Opening type clamp

Abstract

The utility model provides an opening type clamp, relates to the technical field of machining tools, and solves the technical problems that manual operation wastes manpower and has potential safety hazards. The device comprises two clamp bodies, the clamp bodies are both in a V shape, the corner positions of the two clamp bodies are hinged, one end of each clamp body is a handle pressing part, the other end of each clamp body is an opening end, clamping protrusions are correspondingly arranged at the opening ends of the two clamp bodies, and limiting grooves used for limiting a metal clamp are formed in the ends, deviating from each other, of each pair of clamping protrusions. The tool is used for opening the metal clamp through the cooperation of the two clamp bodies so as to clamp a window corner, and the tool can avoid the problems that manpower is wasted and potential safety hazards exist due to manual operation.

Description

Technical Field

[0001] The utility model relates to the technical field of processing tools, in particular to an open-type clamp. Background Art

[0002] During the assembly process of windows, the window corners are usually made of two 45° beveled window frames. The insides of the two window frames are connected by corner connectors. After the connection, there are often joints at the window corners. In actual production, metal clamps are needed to clamp the two window frames. However, the metal clamps need to be stretched open and clamped to the two window frames at the outer corners. However, manual stretching is often used. Manual stretching requires a lot of force and can easily injure the hands, resulting in a waste of manpower and safety hazards. Utility Model Content

[0003] The purpose of the present invention is to provide an open-type clamp that solves the technical problems of manual operation, which wastes manpower and poses safety hazards. The various technical effects that can be produced by the preferred technical solution among the various technical solutions provided by the present invention are described in detail below.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] The utility model provides an open-type clamp, comprising two clamp bodies, both of which are V-shaped, hinged at the corners of the two clamp bodies, one end of the clamp body being a handle pressing portion, and the other end being an open end, the open ends of the two clamp bodies being correspondingly provided with snap-fit ​​protrusions, and a limiting groove for limiting the metal clamp being provided on the opposite ends of each pair of the snap-fit ​​protrusions.

[0006] Preferably, the number of the clamping protrusions is at least two pairs, and the clamping protrusions on the same caliper body are arranged along the length direction of the caliper body.

[0007] Preferably, the number of the clamping protrusions is two pairs, and the clamping protrusions on the same caliper body are arranged on two end surfaces of the caliper body that are opposite to each other.

[0008] Preferably, mounting protrusions are provided on opposite end surfaces of the handle pressing portions, and a spring is provided between the mounting protrusions. The spring has a tendency force to push the two handle pressing portions toward opposite directions.

[0009] Preferably, a linear drive device is provided between the two handle pressing parts.

[0010] Preferably, the linear drive device is a pneumatic cylinder, a hydraulic cylinder or a linear motor.

[0011] Preferably, a circular connecting piece is provided at the corner position of the pliers body, and limiting protrusions are provided on both sides of the circular connecting piece close to the handle pressing portion and the open end. The end of the limiting protrusion away from the pliers body is a tightening end, and the center of the circular connecting piece is located on the side of the line connecting the two tightening ends away from the pliers body.

[0012] Preferably, the circular connecting pieces of the two pliers bodies are hinged, the abutting ends are inclined end surfaces, and the opposite abutting ends of the two pliers bodies can abut against each other.

[0013] This application adopts the above technical solution, which has at least the following beneficial effects:

[0014] The expansion type clamp includes two clamp bodies, both of which are V-shaped. The corners of the two clamp bodies are hinged. One end of the clamp body is a handle pressing part, and the other end is an expansion end. In this structure, the expansion end can be expanded when the handle pressing part is pressed. The expansion ends of the two clamp bodies are correspondingly provided with clamping protrusions. A limiting groove for limiting the metal clamp is provided on the opposite end of each pair of clamping protrusions, and the metal clamps are temporarily fixed respectively through the limiting grooves on the clamping protrusions to ensure that the metal clamp can be smoothly expanded. In this way, the metal clamp can be smoothly clamped to the window corner. Such a tool can greatly reduce labor intensity and avoid safety hazards.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the main structure of the open type clamp provided by an embodiment of the utility model;

[0018] Figure 2 This is a side view of the structure of the open clamp provided by an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the exploded structure of the expansion clamp provided by an embodiment of the utility model.

[0020] In the figure, 1 is the handle pressing part; 2 is the opening end; 3 is the clamping protrusion; 4 is the limiting groove; 5 is the installation protrusion; 6 is the circular connecting piece; 7 is the limiting protrusion; 8 is the tightening end. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] The specific embodiment of the utility model provides a kind of open type clamp, combined with the attached Figure 1 - Attachment Figure 3 As shown, it includes two pliers bodies, both of which are V-shaped. The corners of the two pliers bodies are hinged. One end of the pliers body is a handle pressing part 1, and the other end is an open end 2. The open ends 2 of the two pliers bodies are correspondingly provided with snap-fit ​​protrusions 3, and each pair of snap-fit ​​protrusions 3 are provided on the opposite ends thereof with a limiting groove 4 for limiting the metal clamp.

[0023] The two V-shaped clamps are hinged at the corner. This type of connection does not have a clamping function. Its purpose is to open the metal clamp. Specifically, by pressing the handle pressing part 1, the open ends 2 of the two clamps can be moved away from each other. The clamping protrusions 3 are provided on the open ends 2, and the limiting grooves 4 are provided on the clamping protrusions 3. The clamping protrusions 3 on the two clamps can be used to limit the metal clamp, ensuring that the metal clamp will not fall off during opening. At this time, the metal clamp can be set to the window corner. This type of clamp can avoid the waste of manpower and safety hazards caused by workers manually opening the metal clamp.

