Glue gun capable of controlling glue squeezing amount

Abstract

The utility model belongs to the technical field of glue guns, and particularly relates to a glue gun capable of controlling glue squeezing quantity, which comprises a handle and a glue cylinder frame, a push rod is arranged on the handle, a push block is arranged on the handle, a driving block is arranged on the push rod, and the push block abuts against the driving block. The distance between the second rotating shaft and the pushing block is larger than the distance between the first rotating shaft and the pushing block, a limiting base is arranged on the handle, a first abutting portion and a second abutting portion are arranged on the limiting base, the first abutting portion is matched with the first rotating shaft, the second abutting portion is matched with the second rotating shaft, and an adjusting piece for adjusting the limiting base is arranged on the limiting base. When a small amount of glue is needed, the adjusting piece is rotated to the second abutting portion to abut against the second rotating shaft, extrusion of the small amount of glue is controlled conveniently through the lever principle, when a large amount of glue is needed, the adjusting piece is rotated to the first abutting portion to abut against the first rotating shaft, and the small amount of glue is extruded rapidly through the lever principle.

Description

Technical Field

[0001] The utility model belongs to the technical field of glue guns, in particular to a glue gun capable of controlling the glue squeezing amount. Background Art

[0002] The glue gun is a glue squeezing tool commonly used by individuals, families and factories. It can completely seal the gap to prevent water leakage. The glue gun pushes the glue cartridge filled with glue through the glue gun's propulsion mechanism. The glue gun basically comprises a handle, a push rod and a propulsion device. The push rod runs through the handle. A glue cartridge rack is also provided at the front end of the glue cartridge rack. The glue cartridge is provided on the glue cartridge rack. When the handle is pressed, the handle drives the propulsion device to be linked, so that the push rod is sent along the axial direction of the glue cartridge rack toward the glue outlet direction of the gun head, and the glue in the glue cartridge is discharged from the glue outlet. However, when the glue gun needs to control the glue output amount, the glue output amount is generally controlled by the power of the hand, which is very easy to control inaccurately, and the maximum value of the glue output amount is generally fixed. When the maximum amount is needed, the hand needs to press the handle to the bottom. The glue squeezing time is long and difficult to control during use. If the worker applies the glue too fast, the glue layer will be too thin, affecting the quality of the glue application. If the speed is too slow, the glue layer will accumulate, resulting in waste, affecting the effect of use, and easily affecting the scope of application of the device. Summary of the invention

[0003] The utility model aims to provide a glue gun which has a simple structure and can control the glue squeezing amount and avoids the problem that the glue discharge amount of the glue discharge nozzle is inconvenient to control during use, which affects the use effect.

[0004] The purpose of the utility model is achieved in this way:

[0005] A glue gun capable of controlling the amount of extruded glue, comprising a handle and a glue barrel holder arranged at the front end of the handle. A push rod penetrating through the handle is provided on the handle. The front end of the push rod is located inside the glue barrel holder and can move back and forth relative to the glue barrel holder. A driving handle is provided on the handle, a pushing block is provided on the driving handle, a driving block is provided on the push rod, and the pushing block abuts against the driving block. Squeezing the driving handle can drive the driving block to move forward through the pushing block. The upper end of the driving handle is provided with a first rotating shaft and a second rotating shaft. The distance between the second rotating shaft and the pushing block is greater than the distance between the first rotating shaft and the pushing block. First sliding grooves and second sliding grooves are formed on both sides of the handle. The two ends of the first rotating shaft are respectively inserted into the first sliding grooves on both sides of the handle, and the two ends of the second rotating shaft are respectively inserted into the second sliding grooves on both sides of the handle. A limiting seat is provided on the handle, and a first abutting portion and a second abutting portion are provided on the limiting seat. The first abutting portion is adapted to the first rotating shaft, and the second abutting portion is adapted to the second rotating shaft. An adjusting member is further provided on the limiting seat. Driving the adjusting member can drive the limiting seat to rotate, so that the first abutting portion abuts against the first rotating shaft and limits the first rotating shaft to move in the first sliding groove, and the second rotating shaft is disengaged from the abutting with the second abutting portion, so that when the driving handle is pressed, the driving handle rotates around the first rotating shaft, or the second abutting portion abuts against the second rotating shaft and limits the rotation of the second rotating shaft, and the first rotating shaft is disengaged from the abutting with the first abutting portion, so that when the driving handle is pressed, the driving handle rotates around the second rotating shaft.

