Locking device of door closer supporting arm

Abstract

The utility model discloses a locking device of a door closer supporting arm, which comprises a locking device main body sleeved on the surface of a connecting rod, a connecting device is arranged on one side of the locking device main body, a limiting device is arranged on one side of the locking device main body, and the connecting device comprises a first semicircular cylinder and a second semicircular cylinder. The first semicircular cylinder and the second semicircular cylinder are arranged on the surface of the connecting rod in a sleeving mode, rubber strips are fixedly connected to the interiors of the first semicircular cylinder and the second semicircular cylinder, a supporting block is fixedly connected to one side of the first semicircular cylinder, and a round rod is fixedly connected to one side of the supporting block. The first semicircular cylinder and the second semicircular cylinder are arranged on the surface of the connecting rod in a sleeving mode, then the rubber strip is extruded on the surface of the connecting rod, in this way, friction force is increased to a certain degree, and the locking device can be conveniently arranged on the surface of the connecting rod.

Description

Technical Field

[0001] The utility model belongs to the technical field of door closers, and more specifically relates to a locking device for a door closer support arm. Background Art

[0002] When using the locking device, fix the locking device at the connection between the connecting rod and the sliding rod. When the support arm needs to be locked, manually control the bolt to squeeze the surface of the sliding rod sliding inside the connecting rod, so that the sliding rod is fixed inside the connecting rod, which can lock the support arm well.

[0003] The inventor has found in his daily work that the locking device still has at least the following problems: when using the locking device, the locking device is fixed at the connection between the connecting rod and the sliding rod. When the support arm needs to be locked, the bolt is manually controlled to squeeze the surface of the sliding rod inserted into the inside of the connecting rod, so that the sliding rod is fixed inside the connecting rod. This can lock the support arm very well. However, in actual use, the locking device is mostly integrated. When the locking device needs to be installed, the connecting block at one end of the sliding rod needs to be removed, which makes it more troublesome to install the locking device. Utility Model Content

[0004] The main purpose of the utility model is to provide a locking device for a door closer support arm.

[0005] According to a first aspect of the utility model, there is provided a locking device for a door closer support arm, comprising a locking device body sleeved on the surface of a connecting rod, a connecting device is arranged on one side of the locking device body, a limiting device is arranged on one side of the locking device body, the connecting device comprises a first semi-cylinder and a second semi-cylinder, both of which are sleeved on the surface of the connecting rod, and rubber strips are fixedly connected to the interiors of the first semi-cylinder and the second semi-cylinder.

[0006] When using the connecting device, the first semi-cylinder and the second semi-cylinder are sleeved on the surface of the connecting rod, so that the rubber strip is squeezed on the surface of the connecting rod, which increases the friction to a certain extent and makes it convenient to set the locking device on the surface of the connecting rod.

[0007] According to the locking device of the door closer support arm described in the first embodiment of the utility model, a support block is fixedly connected to one side of the first semi-cylinder, a round rod is fixedly connected to one side of the support block, and the second semi-cylinder is rotatably sleeved on the surface of the round rod. The first semi-cylinder and the second semi-cylinder can be connected together through the support block and the round rod.

[0008] According to the locking device of the door closer support arm described in the first embodiment of the utility model, a rectangular block is fixedly connected to one side of the first semi-cylinder, and the rectangular block is inserted and slidably penetrated on one side of the second semi-cylinder. A limiting groove is provided on one side of the second semi-cylinder, and a U-shaped plate is slidably connected inside the limiting groove. A clamping groove is provided on one side of the rectangular block, and the inner wall of the clamping groove is slidably connected to the U-shaped plate. After the rectangular block passes through one side of the second semi-cylinder, the U-shaped plate is controlled to slide on the inner wall of the limiting groove, and then the U-shaped plate is slid into the inside of the clamping groove, so that the first semi-cylinder and the second semi-cylinder can be well fixed together.

[0009] According to the locking device of the door closer support arm described in the first embodiment of the utility model, a first spring is fixedly connected to one side of the inner wall of the limiting groove, and one end of the first spring close to the limiting groove is fixedly connected to one side of the U-shaped plate. The U-shaped plate is pulled toward the limiting groove by the first spring, thereby well limiting the U-shaped plate inside the locking groove.