[0024] In the specific embodiment of the present application, there are at least two pairs of engaging protrusions 3, and the engaging protrusions 3 on the same pliers body are arranged along the length of the pliers body. Because the pliers body is V-shaped, the two open ends 2 of the pliers body gradually move away from each other from the corner position to the position away from the corner position. In this way, the engaging protrusions 3 arranged in different positions can be used with metal clamps of different sizes.

[0025] In some embodiments, there are two pairs of snap-fit ​​protrusions 3, and the snap-fit ​​protrusions 3 on the same pliers body are arranged on the two end surfaces of the pliers body that are opposite to each other. In this way, when a pair of snap-fit ​​protrusions 3 near the corner position are used to open the metal clamp, the influence of the snap-fit ​​protrusions 3 at the outer position can be avoided.

[0026] In some embodiments, mounting protrusions 5 are provided on opposing end surfaces of the handle pressing portion 1, with a spring disposed between the mounting protrusions 5. The spring exerts a force that tends to push the two handle pressing portions 1 in opposite directions. When the spring is compressed, the handle pressing portions 1 are pushed into an open state, while the corresponding open ends 2 are in an initial, close state.

[0027] In some embodiments, a linear drive device may be further provided between the two handle pressing portions 1. The linear drive device drives the opening and closing of the two handle pressing portions 1. When the handle pressing portions 1 are opened, they are in the initial state. At this time, the metal clamp can be placed on the engaging protrusion 3 of the opened end 2. The linear drive device then drives the two handle pressing portions 1 to move in the closing direction, thereby opening the metal clamp. After the metal clamp is aligned with the window corner, the linear drive device drives the two handle pressing portions 1 to open, thereby releasing the metal clamp to clamp the window corner.

[0028] The linear drive device can be a cylinder, a hydraulic cylinder or a linear motor, preferably a cylinder, which has a fast response speed and high efficiency. Specifically, the two ends of the cylinder are hinged to the two handle pressing parts 1 respectively, so that the two handle pressing parts 1 can be driven.

[0029] In some embodiments, the Figure 3 As shown, a circular connecting piece 6 is provided at the corner position of the pliers body, and limiting protrusions 7 are provided on both sides of the circular connecting piece 6 close to the handle pressing part 1 and the spread end 2. The limiting protrusions 7 on both sides can limit the swing angle of the two pliers bodies relative to each other. The end of the limiting protrusion 7 away from the pliers body is the tightening end 8, that is, the limiting protrusions 7 on the two pliers bodies can tighten against each other and limit the position. The center of the circular connecting piece 6 is located on the side of the line connecting the two tightening ends 8 away from the pliers body. Such an arrangement allows the circular connecting piece 6 to be close to the outside of the pliers body, so that the two limiting protrusions 7 on both sides will not protrude too much, so that there is a certain rotation angle between the two pliers bodies.

[0030] Specifically, the circular connecting pieces 6 of the two pliers bodies in this application are hinged, a hinge hole is provided on the circular connecting piece 6, a hinge column is passed through the two circular connecting pieces 6 for hinged connection, the tightening end 8 is an inclined end face, and the relative tightening ends 8 of the two pliers bodies can be pressed against each other.

[0031] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", "some examples", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0032] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A spreading clamp, characterized in that: It includes two pliers bodies, both of which are V-shaped. The corners of the two pliers bodies are hinged. One end of the pliers body is a handle pressing part, and the other end is an open end. The open ends of the two pliers bodies are correspondingly provided with clamping protrusions, and each pair of clamping protrusions is provided with a limiting groove for limiting the metal clamp on the end facing away from each other.

2. The expansion clamp according to claim 1, characterized in that: The number of the clamping protrusions is at least two pairs, and the clamping protrusions on the same caliper body are arranged along the length direction of the caliper body.

3. The expansion clamp according to claim 2, characterized in that: The number of the clamping protrusions is two pairs, and the clamping protrusions on the same caliper body are arranged on two end surfaces of the caliper body that are away from each other.

4. The expansion clamp according to claim 1, wherein: Mounting protrusions are provided on the opposite end surfaces of the handle pressing parts, and a spring is provided between the mounting protrusions. The spring has a tendency force to push the two handle pressing parts toward opposite directions.

5. The expansion clamp according to claim 1, wherein: A linear drive device is provided between the two handle pressing parts.

6. The expansion clamp according to claim 5, characterized in that: The linear drive device is a cylinder, a hydraulic cylinder or a linear motor.

7. The expansion clamp according to claim 1, wherein: A circular connecting piece is provided at the corner position of the pliers body, and limiting protrusions are provided on both sides of the circular connecting piece close to the handle pressing part and the expanded end. The end of the limiting protrusion away from the pliers body is the tightening end, and the center of the circular connecting piece is located on the side of the line connecting the two tightening ends away from the pliers body.

8. The expansion clamp according to claim 7, characterized in that: The circular connecting pieces of the two pliers bodies are hinged, the abutting ends are inclined end surfaces, and the opposite abutting ends of the two pliers bodies can abut against each other.

Images