Glue gun

Abstract

The utility model relates to the technical field of gluing guns, aims to solve the problems that a clamping and locking structure of an existing gluing gun occupies a large space and is inconvenient to operate, and provides a gluing gun. The gluing gun comprises a shell, an inner gear ring and a clamping and locking assembly. The shell is provided with a first surrounding wall, the first surrounding wall limits a containing space, a first groove is formed in the inner circumferential face of the first surrounding wall in a concave mode, the first groove extends in the first direction, and the first direction is parallel to the axis direction of the containing space. The inner gear ring is rotatably arranged in the containing space and comprises an outer ring face, a plurality of bosses are arranged on the outer ring face of the inner gear ring in a protruding mode, the bosses are distributed in the circumferential direction of the outer ring face of the inner gear ring at intervals, and a clamping and locking groove is formed between every two adjacent bosses. The clamping and locking assembly comprises a clamping and locking block, and the clamping and locking block is matched with the first groove in a sliding mode and can be driven by external force to enter or exit from the clamping and locking groove in the first direction so as to clamp and lock the inner gear ring. The device has the beneficial effects that the occupied space is reduced, and the operation is more convenient.

Description

Technical Field

[0001] The present application relates to the field of power tools, and more particularly, to a caulking gun. Background Art

[0002] The locking structures of some existing caulking guns occupy a large space and are not convenient to operate. Summary of the Utility Model

[0003] The present application provides a caulking gun to solve the problems that the locking structure of the existing caulking gun occupies a large space and is inconvenient to operate.

[0004] The present application provides a caulking gun, including a housing, an internal gear ring, and a locking assembly. The housing has a first surrounding wall that defines an accommodation space. A first groove is recessed in the inner peripheral surface of the first surrounding wall and extends along a first direction, and the first direction is parallel to the axial direction of the accommodation space. The internal gear ring is rotatably disposed in the accommodation space. The internal gear ring includes an outer ring surface, and a plurality of convex platforms are protruded on the outer ring surface of the internal gear ring. The plurality of convex platforms are circumferentially spaced apart along the outer ring surface of the internal gear ring, and a locking groove is formed between every two adjacent convex platforms. The locking assembly includes a locking block, which is slidably fitted in the first groove and can be driven by an external force to enter or exit the locking groove along the first direction to lock the internal gear ring, so that the caulking gun is in a locked state, or unlock the internal gear ring, so that the caulking gun is in an unlocked state.

[0005] The internal gear ring of the present application is provided with a plurality of convex platforms, and a locking groove is formed between every two adjacent convex platforms. The first surrounding wall is recessed with a first groove, and a locking block is arranged in the first groove. The locking block can slide along the first direction to enter the locking groove to lock the internal gear ring, or exit from the locking groove to unlock the internal gear ring. The locking structure provided by the present application only needs to set a circumferentially moving locking block on the internal gear ring to achieve locking, without the need for radial movement space, reducing the radial dimension, occupying a small space, and being convenient to operate.

[0006] In a possible implementation manner, the internal gear ring includes a first region and a second region distributed along the first direction, and the convex platforms are arranged in the first region. The region where the first groove extends along the first direction covers the first region and the second region.

[0007] In a possible implementation manner, when the caulking gun is in the locked state, the radially outer side of the locking block is fitted in the first groove, and the radially inner side of the locking block corresponds to the first region, so that the caulking gun is in the locked state. When the caulking gun is in the unlocked state, the radially outer side of the locking block is fitted in the first groove, and the radially inner side of the locking block corresponds to the second region, so that the caulking gun is in the unlocked state.

[0008] In a possible implementation, the glue gun further includes a first elastic member, which is elastically supported between the locking block and the housing along a first direction so that the locking block is elastically maintained at a position corresponding to the first area.

[0009] In a possible implementation manner, a receiving groove is formed on an end surface of the locking block along the first direction toward the first elastic member, and one end of the first elastic member is fitted in the receiving groove.

[0010] In a possible implementation, the inner circumference of the first surrounding wall is outwardly concave to form a first groove, and a groove wall is formed at one end of the first groove along the first direction. When the glue gun is in a locked state, the first elastic member elastically presses the locking block against the groove wall to keep the locking block at a position corresponding to the first area.

