A multi-ram airless paint gun

Abstract

The utility model provides a kind of multi-push rod glue gun, including gun body, glue cylinder, trigger, push plate and push rod assembly;Wherein, glue cylinder is installed at the front end of gun body;Push rod assembly includes a pressure plate, at least one front spring and at least two push rods;Wherein, pressure plate is located in glue cylinder;Push rod is movably arranged on gun body and front end is inserted into glue cylinder, and is connected with pressure plate;Push plate is sleeved on push rod;Front spring is sleeved on push rod, and front end is abutted with gun body, rear end is abutted with push plate;Gun body has abutment, and the upper end of push plate is abutted with abutment.The utility model structure design is reasonable, and push plate and push rod can be effectively prevented from skidding.

Description

Technical Field

[0001] This utility model relates to glue guns, and more particularly to a multi-push rod glue gun. Background Technology

[0002] A caulking gun is a tool for dispensing adhesive, commonly used for silicone sealant, grout sealant, etc. Currently, most caulking guns on the market only have a single push rod. As the amount of adhesive decreases, the force required to press the trigger gradually increases, which can easily lead to slippage between the push rod and the ejector plate, affecting the normal use of the caulking gun. This problem urgently needs to be solved. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a multi-push rod glue gun, which has the characteristics of reasonable structural design.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A multi-push rod glue gun includes a gun body, a glue cartridge, a trigger, a push plate, and a push rod assembly. The glue cartridge is mounted on the front end of the gun body. The push rod assembly includes a pressure plate, at least one front spring, and at least two push rods. The pressure plate is located inside the glue cartridge. The push rods are movably mounted on the gun body, with their front ends extending into the glue cartridge and connected to the pressure plate. The push plate is sleeved on the push rods. The front spring is sleeved on the push rods, with its front end abutting against the gun body and its rear end abutting against the push plate. The gun body has an abutting portion, and the upper end of the push plate abuts against the abutting portion. The trigger is hinged to the gun body and is used to drive the push plate to swing during rotation, thereby moving the push rods forward.

[0005] Preferably, the gun body is provided with a limiting groove, and the front end of the front spring extends into the limiting groove.

[0006] Preferably, the push rod assembly further includes a connecting portion for connecting the tails of all the push rods together.

[0007] Preferably, the connecting part and the push rod are integrally formed.

[0008] Preferably, the connecting part is U-shaped.

[0009] Preferably, the number of front springs is the same as the number of push rods, and they are respectively fitted onto the push rods one-to-one.

[0010] The main technical effects of this utility model are reflected in the following aspects: By setting multiple push rods, the contact area between the push rods and the push plate can be increased, thereby reducing the possibility of slippage. Connecting multiple push rods together can prevent them from moving out of sync. Attached Figure Description

[0011] Figure 1 This is an overall schematic diagram of the multi-push rod glue gun in the embodiment; Figure 2 This is an exploded view of the trigger assembly in the embodiment.

[0012] Reference numerals: 1. Gun body; 11. Abutment part; 12. Limiting groove; 2. Rubber tube; 3. Trigger; 31. Push rod; 32. Hinge shaft; 4. Push plate; 41. Extension block; 51. Pressure plate; 52. Push rod; 53. Front spring; 54. Connecting part. Detailed Implementation

[0013] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0014] like Figure 1-2 As shown, this embodiment aims to provide a multi-push rod 52 glue gun, which includes a gun body 1, a glue cylinder 2, a trigger 3, a push plate 4, and a push rod assembly.

[0015] The glue cartridge 2 is installed at the front end of the gun body 1 to hold the glue bag.

[0016] The push rod assembly includes a pressure plate 51, at least one front spring 53, at least two push rods 52, and a connecting part 54. The pressure plate 51 is located inside the rubber cylinder 2; the push rods 52 are movably mounted on the gun body 1 and extend into the rubber cylinder 2 at their front ends, and are connected to the pressure plate 51.