[0010] According to the locking device of the door closer support arm described in the embodiment of the first aspect of the utility model, the limiting device includes a connecting frame, the connecting frame is slidably inserted into the top of the second semi-cylinder, the bottom of the connecting frame is fixedly connected with an arc bar, the surface of the sliding rod on which the inner wall of the connecting rod slides is evenly provided with fixing grooves, and the inner wall of the fixing groove is slidably connected to the arc bar.

[0011] When using the limit device, the connection frame is controlled to slide on the top of the second semi-cylinder so that the arc bar slides into the inside of the fixing groove. In this way, the sliding rod can be well fixed inside the connecting rod. When the sliding rod cannot slide inside the connecting rod, the support arm can be well stuck. This avoids the bolt from being squeezed on one side of the sliding rod due to long-term use, thereby avoiding the bolt from slipping due to long-term use and affecting the use of the locking device.

[0012] According to the locking device of the door closer support arm described in the first embodiment of the utility model, a second spring is sleeved on the surface of the connection frame, one end of the second spring is fixedly connected to the top of the arc strip, and one end of the second spring close to the connection frame is fixedly connected to one side of the second semi-cylinder. The second spring presses the arc strip toward the side away from the second semi-cylinder, thereby well confining the arc strip inside the fixing groove.

[0013] According to the locking device of the door closer support arm described in the embodiment of the first aspect of the utility model, a sliding groove is provided at the top of the second semi-cylinder, a sliding block is slidably connected to the inner wall of the sliding groove, an elastic rope is fixedly connected to the top of the sliding block, and one end of the elastic rope away from the sliding block is fixedly connected to the top of the connecting frame.

[0014] When the limiting device is not used, the sliding block is manually controlled to slide inside the sliding groove, and then the connecting frame is driven away from the second semi-cylinder through the elastic rope, so that the arc bar can be kept away from the fixing groove.

[0015] According to the locking device of the door closer support arm described in the first embodiment of the utility model, a rubber block is fixedly connected to one side of the inner wall of the slide slot. The sliding block passes through the rubber block so that the rubber block returns to its original shape after being squeezed, thereby limiting the sliding block to the side of the rubber block away from the slide slot.

[0016] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0017] In the locking device of the door closer support arm, a connecting device is provided. When the connecting device is used, the first semi-cylinder and the second semi-cylinder are sleeved on the surface of the connecting rod, so that the rubber strip is squeezed on the surface of the connecting rod, which increases the friction force to a certain extent, making it convenient to set the locking device on the surface of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the locking device of the door closer support arm in the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of a new rectangular block in an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of a novel U-shaped plate proposed in an embodiment of the utility model;

[0022] Figure 4 The figure is a three-dimensional structural diagram of a novel connection frame proposed in an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0028] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0029] Reference Figures 1 to 4 As shown, a locking device for a door closer support arm is provided, a connecting device 2 is provided on one side of a locking device body 1, and a limiting device 3 is provided on one side of the locking device body 1. When the locking device is used, the locking device is fixed at the connection between the connecting rod and the sliding rod. When the support arm needs to be locked, the bolt is manually controlled to squeeze the surface of the sliding rod sliding inside the connecting rod, so that the sliding rod is fixed inside the connecting rod, thereby the support arm can be well locked.

[0030] In some embodiments of the present invention, reference is made to Figure 2 and Figure 3The connecting device 2 includes a first semi-cylinder 201 and a second semi-cylinder 202. The first semi-cylinder 201 and the second semi-cylinder 202 are both sleeved on the surface of the connecting rod. The first semi-cylinder 201 and the second semi-cylinder 202 are both fixedly connected with rubber strips. When using the connecting device 2, the first semi-cylinder 201 and the second semi-cylinder 202 are sleeved on the surface of the connecting rod, so that the rubber strip is squeezed on the surface of the connecting rod, which increases the friction to a certain extent, making it convenient to set the locking device on the surface of the connecting rod.