[0011] In a possible embodiment, the locking assembly further includes a pressing member and a connecting rod. The pressing member is arranged outside the first surrounding wall. The groove wall is provided with a first through hole. The connecting rod has a first end and a second end opposite to each other along a first direction, the first end is connected to the locking block, and the second end passes through the first surrounding wall from the first through hole and is connected to the pressing member.

[0012] In a possible embodiment, the glue gun includes a second elastic member. The pressing member includes a pressing portion and a connecting plate. The pressing portion is slidably matched with the housing, and the connecting plate is connected between the connecting rod and the pressing portion. The second elastic member is elastically supported between the housing and the pressing portion along a first direction, so that the pressing portion has a tendency to move outward from the housing along the first direction. The pressing portion has a matching groove, and the connecting rod extends into the matching groove along the first direction, so that the pressing member can drive the locking block to move along the first direction.

[0013] In a possible implementation, the glue gun includes a driving member, a transmission assembly and a pushing mechanism. The transmission assembly includes an inner gear ring. The driving member is connected to the pushing mechanism through the transmission assembly to squeeze out the glue in the sealant.

[0014] In a possible implementation, the glue gun further includes a second surrounding wall. The transmission assembly includes a first transmission assembly and a second transmission assembly. The first transmission assembly includes an inner gear ring. The first transmission assembly is matched with the first surrounding wall, and the second transmission assembly is matched with the second surrounding wall. The first transmission assembly is matched with the second transmission assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 3D schematic diagram of a sealant gun according to an embodiment of the present application;

[0017] Figure 2 Cross-sectional view of a partial structure of the sealant gun according to an embodiment of the present application in the locked state;

[0018] Figure 3 Cross-sectional view of the sealant gun according to an embodiment of the present application in the locked state;

[0019] Figure 4 Cross-sectional view of a partial structure of the sealant gun according to an embodiment of the present application in the unlocked state;

[0020] Figure 5 Cross-sectional view of the sealant gun according to an embodiment of the present application in the unlocked state;

[0021] Figure 6 is Figure 1 exploded view of a partial structure of the sealant gun in

[0022] Description of main component symbols:

[0023] Sealant gun 1000

[0024] Housing 100

[0025] First enclosure wall 10

[0026] Accommodation space 101

[0027] First groove 102

[0028] Groove wall 103

[0029] First through hole 104

[0030] Internal gear ring 11

[0031] Outer ring surface 111

[0032] Boss 113

[0033] Locking groove 114

[0034] First region 115

[0035] Second region 116

[0036] Locking assembly 12

[0037] Locking block 121

[0038] Receiving groove 1211

[0039] Pressing member 122

[0040] Pressing portion 1221

[0041] Fitting groove 1222

[0042] Connecting plate 1223

[0043] Second elastic member 1226

[0044] Connecting rod 123

[0045] First end 1231

[0046] Second end 1232

[0047] First elastic member 13

[0048] Transmission assembly 15

[0049] First transmission assembly 1511

[0050] Second transmission assembly 1512

[0051] Driver 16

[0052] Pushing mechanism 17

[0053] Installation groove 171

[0054] Connecting rod 172

[0055] Connecting rod handle 173

[0056] Second enclosure wall 18

[0057] First direction Z Specific embodiments

[0058] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0059] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. When an element is considered to be "disposed on" another element, it can be directly disposed on the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0061] Some embodiments of this application will be described in detail. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0062] Embodiment

[0063] See Figure 1 , this embodiment provides a caulking gun 1000. The caulking gun 1000 includes a driving member 16 and a pressing mechanism 17. The driving member 16 is disposed in the housing 100 of the caulking gun 1000. The pressing mechanism 17 includes a mounting groove 171, a connecting rod 172, and a connecting rod handle 173. The mounting groove 171 is connected to the housing 100. The mounting groove 171 is used to load sealant (not shown in the figure). The connecting rod 172 is disposed in the housing 100. The connecting rod 172 has opposite ends. One end of the connecting rod 172 passes through the housing 100 and is connected to the connecting rod handle 173, and the other end extends into the mounting groove 171. The driving member 16 is used to drive the pressing mechanism 17 so that the end of the connecting rod 172 extending into the mounting groove 171 can move between the groove walls 103 on both sides in the longitudinal direction of the mounting groove 171 to abut against the sealant in the mounting groove 171 and extrude the adhesive material in the sealant.