[0006] Further, an installation hole is formed on the handle. A transmission rod is arranged between the limiting seat and the adjusting member. One end of the transmission rod is connected to the limiting seat, and the other end passes through the installation hole and is connected to the adjusting member. Driving the adjusting member can drive the limiting seat to rotate through the transmission rod.

[0007] Further, an installation groove is formed at the lower end of the adjusting member, and one end of the transmission rod is inserted into the installation groove.

[0008] Further, an indicating portion is provided on one side of the handle where the adjusting member is provided. A limiting block is prominently formed on the indicating portion, and the limiting block is located on both sides of the indicating portion. When the adjusting member is rotated to the left until the first abutting portion abuts against the first rotating shaft, the limiting block provided on the left side of the indicating portion of the adjusting member abuts and limits the adjusting portion from rotating to the left. When the adjusting member is rotated to the right until the second abutting portion abuts against the second rotating shaft, the limiting block provided on the right side of the indicating portion of the adjusting member abuts and limits the adjusting portion from rotating to the right.

[0009] Further, the lower end of the adjusting member is connected to the transmission rod. A limiting portion is integrally formed and protrudes upward from the adjusting member. The indicating portion is recessed to form a left limiting groove and a right limiting groove adapted to the limiting portion. When the adjusting member moves leftward until it abuts against the limiting block on the left side of the indicating portion, the limiting portion is located in the left limiting groove. When the adjusting member moves rightward until it abuts against the limiting block on the right side of the indicating portion, the limiting portion is located in the right limiting groove.

[0010] Further, a driving block is provided on the push rod. A through hole is formed in the driving block, and the push rod passes through the through hole. The driving block is connected to the push rod through the through hole. The lower end of the driving block abuts against the pushing block. Driving the driving handle can drive the pushing portion to move forward and cause it to push the driving block, thereby driving the push rod to move forward.

[0011] Further, a connecting member is provided between the rubber cylinder holder and the handle. One end of the connecting member is connected to the rubber cylinder holder, and the other end passes through the inside of the handle. A connecting hole is formed in the connecting member, and the push rod passes through the connecting hole. An elastic member is provided on the periphery of the connecting hole, and the other end of the elastic member abuts against the driving block. Pressing the driving handle can cause the pushing block to squeeze the lower end of the driving block and cause the driving block to squeeze the elastic member. At this time, the driving block rotates to an inclined state and is engaged with the push rod. Continuing to press it can drive the push rod to move forward.

[0012] The prominent and beneficial technical effects of the present utility model compared with the prior art are:

[0013] The purpose of the present utility model is to provide a glue gun with a simple structure that can control the amount of glue extrusion, which avoids the inconvenience of controlling the glue output of the glue nozzle during use and affects the use effect. The glue gun includes a handle and a glue cylinder holder arranged at the front end of the handle. A push rod passing through the handle is provided on the handle. The front end of the push rod is located inside the glue cylinder holder and can move back and forth relative to the glue cylinder holder. A driving handle is provided on the handle, a pushing block is provided on the driving handle, a driving block is provided on the push rod, and the pushing block abuts against the driving block. Squeezing the driving handle can drive the driving block to move forward through the pushing block. The upper end of the driving handle is provided with a first rotating shaft and a second rotating shaft. The distance between the second rotating shaft and the pushing block is greater than the distance between the first rotating shaft and the pushing block. First sliding grooves and second sliding grooves are formed on both sides of the handle. The two ends of the first rotating shaft are respectively inserted into the first sliding grooves on both sides of the handle, and the two ends of the second rotating shaft are respectively inserted into the second sliding grooves on both sides of the handle. A limiting seat is provided on the handle. The limiting seat is provided with a first abutting portion and a second abutting portion. The first abutting portion is adapted to the first rotating shaft, and the second abutting portion is adapted to the second rotating shaft. An adjusting member is further provided on the limiting seat. Driving the adjusting member can drive the limiting seat to rotate, so that the first abutting portion abuts against the first rotating shaft and restricts the first rotating shaft from moving in the first sliding groove, and the second rotating shaft is separated from the abutting of the second abutting portion. When pressing the driving handle, the driving handle rotates around the first rotating shaft, or the second abutting portion abuts against the second rotating shaft and restricts the rotation of the second rotating shaft, and the first rotating shaft is separated from the abutting of the first abutting portion. When pressing the driving handle, the driving handle rotates around the second rotating shaft. When the existing glue gun is in use, it is not convenient to control the amount of glue extrusion. If the worker applies glue too fast, the glue layer will be too thin, affecting the caulking quality. If the speed is too slow, the glue layer will accumulate, resulting in waste and affecting the use effect. The present utility model is provided with a first rotating shaft and a second rotating shaft on the driving handle, and then the adjusting member is used to adjust the driving handle to rotate around the first rotating shaft or the second rotating shaft to control the amount of glue extrusion of the glue gun. When a small amount of glue is needed, the adjusting member is rotated until the second abutting portion abuts against the second rotating shaft, and the driving handle rotates around the second rotating shaft. Through the lever principle, the second rotating shaft is relatively far from the pushing block and the driving block. Therefore, when squeezing the driving handle, the rotation arc of the driving handle is relatively large, the glue output is slower, which is convenient for controlling the extrusion of a small amount of glue and is more labor-saving. When a large amount of glue is needed, the adjusting member is rotated until the first abutting portion abuts against the first rotating shaft, and the driving handle rotates around the first rotating shaft. Through the lever principle, the second rotating shaft is relatively close to the pushing block and the driving block. Therefore, when squeezing the driving handle, the rotation arc of the driving handle is relatively small, the glue output is faster, which is convenient for quickly extruding a large amount of glue, but it is more laborious. Brief Description of the Drawings

[0014] Figure 1 is a perspective view of the present utility model.

[0015] Figure 2 is the exploded view of the present utility model.

[0016] Figure 3 is one of the sectional views of the present utility model.

[0017] Figure 4 is Figure 3 the enlarged view of part A in

[0018] Figure 5 is the second sectional view of the present utility model.

[0019] Figure 6 is Figure 5 the enlarged view of part D in

[0020] Figure 7 is the structural schematic diagram of the present utility model with half of the handle removed.

[0021] Figure 8 is the structural schematic diagram of the connection between the handle and the driving handle of the present utility model.

[0022] Figure 9 is Figure 8 the enlarged view of part B in

[0023] Figure 10 is the structural schematic diagram of the handle of the present utility model.

[0024] Figure 11 is Figure 10 the enlarged view of part C in

[0025] Figure 12 is the structural schematic diagram of the limit seat of the present utility model.

[0026] Figure 13 is the structural schematic diagram of the present utility model.

[0027] Figure 14 is the structural schematic diagram of the connection between the limit seat and the adjusting member of the present utility model.

[0028] The meanings represented by the reference numerals in the figure:

[0029] 1 - rubber cylinder holder; 2 - handle; 3 - push rod; 5 - driving handle; 6 - pushing block; 7 - first rotating shaft; 8 - second rotating shaft; 9 - first sliding groove; 10 - second sliding groove;

[0030] 11 - limit seat; 12 - first abutting portion; 13 - second abutting portion; 14 - adjusting member; 15 - mounting hole; 16 - transmission rod; 17 - mounting groove; 18 - indicating portion; 19 - limit block; 20 - limiting portion;