[0031] In some embodiments of the utility model, a support block 203 is fixedly connected to one side of the first semi-cylinder 201, a round rod 204 is fixedly connected to one side of the support block 203, and the second semi-cylinder 202 is rotatably sleeved on the surface of the round rod 204. The first semi-cylinder 201 and the second semi-cylinder 202 can be connected together through the support block 203 and the round rod 204. A rectangular block 205 is fixedly connected to one side of the first semi-cylinder 201, and the rectangular block 205 is slidably inserted into one side of the second semi-cylinder 202. A limiting groove 206 is provided on one side of the second semi-cylinder 202, and a U-shaped plate 207 is slidably connected to the interior of the limiting groove 206. A clamping groove 208 is provided on one side of the rectangular block 205. The inner wall of the locking groove 208 is slidably connected to the U-shaped plate 207. After the rectangular block 205 passes through one side of the second semi-cylinder 202, the U-shaped plate 207 is controlled to slide on the inner wall of the limiting groove 206, and then the U-shaped plate 207 is slid into the inside of the locking groove 208, so that the first semi-cylinder 201 and the second semi-cylinder 202 can be well fixed together. A first spring 209 is fixedly connected to one side of the inner wall of the limiting groove 206, and one end of the first spring 209 close to the limiting groove 206 is fixedly connected to one side of the U-shaped plate 207. The U-shaped plate 207 is pulled toward the direction close to the limiting groove 206 by the first spring 209, thereby well limiting the U-shaped plate 207 inside the locking groove 208.

[0032] In some embodiments of the present invention, reference is made to Figure 4 The limiting device 3 includes a connecting frame 301, which is slidably inserted into the top of the second semi-cylinder 202. The bottom of the connecting frame 301 is fixedly connected with an arc bar 302. The surface of the sliding rod on which the inner wall of the connecting rod slides is evenly provided with fixing grooves 303. The inner wall of the fixing groove 303 and the arc bar 302 are slidably connected. When the limiting device 3 is used, the connecting frame 301 is controlled to slide on the top of the second semi-cylinder 202, so that the arc bar 302 slides into the inside of the fixing groove 303. In this way, the sliding rod can be well fixed inside the connecting rod. When the sliding rod cannot slide inside the connecting rod, the support arm can be well stuck. In this way, the bolt is prevented from being squeezed on one side of the sliding rod during long-term use, thereby preventing the bolt from slipping due to long-term use and affecting the use of the locking device.

[0033] A second spring 306 is sleeved on the surface of the connecting frame 301, one end of the second spring 306 is fixedly connected to the top of the arc strip 302, and the end of the second spring 306 close to the connecting frame 301 is fixedly connected to one side of the second semi-cylinder 202. The arc strip 302 is pressed toward the side away from the second semi-cylinder 202 by the second spring 306, so as to well restrict the arc strip 302 inside the fixed groove 303. A sliding groove 304 is provided on the top of the second semi-cylinder 202, and a sliding block 305 is slidably connected to the inner wall of the sliding groove 304. The top of the sliding block 305 is fixedly connected to an elastic rope 307. The end of the force rope 307 away from the sliding block 305 is fixedly connected to the top of the connecting frame 301. When the limiting device 3 is not in use, the sliding block 305 is manually controlled to slide inside the slide groove 304, and then the connecting frame 301 is driven away from the second semi-cylinder 202 through the elastic rope 307, so that the arc bar 302 can be moved away from the fixed groove 303. A rubber block 308 is fixedly connected to one side of the inner wall of the slide groove 304. The sliding block 305 is passed through the rubber block 308, so that the rubber block 308 returns to its original shape after being squeezed, and then the sliding block 305 is limited to the side of the rubber block 308 away from the slide groove 304.

[0034] In the locking device of the support arm of the door closer, when the locking device is used, the locking device is fixed to the connection between the connecting rod and the sliding rod. When the support arm needs to be locked, the bolt is manually controlled to squeeze the surface of the sliding rod sliding inside the connecting rod, so that the sliding rod is fixed inside the connecting rod, so that the support arm can be well locked. When the connecting device 2 is used, the first semi-cylinder 201 and the second semi-cylinder 202 are sleeved on the surface of the connecting rod, and after the rectangular block 205 passes through one side of the second semi-cylinder 202, the U-shaped plate 207 is controlled to slide on the inner wall of the limiting groove 206, and then the U-shaped plate 207 is slid into the inside of the locking groove 208, and the U-shaped plate 207 is pulled toward the direction close to the limiting groove 206 by the first spring 209, so that the U-shaped plate 207 is well limited inside the locking groove 208, so that the first semi-cylinder 201 and the second semi-cylinder 202 can be well fixed together, so that the rubber strip is squeezed on the surface of the connecting rod, which increases the friction to a certain extent, so that it is convenient to set the locking device on the surface of the connecting rod.