[0064] In this embodiment, the number of the pressing mechanisms 17 is one group.

[0065] In other embodiments, the number of the pressing mechanisms can also be two groups or multiple groups.

[0066] See Figures 2 to 5, in this embodiment, the caulking gun 1000 includes a housing 100, an internal gear ring 11, and a locking assembly 12. The housing 100 has a first surrounding wall 10, the first surrounding wall 10 defines an accommodation space 101, and a first groove 102 is recessed in the inner peripheral surface of the first surrounding wall 10. The first groove 102 extends along a first direction Z, and the first direction Z is parallel to the axis direction of the accommodation space 101. The internal gear ring 11 is rotatably disposed in the accommodation space 101. The internal gear ring 11 includes an outer ring surface 111, and a plurality of bosses 113 are protruded on the outer ring surface 111 of the internal gear ring 11. The plurality of bosses 113 are circumferentially spaced apart along the outer ring surface 111 of the internal gear ring 11, and a locking groove 114 is formed between every two adjacent bosses 113. The locking assembly 12 includes a locking block 121. The locking block 121 is slidably fitted in the first groove 102 and can enter or exit the locking groove 114 along the first direction Z under the drive of an external force to lock the internal gear ring 11, so that the caulking gun 1000 is in a locked state, or unlock the internal gear ring 11, so that the caulking gun 1000 is in an unlocked state.

[0067] In this embodiment, the internal gear ring 11 can be rotated under the drive of the driving member 16, and then drive the pressing mechanism 17. When the internal gear ring 11 is locked and stops rotating, the driving member 16 cannot drive the pressing mechanism 17.

[0068] In this embodiment, the internal gear ring 11 includes a first region 115 and a second region 116 distributed along the first direction Z, and the bosses 113 are disposed in the first region 115. The region where the first groove 102 extends along the first direction Z covers the first region 115 and the second region 116.

[0069] In this embodiment, when the caulking gun 1000 is in the unlocked state (see Figure 4 and Figure 5 ), the locking block 121 exits the locking groove 114 along the first direction Z to unlock the internal gear ring 11 and make the internal gear ring 11 rotate. When the caulking gun 1000 is in the locked state (see Figure 2 and Figure 3 ), the locking block 121 moves along the first direction Z and presses against the boss 113. The internal gear ring 11 rotates, so that the locking groove 114 corresponds to the locking block 121 along the first direction Z. The locking block 121 enters the locking groove 114 and locks the internal gear ring 11 to stop the internal gear ring 11 from rotating.

[0070] In this embodiment, the outer ring surface 111 of the internal gear ring 11 includes a first region 115 and a second region 116. When the locking block 121 corresponds to the first region 115, the locking block 121 can lock the internal gear ring 11, causing the caulking gun 1000 to be in a locked state. When the locking block 121 corresponds to the second region 116, the locking block 121 can unlock the internal gear ring 11, causing the caulking gun 1000 to be in an unlocked state. In this way, the locking block 121 can move corresponding to the regions of the outer ring surface 111 of the internal gear ring 11 to complete the locking and unlocking of the internal gear ring 11, enabling the locking structure to occupy less space.

[0071] In some prior arts, the locking structure drives the locking block to move radially into or out of the locking groove through a radially arranged locking element, and a receiving space needs to be arranged radially to enable the locking element to move radially. The locking structure occupies a large space and is not convenient for operation.

[0072] In this embodiment, the caulking gun 1000 further includes a first elastic member 13. The first elastic member 13 is elastically supported between the locking block 121 and the housing 100 along the first direction Z, so that the locking block 121 is elastically held at the position corresponding to the first region 115.

[0073] In this embodiment, a receiving groove 1211 is formed on the end surface of the locking block 121 facing the first elastic member 13 along the first direction Z. The first elastic member 13 is disposed in the receiving groove 1211 to abut against the locking block 121 along the first direction Z.