[0031] 21 - Left limit groove; 22 - Right limit groove; 23 - Through hole; 24 - Connecting piece; 257 - Connecting hole; 26 - Elastic piece; 27 - Driving block; 28 - Driving handle. Detailed implementation mode

[0032] The present utility model will be further described below in conjunction with specific embodiments:

[0033] A glue gun capable of controlling the glue extrusion amount includes a handle 2 and a glue barrel holder 1 provided at the front end of the handle 2. A push rod 3 penetrating through the handle 2 is provided on the handle 2. The front end of the push rod 3 is located inside the glue barrel holder 1 and can move back and forth relative to the glue barrel holder 1. A driving handle 5 is provided on the handle 2, and a pushing block 6 is provided on the driving handle 5. A driving block 27 is provided on the push rod 3. The pushing block 6 abuts against the driving block 27. Squeezing the driving handle 5 can drive the driving block 27 to move forward through the pushing block 6. A first rotating shaft 7 and a second rotating shaft 8 are provided at the upper end of the driving handle 5. The distance between the second rotating shaft 8 and the pushing block 6 is greater than the distance between the first rotating shaft 7 and the pushing block 6. First sliding grooves 9 and second sliding grooves 10 are formed on both sides of the handle 2. Both ends of the first rotating shaft 7 are respectively inserted into the first sliding grooves 9 on both sides of the handle 2, and both ends of the second rotating shaft 8 are respectively inserted into the second sliding grooves 10 on both sides of the handle 2. A limit seat 11 is provided on the handle 2. A first abutting portion 12 and a second abutting portion 13 are provided on the limit seat 11. The first abutting portion 12 is adapted to the first rotating shaft 7, and the second abutting portion 13 is adapted to the second rotating shaft 8. An adjusting member 14 is further provided on the limit seat 11. Driving the adjusting member 14 can drive the limit seat 11 to rotate so that the first abutting portion 12 abuts against the first rotating shaft 7 and restricts the movement of the first rotating shaft 7 in the first sliding groove 9, and the second rotating shaft 8 is disengaged from the abutment with the second abutting portion 13, so that when the driving handle 5 is pressed, the driving handle 5 rotates around the first rotating shaft 7, or the second abutting portion 13 abuts against the second rotating shaft 8 and restricts the rotation of the second rotating shaft 8, and the first rotating shaft 7 is disengaged from the abutment with the first abutting portion 12, so that when the driving handle 5 is pressed, the driving handle 5 rotates around the second rotating shaft 8.

