 50: Ball

[0066] 60: Clutch down

[0067] 61: Micropyle

[0068] 62: Connector

[0069] 70: Driving mechanism

[0070] 71: Power Source

[0071] 711: Power Rod

[0072] 712: Drive gear

[0073] 72: Series sleeve

[0074] 721: Assembly hole

[0075] 73: Palin

[0076] 74: Socket

[0077] 741: socket part

[0078] 742: First pin hole

[0079] 75: Internal gear sleeve

[0080] 751: Internal gear shaft hole

[0081] 76: Planetary gear set

[0082] 761: Wheel Seat

[0083] 7611: Second pin hole

[0084] 762: latch

[0085] 763: Planetary gear

[0086] A: Press-fit connector DETAILED DESCRIPTION

[0087] The following further describes embodiments of the caulking gun structure of the present invention with reference to the accompanying drawings. The various components in the embodiments are depicted using proportions, dimensions, deformations, or displacements appropriate for the purpose of illustration, rather than to scale, as previously explained. Identical and symmetrically arranged components in the remaining embodiments are designated by the same reference numerals. Furthermore, directional terms such as "front, back, left, right, up, down, inside, and outside" in the descriptions of the embodiments listed below refer to the specific viewing directions and are not to be construed as limiting the present invention.

[0088] See also Figures 1 to 6 As shown, the structure of the caulking gun of the present invention includes a housing 12, a connecting sleeve 20, a spring 14, a push rod 16, a limiting sleeve 30, at least one limiting member 18, a clutch upper seat 40, a plurality of balls 50, a clutch lower seat 60 and a driving mechanism 70.

[0089] The housing 12 has a preset contour that is convenient for the user to hold in hand.

[0090] The connecting sleeve 20 is assembled in the housing 12 and has a first-stage shaft hole 21 .

[0091] The step shaft hole 21 is formed by penetrating the connecting sleeve 20, and the step shaft hole 21 is sequentially formed with a first stage section 211, a second stage section 212 and a third stage section 213 of different apertures along the extension direction; wherein, a serial thread (not marked in the figure) is formed on the hole wall of the step shaft hole 21 at the third stage section 213.

[0092] The spring 14 is received in the second stage 212 of the step shaft hole 21 , and one end of the spring 14 abuts against adjacent end surfaces of the first and second stages 211 and 212 .

[0093] The push rod 16 passes through the spring 14 and protrudes out of the connecting sleeve 20 . The push rod 16 has a threaded portion 161 and a wing portion 162 at both ends along the extension direction.

[0094] The threaded connection portion 161 is exposed outside the connecting sleeve 20 and provides a preset crimping joint A for threaded connection.

[0095] The wing portion 162 is formed to extend outward from the outer peripheral side of the push rod 16 , and the wing portion 162 presses against one end of the spring 14 and is accommodated in the step shaft hole 21 .

[0096] The limiting sleeve 30 is connected in series with the connecting sleeve 20 and has an external thread 31 , a through hole 32 and at least one limiting groove 33 .

[0097] The external thread 31 is a serial thread matching the connecting sleeve 20 and is formed on the outer circumference of the limiting sleeve 30 .

[0098] The through hole 32 is formed by penetrating the limiting sleeve 30 concentrically with the step shaft hole 21 .

[0099] The limiting groove 33 is formed by recessing the wall of the through hole 32 .

[0100] One end of the limiting member 18 is arranged corresponding to the limiting groove 33 .

[0101] The clutch upper seat 40 is axially movable and assembled with the limiting sleeve 30 , wherein the clutch upper seat 40 comprises a rod portion 41 and an upper seat portion 42 . The upper seat portion 42 is further provided with a plurality of ball grooves 43 .

[0102] One end of the rod portion 41 extends through the through hole 32 of the limiting sleeve 30 and abuts against the push rod 16. It has at least one groove 411 formed on the outer side of the rod portion 41 to match the limiting groove 33 and accommodate one end of the limiting member 18.

[0103] The outer contour of the upper seat portion 42 is larger than the through hole 32 .

[0104] The ball grooves 43 are arranged around the end surface of the upper seat 42 away from the rod 41. In practice, the height of the adjacent parts of the ball grooves 43 is higher than the bottom of the ball grooves 43.

[0105] The balls 50 are accommodated one by one in the corresponding ball grooves 43 .