[0074] In this embodiment, the inner peripheral surface of the first enclosure wall 10 is recessed outward to form a first groove 102, and a groove wall 103 is formed at one end of the first groove 102 along the first direction Z. When the caulking gun 1000 is in the locked state, the first elastic member 13 elastically abuts the locking block 121 against the groove wall 103, so that the locking block 121 is held at the position corresponding to the first region 115.

[0075] In this embodiment, when the caulking gun 1000 is in the locked state, the radially outer side of the locking block 121 is fitted into the first groove 102, and the radially inner side of the locking block 121 corresponds to the first region 115, so that the caulking gun 1000 is in the locked state. When the caulking gun 1000 is in the unlocked state, the radially outer side of the locking block 121 is fitted into the first groove 102, and the radially inner side of the locking block 121 corresponds to the second region 116, so that the caulking gun 1000 is in the unlocked state.

[0076] In this embodiment, when the caulking gun 1000 is in the unlocked state, the radially inner side of the locking block 121 along the internal gear ring 11 extends into the locking groove 114, and the radially outer side of the locking block 121 along the internal gear ring 11 extends into the first groove 102 to lock the internal gear ring 11 and prevent the internal gear ring 11 from rotating.

[0077] In this embodiment, the latching assembly 12 further includes a pressing member 122 and a connecting rod 123. The pressing member 122 is disposed outside the first enclosure wall 10. The first groove 102 is provided with a first through hole 104. The connecting rod 123 has a first end 1231 and a second end 1232 opposite to each other along the first direction Z. The first end 1231 is connected to the latching block 121, and the second end 1232 passes through the first through hole 104 out of the first enclosure wall 10 and is connected to the pressing member 122.

[0078] In this embodiment, the caulking gun 1000 includes a second elastic member 1226. The pressing member 122 includes a pressing portion 1221 and a connecting plate 1223. The pressing portion 1221 is slidably fitted to the housing 100. The connecting plate 1223 is connected between the connecting rod 123 and the pressing portion 1221. The second elastic member 1226 is elastically supported between the housing 100 and the pressing portion 1221 along the first direction Z, so that the pressing portion 1221 has a tendency to move out of the housing 100 along the first direction Z. The pressing portion 1221 has a mating groove 1222. The connecting rod 123 extends into the mating groove 1222 along the first direction Z, so that the pressing member 122 can drive the latching block 121 to move along the first direction Z.

[0079] In this embodiment, a part of the structure of the pressing member 122 extends out of the side of the housing 100 along the first direction Z, so that the operator can press the pressing member 122 to achieve unlocking.

[0080] In some prior arts, the pressing member is disposed at the front end of the caulking machine, which is not convenient for operation.

[0081] In this embodiment, the pressing member 122 can drive the connecting rod 123 under the action of an external force to drive the latching block 121 to move along the first direction Z.

[0082] In this embodiment, the part of the pressing portion 1221 that mates with the housing 100 is cylindrical. The housing 100 is provided with a groove that mates with the cylindrical part so that the pressing member 122 is slidably fitted to the housing 100.

[0083] See Figure 6 , in this embodiment, the caulking gun 1000 includes a driving member 16, a transmission assembly 15, and a pushing mechanism 17. The transmission assembly 15 includes an internal gear ring 11. The driving member 16 is drivingly connected to the pushing mechanism 17 through the transmission assembly 15 (including a first transmission assembly 1511 and a second transmission assembly 1512) for extruding the glue in the sealant.

[0084] In this embodiment, the caulking gun 1000 further includes a second surrounding wall 18. The transmission assembly 15 includes a first transmission assembly 1511 and a second transmission assembly 1512. The first transmission assembly 1511 includes an internal gear ring 11. The first transmission assembly 1511 is disposed in cooperation with the first surrounding wall 10, and the second transmission assembly 1512 is disposed in cooperation with the second surrounding wall 18. The first transmission assembly 1511 is in transmission cooperation with the second transmission assembly 1512.