[0034] The purpose of the present utility model is to provide a glue gun with a simple structure that can control the glue extrusion amount and avoid the inconvenience of controlling the glue extrusion amount of the glue outlet nozzle during use, which affects the use effect. It includes a handle 2 and a glue cylinder holder 1 provided at the front end of the handle 2. A push rod 3 passing through the handle 2 is provided on the handle 2. The front end of the push rod 3 is located inside the glue cylinder holder 1 and can move back and forth relative to the glue cylinder holder 1. A driving handle 5 is provided on the handle 2, and a pushing block 6 is provided on the driving handle 5. A driving block 27 is provided on the push rod 3, and the pushing block 6 abuts against the driving block 27. Squeezing the driving handle 5 can drive the driving block 27 to move forward through the pushing block 6. The upper end of the driving handle 5 is provided with a first rotating shaft 7 and a second rotating shaft 8. The distance between the second rotating shaft 8 and the pushing block 6 is greater than the distance between the first rotating shaft 7 and the pushing block 6. First sliding grooves 9 and second sliding grooves 10 are opened on both sides of the handle 2. The two ends of the first rotating shaft 7 are respectively inserted into the first sliding grooves 9 on both sides of the handle 2, and the two ends of the second rotating shaft 8 are respectively inserted into the second sliding grooves 10 on both sides of the handle 2. A limiting seat 11 is provided on the handle 2. A first abutting portion 12 and a second abutting portion 13 are provided on the limiting seat 11. The first abutting portion 12 is adapted to the first rotating shaft 7, and the second abutting portion 13 is adapted to the second rotating shaft 8. An adjusting member 14 is further provided on the limiting seat 11. Driving the adjusting member 14 can drive the limiting seat 11 to rotate, so that the first abutting portion 12 abuts against the first rotating shaft 7 and limits the movement of the first rotating shaft 7 in the first sliding groove 9, and the second rotating shaft 8 is disengaged from the abutment with the second abutting portion 13. When pressing the driving handle 5, the driving handle 5 rotates around the second rotating shaft 8, or the second abutting portion 13 abuts against the second rotating shaft 8 and limits the rotation of the second rotating shaft 8, and the first rotating shaft 7 is disengaged from the abutment with the first abutting portion 12. When pressing the driving handle 5, the driving handle 5 rotates around the first rotating shaft 7. When the existing glue gun is in use, it is not convenient to control the glue extrusion amount. If the worker's glue spreading speed is too fast, the glue layer will be too thin, affecting the caulking quality. If the speed is too slow, the glue layer will accumulate, resulting in waste and affecting the use effect. The present utility model is provided with a first rotating shaft 7 and a second rotating shaft 8 on the driving handle 5, and then the adjusting member 14 is used to adjust the driving handle 5 to rotate around the first rotating shaft 7 or the second rotating shaft 8 to control the glue extrusion amount of the glue gun. When a small amount of glue is needed, the adjusting member 14 is rotated until the second abutting portion 13 abuts against the second rotating shaft 8, and the driving handle 5 rotates around the second rotating shaft 8. Through the lever principle, the second rotation is relatively far from the pushing block 6 and the driving block 27. Therefore, when squeezing the driving handle 5, the rotation arc of the driving handle 5 is relatively large, and the glue extrusion is slower, which is convenient for controlling the extrusion of a small amount of glue and is more labor-saving. When a large amount of glue is needed, the adjusting member 14 is rotated until the first abutting portion 12 abuts against the first rotating shaft 7, and the driving handle 5 rotates around the first rotating shaft 7. Through the lever principle, the second rotation is relatively close to the pushing block 6 and the driving block 27. Therefore, when squeezing the driving handle 5, the rotation arc of the driving handle 5 is relatively small,The glue extrusion is relatively fast, facilitating the quick extrusion of a small or large amount of glue, but it is relatively laborious.

[0035] Preferably, an installation hole 15 is formed in the handle 2. A transmission rod 16 is provided between the limit seat 11 and the adjusting member 14. One end of the transmission rod 16 is connected to the limit seat 11, and the other end passes through the installation hole 15 and is connected to the adjusting member 14. Driving the adjusting member 14 can drive the limit seat 11 to rotate through the transmission rod 16. When the adjusting member 14 rotates to the right, it drives the limit seat 11 to rotate to the right. When the adjusting member 14 rotates to the left, it drives the limit seat 11 to rotate to the left.

[0036] Preferably, an installation groove 17 is formed at the lower end of the adjusting member 14. One end of the transmission rod 16 passes through the installation groove 17, facilitating the connection of the adjusting member 14. The installation groove 17 is a kidney-shaped groove, and the end of the transmission rod 16 is kidney-shaped and adapted to the kidney-shaped groove.

[0037] Preferably, on the side of the handle 2 where the adjusting member 14 is provided, there is an indicating portion 18. A limit block 19 is formed protruding on the indicating portion 18. The limit blocks 19 are located on both sides of the indicating portion 18. When the adjusting member 14 is rotated to the left until the first abutting portion 12 abuts against the first rotating shaft 7, the limit block 19 provided on the left side of the indicating portion 18 where the adjusting member 14 is located abuts, and restricts the adjusting portion from rotating to the left. When the adjusting member 14 is rotated to the right until the second abutting portion 13 abuts against the second rotating shaft 8, the limit block 19 provided on the right side of the indicating portion 18 where the adjusting member 14 is located abuts, and restricts the adjusting portion from rotating to the right. It can be clearly seen on the indicating portion 18 that the driving handle 5 rotates around the first rotating shaft 7 or the second rotating shaft 8, enabling the user to clearly understand the current situation of the glue gun.