[0106] The clutch lower seat 60 is movably abutted against each ball 50 and is assembled to the housing 12 . The clutch lower seat 60 has a plurality of ball holes 61 and at least one inserting portion 62 .

[0107] The ball holes 61 are matched with the ball grooves 43 and are recessed on the predetermined end surface of the clutch lower seat 60 to provide partial accommodation for the balls 50 .

[0108] The inserting portion 62 is protrudingly provided on the end surface of the clutch lower seat 60 away from the bead holes 61. In practice, the inserting portion 62 is selected from a polygonal column.

[0109] The driving mechanism 70 is connected to the plug-in portion 62 and selectively drives the clutch lower seat 60 to rotate. The driving mechanism 70 includes a power source 71 , a serial shaft sleeve 72 , a bearing 73 , a sleeve 74 , an internal gear shaft sleeve 75 and a planetary gear set 76 .

[0110] The power source 71 is assembled with the housing 12 and selectively provides power. A power rod 711 of the power source 71 is assembled with a driving gear 712 .

[0111] The serial connecting sleeve 72 has one end serially connected to the power source 71 and is disposed on the outer circumference of the power rod 711 , and has an assembly hole 721 formed through the serial connecting sleeve 72 .

[0112] The bearing 73 is assembled in the assembly hole 721 .

[0113] The sleeve plate 74 is connected in series with the clutch lower seat 60 and assembled on the inner side of the bearing 73 , and has a sleeve portion 741 and at least one first pin hole 742 .

[0114] The aforementioned sleeve portion 741 is formed on a predetermined end surface of the sleeve plate 74 to match the outer contour of the plug-in portion 62 and is sleeved and moved together with the plug-in portion 62 .

[0115] The first pin hole 742 is recessed in the end surface of the socket plate 74 away from the socket portion 741 .

[0116] The internal gear shaft sleeve 75 is assembled with the serial shaft sleeve 72 and configured in the assembly hole 721, and has an internal gear shaft hole 751 formed through the internal gear shaft sleeve 75; wherein, the hole wall of the internal gear shaft hole 751 is surrounded by an internal tooth pattern (not marked with a figure number).

[0117] The planetary gear set 76 is connected in series with the sleeve plate 74 and is disposed in the internal gear sleeve 75 . The planetary gear set 76 includes a wheel seat 761 , at least one latch 762 , and a plurality of planetary gears 763 .

[0118] The aforementioned wheel seat 761 has a preset profile and can be movably accommodated in the internal gear shaft hole 751 , and a preset end surface of the wheel seat 761 matches the first pin hole 742 to form at least one second pin hole 7611 .

[0119] The latch pin 762 is inserted into the first and second pin holes 742 and 7611 respectively to connect the wheel seat 761 and the socket plate 74 in series.

[0120] The plurality of planetary gears 763 are pivotally mounted on the end surface of the wheel base 761 away from the second pin hole 7611 and respectively mesh with the internal tooth pattern (internal gear sleeve 75) and the driving gear 712 (power source 71) for joint rotation.

[0121] The above is an introduction to the structural components and assembly method of the caulking gun of a preferred embodiment provided by the present invention. The operating characteristics of the embodiment of the present invention are introduced as follows.

[0122] During implementation, the power source 71 (driving gear 712) is activated, and the traction planetary gear set 76 (each planetary gear 763) is activated, so that each planetary gear 763 rotates along the internal gear shaft hole 751 of the meshing internal gear shaft sleeve 75, and the pivoted wheel seat 761 rotates at the same time.

[0123] When the wheel seat 761 is pulled to spin, the sleeve disc 74 connected in series is moved, and the sleeve disc 74 also rotates at a constant speed with the clutch lower seat 60 connected thereto.

[0124] As the clutch lower seat 60 spins, the balls 50 partially assembled in the ball holes 61 are driven along the ball grooves 43 and exchanged into different ball grooves 43. During this process (when the balls 50 are no longer in the ball grooves 43), the clutch upper seat 40 is pushed by the balls 50 to move along the through-hole 32 of the retaining sleeve 30 toward the ejector pin 16. During this process, the rod 41 of the clutch upper seat 40 pushes the ejector pin 16 along the step shaft hole 21, compressing the spring 14.

