Clamping door stopper

Abstract

The clamping door suction pair includes a suction seat and a suction rod, the suction rod is provided with a suction rod head for inserting into the suction seat, and the suction seat is provided with an elastic clamping arm for clamping the suction rod head, and the inner side edge of the elastic clamping arm is constructed with a clamping cavity for accommodating the suction rod head, and the clamping cavity has a clamping cavity entrance facing outward and enabling the suction rod head to enter the clamping cavity; the beneficial technical effects of the present invention are: on the one hand, the elastic clamping arm uses a clamping method to fix the suction rod head, and there is no need to use magnets and iron blocks to increase its adsorption capacity, and it has a good silent effect against magnetic suction impact; on the other hand, the limiting body can provide a reverse supporting force to the elastic clamping arm, and the limiting body can provide a reverse supporting force to the elastic clamping arm by abutting against the front end portion, waist and other suitable positions of the elastic clamping arm, thereby improving the clamping ability of the elastic clamping arm to the suction rod head, so that the suction rod head is not easy to escape from the clamping cavity.

Description

Technical Field

[0001] The present invention relates to the technical field related to door stops, and in particular to a door stopper with a clamping structure. Background Art

[0002] Door stoppers are common household items, mainly used to keep the door leaf in an open state when the door is opened, and also have the function of preventing the door leaf from being closed by wind or accidental touch. For example, the Chinese utility model patent with patent number 201720421257.3 discloses a suction hole type combined silent access control, which is composed of an elastic block pasted on the door leaf and a rigid block pasted on the floor or wall, the elastic block is made of silicone, a suction hole is provided on the elastic block, and a top block is provided on the rigid block. During the door opening process, the top block can be inserted into the suction hole, and the suction hole wraps the top block tightly by its own deformation, so that the elastic block and the rigid block are combined. Although the sound produced by the collision when the rigid block is combined with the elastic block made of silicone is very small, and it has a good silent effect, the silicone material of this combined silent access control is relatively soft and the clamping force is small, resulting in a small bonding force between the elastic block and the rigid block, and the door leaf is likely to be closed by strong wind.

[0003] In order to solve the problem of insufficient adsorption and bonding force and easy loosening of the suction hole type door stopper, people invented the claw type door stopper. For example, the Chinese invention patent with patent number 201711067302.0 discloses a fastening door stopper, which includes a fastening claw, a fastening claw base, an embedded part and an embedded part base. The fastening claw is fixedly connected to the fastening claw base, the embedded part is fixedly connected to the embedded part base, the front end of the embedded part is provided with an embedded part adsorption layer, the fastening claw is consistent with the embedded part, the fastening claw base is provided with a fixed base adsorption surface, and the embedded part adsorption layer is adsorbed with the fixed base adsorption surface. The fastening claw is used to clamp the embedded part, and its clamping force is better than the elastic block of silicone material mentioned above, but the end of the arc-shaped fixing plate constituting the fastening claw is prone to elastic swing, which may make the combination of the embedded part and the fastening claw unstable. In order to further improve the combination stability of the door stopper, the invention uses the adsorption layer and the fixed base adsorption surface to increase its adsorption capacity. In essence, the adsorption effect is further increased by the mutual adsorption force between the magnet and the iron block, but a large noise is generated when the magnet and the iron block collide. Therefore, it is expected to design and invent a door stopper that is both silent and has a good clamping effect. Summary of the invention

[0004] In view of the above technical problems, the present invention proposes a clamping door suction pair, including a suction seat and a suction rod, the suction rod is provided with a suction rod head for inserting into the suction seat, the suction seat is provided with an elastic clamping arm for clamping the suction rod head, the inner side edge of the elastic clamping arm is constructed with a clamping cavity for receiving the suction rod head, the clamping cavity has a clamping cavity entrance facing outward and enabling the suction rod head to enter the clamping cavity; the front end portion of the elastic clamping arm is an elastic free end, and the front end portion of the elastic clamping arm protrudes toward the center of the clamping cavity. The suction seat further comprises a limiting body arranged on the periphery of the elastic clamping arm, and the limiting body does not hinder the suction rod head from being inserted into the clamping cavity from the entrance of the clamping cavity; when the suction rod head is inserted into the suction seat, at least when the maximum outer diameter of the suction rod head contacts the minimum radial dimension of the clamping cavity space, the elastic clamping arm can abut against the limiting body so that the limiting body provides a reverse supporting force for it.