[0017] It is worth noting that the number of push rods 52 can be appropriately increased depending on the size or structural design of the glue gun. However, the ultimate goal is to increase the effective contact area between the push rods 52 and the push plate 4.

[0018] As shown in the figure, the gun body 1 has an inner cavity in the middle, where the front spring 53 and the push plate 4 are located. The push plate 4 is sleeved on the push rod 52, specifically, the push plate 4 has a through hole for the push rod 52 to pass through. Preferably, the number of front springs 53 is the same as the number of push rods 52, and they are sleeved on the push rods 52 one-to-one. The front end of the front spring 53 abuts against the gun body 1, and the rear end abuts against the push plate 4; the gun body 1 has an abutment part 11, and the upper end of the push plate 4 abuts against the abutment part 11; under the push of the front spring 53, the push plate 4 remains in contact with the abutment part 11.

[0019] The trigger 3 is hinged to the gun body 1 and is used to drive the push plate 4 to swing when rotated, thereby moving the push rod 52 forward. Specifically, the trigger 3 is mounted on the gun body 1 via a hinge shaft 32, and a push rod 31 is also mounted on the upper end of the trigger 3, which contacts the lower end of the push plate 4. When the trigger 3 is pressed and rotated, the push rod 31 rotates forward, thereby driving the push plate 4 to swing forward. During the swing, the push rod 52 is moved forward by friction.

[0020] In addition, a limiting groove 12 is provided on the gun body 1, and the front end of the front spring 53 extends into the limiting groove 12, thereby preventing the front spring 53 from excessive lateral displacement.

[0021] The connecting part 54 described above is used to connect the tails of all the push rods 52 together. In this embodiment, taking two push rods 52 as an example, the connecting part 54 is integrally formed with the push rods 52, and has two connecting ends, which are respectively connected to one of the push rods 52. The connecting part 54 is U-shaped in general, which makes it convenient for the user to pull the push rod 52 backward.

[0022] The other components of the glue gun are shown in the figure and are basically the same as ordinary glue guns on the market, so they will not be described again in this embodiment.

[0023] It is worth noting that for two-component glue guns, only multiple sets of push rod assemblies are needed.

[0024] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A multi-push rod glue gun, characterized in that, The gun body (1), rubber sleeve (2), trigger (3), push plate (4), and push rod assembly are included. The rubber sleeve (2) is installed at the front end of the gun body (1). The push rod assembly includes a pressure plate (51), at least one front spring (53), and at least two push rods (52). The pressure plate (51) is located inside the rubber sleeve (2). The push rods (52) are movably mounted on the gun body (1) and extend into the rubber sleeve (2) at their front ends, and are connected to the pressure plate (51). The push plate (4) is sleeved on the push rod (52); the front spring (53) is sleeved on the push rod (52), and its front end abuts against the gun body (1) and its rear end abuts against the push plate (4); the gun body (1) has an abutment part (11), and the upper end of the push plate (4) abuts against the abutment part (11); the trigger (3) is hinged to the gun body (1) and is used to drive the push plate (4) to swing when rotating, so as to drive the push rod (52) to move forward.

2. A multi-push rod glue gun according to claim 1, characterized in that, The gun body (1) is provided with a limiting groove (12), and the front end of the front spring (53) extends into the limiting groove (12).

3. A multi-push rod glue gun according to claim 1, characterized in that, The push rod assembly also includes a connecting part (54) for connecting the tails of all the push rods (52) together.

4. A multi-push rod glue gun according to claim 3, characterized in that, The connecting part (54) and the push rod (52) are integrally formed.

5. A multi-push rod glue gun according to claim 4, characterized in that, The connecting part (54) is U-shaped in general.

6. A multi-push rod glue gun according to claim 1 or 2, characterized in that, The number of front springs (53) is the same as the number of push rods (52), and they are respectively fitted onto the push rods (52) one-to-one.

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