[0038] Preferably, the lower end of the adjusting member 14 is connected to the transmission rod 16. A limiting portion 20 is formed protruding at the upper end of the adjusting member 14. The indicating portion 18 is recessed to form a left limiting groove 21 and a right limiting groove 22 that are adapted to the limiting portion 20. When the adjusting member 14 moves to the left until it abuts against the limit block 19 on the left side of the indicating portion 18, the limiting portion 20 is located in the left limiting groove 21. When the adjusting member 14 moves to the right until it abuts against the limit block 19 on the right side of the indicating portion 18, the limiting portion 20 is located in the right limiting groove 22, restricting the rotation of the adjusting member 14. Moreover, the left limiting groove 21 and the right limiting groove 22 prevent accidental touch during use from causing changes in the glue output volume and affecting the use effect.

[0039] Preferably, a driving block 27 is provided on the push rod 3. A through hole 23 is formed in the driving block 27. The push rod 3 passes through the through hole 23, and the driving block 27 is connected to the push rod 3 through the through hole 23. The lower end of the driving block 27 abuts against the pushing block 6. Driving the driving handle 5 can drive the pushing portion to move forward and cause it to push the driving block 27, thereby driving the push rod 3 to move forward.

[0040] Preferably, a connecting member 24 is provided between the cartridge holder 1 and the handle 2. One end of the connecting member 24 is connected to the cartridge holder 1, and the other end is disposed inside the handle 2. A connecting hole 257 is formed in the connecting member 24, and the push rod 3 is disposed through the connecting hole 257. An elastic member 26 is provided on the periphery of the connecting hole 257, and the other end of the elastic member 26 abuts against the driving block 27. Pressing the driving handle 5 can cause the pushing block 6 to squeeze the lower end of the driving block 27 and cause the driving block 27 to squeeze the elastic member 26. At this time, the driving block 27 rotates to an inclined state and is engaged with the push rod 3. Continuing to press the driving handle 5 can drive the push rod 3 to move forward.

[0041] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A glue gun capable of controlling the glue extrusion amount, characterized in that: The invention comprises a handle (2) and a rubber cartridge frame (1) arranged at the front end of the handle (2); a push rod (3) penetrating the handle (2) is arranged on the handle (2); the front end of the push rod (3) is located in the rubber cartridge frame (1) and can move forward and backward relative to the rubber cartridge frame (1); a driving handle (5) is arranged on the handle (2); a pushing block (6) is arranged on the driving handle (5); a driving block (27) is arranged on the push rod (3); the pushing block (6) abuts against the driving block (27); the driving handle (5) is squeezed to drive the pushing block (6) to move the rubber cartridge frame (1) forward and backward; The driving block (27) moves forward, the upper end of the driving handle (5) is provided with a first rotating shaft (7) and a second rotating shaft (8), the distance between the second rotating shaft (8) and the pushing block (6) is greater than the distance between the first rotating shaft (7) and the pushing block (6), both sides of the handle (2) are provided with a first sliding groove (9) and a second sliding groove (10), the two ends of the first rotating shaft (7) are respectively penetrated through the first sliding grooves (9) on both sides of the handle (2), and the two ends of the second rotating shaft (8) are respectively penetrated through the two sides of the handle (2). The handle (2) is provided with a limiting seat (11), the limiting seat (11) is provided with a first abutting portion (12) and a second abutting portion (13), the first abutting portion (12) is adapted to the first rotating shaft (7), the second abutting portion (13) is adapted to the second rotating shaft (8), the limiting seat (11) is also provided with an adjusting member (14), and the adjusting member (14) can be driven to drive the limiting seat (11) to rotate so that the first abutting portion (12) and the first rotating shaft (7) are adapted to each other. ) abuts against and restricts the movement of the first rotating shaft (7) in the first sliding groove (9), and the second rotating shaft (8) is disengaged from the abutment with the second abutment portion (13), so that when the driving handle (5) is pressed, the driving handle (5) rotates around the first rotating shaft (7), or the second abutment portion (13) abuts against the second rotating shaft (8) and restricts the rotation of the second rotating shaft (8), and the first rotating shaft (7) is disengaged from the abutment with the first abutment portion (12), so that when the driving handle (5) is pressed, the driving handle (5) rotates around the second rotating shaft (8).