[0035] When the limiting device 3 is used, the connecting frame 301 is controlled to slide on the top of the second semi-cylinder 202, so that the arc strip 302 slides into the inside of the fixing groove 303, and the arc strip 302 is pressed toward the side away from the second semi-cylinder 202 by the second spring 306, so as to well limit the arc strip 302 in the inside of the fixing groove 303, so that the sliding rod can be well fixed in the inside of the connecting rod, and when the sliding rod cannot slide in the inside of the connecting rod, the support arm can be well stuck, so as to avoid the long-term use of the bolts being squeezed in the sliding rod. The locking device 302 is locked in place when the locking device 303 is unlocked and the locking device 304 is unlocked.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A locking device for a door closer support arm, characterized in that: The invention comprises a locking device body (1) sleeved on the surface of a connecting rod, a connecting device (2) is arranged on one side of the locking device body (1), a limiting device (3) is arranged on one side of the locking device body (1), and the connecting device (2) comprises a first semi-cylinder (201) and a second semi-cylinder (202), the first semi-cylinder (201) and the second semi-cylinder (202) are both sleeved on the surface of the connecting rod, and the first semi-cylinder (201) and the second semi-cylinder (202) are both fixedly connected with rubber strips inside.

2. The locking device for the door closer support arm according to claim 1, characterized in that: One side of the first semi-cylinder (201) is fixedly connected to a support block (203), one side of the support block (203) is fixedly connected to a round rod (204), and the second semi-cylinder (202) is rotatably sleeved on the surface of the round rod (204).

3. The locking device for the door closer support arm according to claim 1, characterized in that: A rectangular block (205) is fixedly connected to one side of the first semi-cylinder (201), and the rectangular block (205) is slidably inserted into one side of the second semi-cylinder (202). A limiting groove (206) is provided on one side of the second semi-cylinder (202), and a U-shaped plate (207) is slidably connected inside the limiting groove (206). A locking groove (208) is provided on one side of the rectangular block (205), and the inner wall of the locking groove (208) is slidably connected to the U-shaped plate (207).

4. The locking device for the door closer support arm according to claim 3, characterized in that: A first spring (209) is fixedly connected to one side of the inner wall of the limiting groove (206), and one end of the first spring (209) close to the limiting groove (206) is fixedly connected to one side of the U-shaped plate (207).

5. The locking device for a door closer support arm according to any one of claims 1 to 4, characterized in that: The limiting device (3) comprises a connecting frame (301), the connecting frame (301) is slidably inserted into the top of the second semi-cylinder (202), the bottom of the connecting frame (301) is fixedly connected with an arc strip (302), the surface of the sliding rod on which the inner wall of the connecting rod slides is evenly provided with fixing grooves (303), and the inner wall of the fixing groove (303) is slidably connected to the arc strip (302).

6. The locking device for the door closer support arm according to claim 5, characterized in that: A second spring (306) is sleeved on the surface of the connection frame (301), one end of the second spring (306) is fixedly connected to the top of the arc bar (302), and one end of the second spring (306) close to the connection frame (301) is fixedly connected to one side of the second semi-cylinder (202).

7. The locking device for the door closer support arm according to claim 1, characterized in that: A slide groove (304) is provided at the top of the second semi-cylinder (202); a sliding block (305) is slidably connected to the inner wall of the slide groove (304); an elastic rope (307) is fixedly connected to the top of the sliding block (305); and one end of the elastic rope (307) away from the sliding block (305) is fixedly connected to the top of the connecting frame (301).

8. The locking device of the door closer support arm according to claim 7, characterized in that: A rubber block (308) is fixedly connected to one side of the inner wall of the slide groove (304).

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