[0085] In summary, for the caulking gun 1000 provided in this embodiment, by recessing a first groove 102 in the first surrounding wall 10 of the housing 100 and providing a plurality of protrusions 113 on the outer ring surface 111 of the internal gear ring 11, a locking groove 114 is formed between every two adjacent protrusions 113. The locking block 121 is disposed in the first groove 102 and a locking groove 114 to lock the internal gear ring 11. The locking block 121 can slide along the first direction Z to enter the locking groove 114 to lock the internal gear ring 11, or withdraw from the locking groove 114 to unlock the internal gear ring 11. The locking structure provided in this embodiment realizes locking by providing the locking block 121 that moves axially along the internal gear ring 11, without the need to provide a structure that moves radially, and the moving area of the locking block 121 is included in the axial area of the internal gear ring 11, reducing the radial occupied space, with a small occupied space and convenient operation.

[0086] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A caulking gun, characterized in that, Comprising: A housing having a first surrounding wall that defines an accommodation space. An inner circumferential surface of the first surrounding wall is concavely provided with a first groove that extends in a first direction parallel to an axial direction of the accommodation space. An internal gear ring rotatably disposed in the accommodation space. The internal gear ring includes an outer ring surface, and a plurality of bosses are convexly provided on the outer ring surface of the internal gear ring. The plurality of bosses are circumferentially spaced apart along the outer ring surface of the internal gear ring, and a locking groove is formed between every two adjacent bosses. A locking assembly including a locking block slidably engaged with the first groove and capable of entering or exiting the locking groove along the first direction under the drive of an external force to lock the internal gear ring, so that the caulking gun is in a locked state, or unlock the internal gear ring, so that the caulking gun is in an unlocked state.

2. The caulking gun according to claim 1, wherein: The internal gear ring includes a first region and a second region distributed along the first direction, and the bosses are provided in the first region. A region where the first groove extends along the first direction covers the first region and the second region.

3. The caulking gun according to claim 2, wherein: When the caulking gun is in the locked state, a radially outer side of the locking block is engaged with the first groove, and a radially inner side of the locking block corresponds to the first region, so that the caulking gun is in the locked state. When the caulking gun is in the unlocked state, a radially outer side of the locking block is engaged with the first groove, and a radially inner side of the locking block corresponds to the second region, so that the caulking gun is in the unlocked state.

4. The caulking gun according to claim 2, wherein: The caulking gun further includes a first elastic member elastically supported between the locking block and the housing along the first direction, so that the locking block is elastically held at a position corresponding to the first region.

5. The caulking gun according to claim 4, wherein: An accommodation groove is formed in an end surface of the locking block facing the first elastic member along the first direction, and one end of the first elastic member is engaged in the accommodation groove.

6. The caulking gun according to claim 5, wherein: The inner circumferential surface of the first surrounding wall is concavely formed to form the first groove and form a groove wall at one end of the first groove along the first direction. When the caulking gun is in the locked state, the first elastic member elastically abuts the locking block against the groove wall, so that the locking block is held at a position corresponding to the first region.

7. The caulking gun according to claim 6, wherein: The locking assembly further includes a pressing member and a connecting rod. The pressing member is disposed outside the first surrounding wall; a first through hole is formed in the groove wall. The connecting rod has a first end and a second end opposite to each other along the first direction. The first end is connected to the locking block, and the second end passes through the first through hole out of the first surrounding wall and is connected to the pressing member.

8. The caulking gun according to claim 7, wherein: The caulking gun includes a second elastic member; The pressing member includes a pressing portion and a connecting plate; The pressing portion is slidably engaged with the housing, and the connecting plate is connected between the connecting rod and the pressing portion; The second elastic member is elastically supported between the housing and the pressing portion in a first direction, so that the pressing portion has a tendency to move outward from the housing in the first direction; The pressing portion has a mating groove, and the connecting rod extends into the mating groove in the first direction, so that the pressing member can drive the locking block to move in the first direction.

9. The caulking gun according to claim 1, wherein: The caulking gun includes a driving member, a transmission assembly and a pressing mechanism; the transmission assembly includes the internal gear ring; The driving member is drivingly connected to the pressing mechanism through the transmission assembly for extruding the glue in the sealant.

10. The caulking gun according to claim 9, wherein: The caulking gun further includes a second surrounding wall; The transmission assembly includes a first transmission assembly and a second transmission assembly; the first transmission assembly includes the internal gear ring; the first transmission assembly is engaged with the first surrounding wall, and the second transmission assembly is engaged with the second surrounding wall; the first transmission assembly is drivingly engaged with the second transmission assembly.

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