2. A glue gun capable of controlling glue extrusion amount according to claim 1, characterized in that: The handle (2) is provided with a mounting hole (15), and a transmission rod (16) is provided between the limit seat (11) and the adjusting member (14). One end of the transmission rod (16) is connected to the limit seat (11), and the other end is passed through the mounting hole (15) and connected to the adjusting member (14). The driving adjusting member (14) can drive the limit seat (11) to rotate through the transmission rod (16).

3. A glue gun capable of controlling glue extrusion amount according to claim 2, characterized in that: The lower end of the adjusting member (14) is provided with a mounting groove (17), and one end of the transmission rod (16) is inserted into the mounting groove (17).

4. The glue gun capable of controlling glue extrusion amount according to claim 2, characterized in that: The handle (2) is provided with an indicating portion (18) on one side of the adjusting member (14). A limiting block (19) is protrudingly formed on the indicating portion (18). The limiting blocks (19) are located on both sides of the indicating portion (18). When the adjusting member (14) is rotated leftward until the first abutting portion (12) abuts against the first rotating shaft (7), the limiting block (19) provided on the left side of the indicating portion (18) of the adjusting member (14) abuts against the adjusting member, and limits the adjusting member from rotating leftward. When the adjusting member (14) is rotated rightward until the second abutting portion (13) abuts against the second rotating shaft (8), the limiting block (19) provided on the right side of the indicating portion (18) of the adjusting member (14) abuts against the adjusting member, and limits the adjusting member from rotating rightward.

5. The glue gun capable of controlling glue extrusion amount according to claim 4, characterized in that: The lower end of the adjusting member (14) is connected to the transmission rod (16); the upper end of the adjusting member (14) is protrudingly formed with a limiting portion (20); the indicating portion (18) is concavely formed with a left limiting groove (21) and a right limiting groove (22) adapted to the limiting portion (20); when the adjusting member (14) moves leftward to abut against a limiting block (19) on the left side of the indicating portion (18), the limiting portion (20) is located in the left limiting groove (21); when the adjusting member (14) moves rightward to abut against a limiting block (19) on the right side of the indicating portion (18), the limiting portion (20) is located in the right limiting groove (22).

6. The glue gun capable of controlling glue extrusion amount according to claim 1, characterized in that: The push rod (3) is provided with a driving block (27), a through hole (23) is opened on the driving block (27), the push rod (3) is passed through the through hole (23), the driving block (27) is connected to the push rod (3) through the through hole (23), the lower end of the driving block (27) is in contact with the pushing block (6), and driving the driving handle (5) can drive the pushing part to move forward and cause it to push the driving block (27), thereby driving the push rod (3) to move forward.

7. A glue gun capable of controlling glue extrusion amount according to any one of claims 1 to 6, characterized in that: A connecting piece (24) is provided between the rubber cartridge frame (1) and the handle (2), one end of the connecting piece (24) is connected to the rubber cartridge frame (1), and the other end is provided through the inside of the handle (2). A connecting hole (257) is provided on the connecting piece (24), and the push rod (3) is provided through the connecting hole (257). An elastic piece (26) is provided around the periphery of the connecting hole (257), and the other end of the elastic piece (26) abuts against a driving block (27). Pressing the driving handle (5) can cause the pushing block (6) to squeeze the lower end of the driving block (27) and cause the driving block (27) to squeeze the elastic piece (26). At this time, the driving block (27) rotates to an inclined state and is engaged with the pushing rod (3). Continuing to press the driving handle (5) can drive the pushing rod (3) to move forward.

Images