[0125] When the balls 50 are shifted and moved into the ball grooves 43 , the spring 14 pushes the ejector rod 16 and the rod portion 41 of the clutch upper seat 40 back synchronously, so that the ejector rod 16 repeatedly forms a reciprocating axial motion.

[0126] With the above-mentioned movement pattern, the push rod 16 can be assembled with a preset shape of the pressing head A as needed, and then the pressing head A is used to press the rubber strip (not shown in the figure). The pressing head A is allowed to press the rubber strip back and forth, which is convenient for users to assemble the rubber strip.

[0127] The above description is only a preferred embodiment of the present invention, which is intended to clarify the features of the present invention and is not intended to limit the scope of the embodiments of the present invention. Equal changes made by ordinary technicians in this technical field based on the present invention, as well as changes well known to technicians in this field, should still fall within the scope of the present invention.

Claims

1. A caulking gun structure, characterized by: include a housing; a connecting sleeve, assembled in the housing, and having a stepped shaft hole formed through the connecting sleeve; A spring is accommodated in the step shaft hole, and one end of the spring abuts against a preset step end surface of the step shaft hole; a push rod, one end of which is received in the step shaft hole and abuts against the spring, and the other end of which extends through the spring and then protrudes out of the connecting sleeve; A limiting sleeve is connected in series with one end of the connecting sleeve and has a through hole formed through the limiting sleeve and at least one limiting groove recessed in the wall of the through hole; At least one limiting member is partially inserted into the limiting groove; A clutch upper seat, with a rod portion and an upper seat portion at each end; The rod portion extends through the through hole and abuts against the push rod, and the outer periphery of the rod portion is concavely provided with at least one slot for the limiter to move; The upper seat portion is provided with a plurality of ball grooves on its end surface away from the rod portion; A plurality of balls are accommodated one by one corresponding to the ball grooves; A clutch lower seat, one end surface of which is concavely provided with a plurality of ball holes for accommodating the balls; and A driving mechanism is connected in series with the clutch lower seat to provide power for driving the clutch lower seat to rotate.

2. The caulking gun structure according to claim 1, characterized in that: The driving mechanism includes: A power source is installed in the housing to provide a rotational power, and a power rod of the power source is provided with a driving gear; a serial connecting sleeve, one end of which is serially connected to the power source and is disposed on the outer peripheral side of the power rod, and has an assembly hole formed through the serial connecting sleeve; a bearing assembled with the serial shaft sleeve and disposed in the assembly hole; A connecting plate is connected in series with the clutch lower seat and assembled inside the bearing; an internal gear shaft sleeve, assembled with the serial shaft sleeve, disposed in the assembly hole, and having an internal gear shaft hole formed through the internal gear shaft sleeve; A planetary gear set comprising: a wheel seat connected in series with the socket disc and moving in unison; and A plurality of planetary gears are respectively pivotally arranged on the end surface of the wheel seat away from the sleeve disc and are respectively meshed with the internal gear sleeve and the driving gear.

3. The caulking gun structure according to claim 2, characterized in that: The end surface of the clutch lower seat away from each of the bead holes is provided with an inserting portion; the sleeve disc is matched with the inserting portion and has a sleeve portion.

4. The caulking gun structure according to claim 1, characterized in that: The step shaft hole is sequentially formed with a first step segment, a second step segment and a third step segment with different apertures along the extension direction, wherein one end of the spring abuts against the adjacent end surfaces of the first step segment and the second step segment.

5. The caulking gun structure according to claim 4, characterized in that: A serial thread is formed on the wall of the step shaft hole at the third step section; and an outer peripheral side of the limiting shaft sleeve matches the serial thread to form an external thread.

6. The caulking gun structure according to claim 1, characterized in that: One end of the push rod is provided with a wing portion which abuts against the spring.

7. The caulking gun structure according to claim 6, characterized in that: One end of the push rod away from the wing portion has a screw connection portion.

8. The caulking gun structure according to claim 3, characterized in that: The socket plate and the wheel seat are connected in series by being plugged in with at least one latch.

9. The caulking gun structure according to claim 8, characterized in that: The end surface of the sleeve disc away from the sleeve portion is recessed with at least one first pin hole for inserting the pin; the end surface of the wheel seat away from each of the planetary gears is recessed with at least one second pin hole for inserting the pin.

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