[0005] Among them, the elastic clamping arm refers to a component arranged in the suction seat for clamping the suction rod head. The elastic clamping arm can generate a clamping force on the suction rod head through elastic deformation, and the elastic clamping arm can also serve as a force transmission medium to transmit other forces acting on the elastic clamping arm to the suction rod head.

[0006] Among them, the clamping cavity refers to the space used to accommodate the suction rod head. The construction form of the clamping cavity wall is diverse. It can be entirely constructed by the inner side edge of the elastic clamping arm, or it can be constructed jointly by the inner side edge of the elastic clamping arm and the fixed side edges of other walls.

[0007] Among them, the limiting body refers to a component arranged on the periphery of the elastic clamping arm for providing a reverse supporting force to the elastic clamping arm, and the reverse supporting force of the limiting body can be transmitted to the suction rod head through the elastic clamping arm; the setting form of the limiting body is various. In one embodiment, when the limiting body is the annular silicone part mentioned below, the limiting body can be sleeved on the outside of the elastic clamping arm, and the limiting body can be elastically deformed together with the elastic clamping arm to provide a reverse supporting force to the elastic clamping arm; in another embodiment, when the limiting body is the annular rigid part mentioned below, the limiting body is arranged on the outside of the elastic clamping arm, and the annular rigid part can provide abutment to the elastic clamping arm to provide a reverse supporting force to the elastic clamping arm.

[0008] Among them, the limiting body does not hinder the suction rod head from being inserted into the clamping cavity from the entrance of the clamping cavity, which means that the limiting body is arranged on the periphery of the elastic clamping arm. If part of the wall of the limiting body extends beyond the top of the front end of the elastic clamping arm to the entrance position of the clamping cavity, space is reserved for the suction rod head to enter the entrance of the clamping cavity, thereby realizing a structure that does not hinder the suction rod head from being inserted into the clamping cavity from the entrance of the clamping cavity.

[0009] According to the above technical scheme, compared with the prior art, the beneficial technical effects of the present invention are: First, the elastic clamping arm uses a clamping method to fix the suction rod head, and there is no need to use magnets and iron blocks to increase its adsorption capacity, and it has a good silent effect of preventing magnetic suction impact; Second, the limiting body can provide a reverse supporting force to the elastic clamping arm, and the limiting body can provide a reverse supporting force to the elastic clamping arm by abutting against the front end portion, waist and other suitable positions of the elastic clamping arm. When the suction rod head is inserted into the suction seat, at least when the maximum outer diameter of the suction rod head contacts the minimum radial dimension of the clamping cavity space, the elastic clamping arm can abut against the limiting body so that the limiting body provides a reverse supporting force for it, so that the clamping force of the elastic clamping arm on the suction rod head includes the clamping force generated by the original elastic deformation and the reverse supporting force provided by the limiting body, thereby improving the clamping ability of the elastic clamping arm on the suction rod head, so that the suction rod head is not easy to escape from the clamping cavity.

[0010] There are various ways to actually set the position limiter. In one embodiment, the position limiter is an annular silicone member, and the position limiter is combined with the outer side of the elastic clamping arm. The annular silicone member is a component that can be elastically deformed and can provide a reverse support force for the elastic clamping arm. During the insertion of the suction rod head into the suction seat, the suction rod head must provide a sufficiently large force to simultaneously overcome the elastic deformation force of the elastic clamping arm and the reverse support force generated by the elastic deformation of the annular silicone member in order to push the elastic clamping arm to swing open. Similarly, when the suction rod head is to be pulled out of the clamping cavity, it will be subject to the joint clamping force of the elastic clamping arm and the annular silicone member, which effectively improves the clamping ability of the elastic clamping arm to the suction rod head. In this scheme, although the annular silicone member is combined with the outer side of the elastic clamping arm, it will not close the entrance of the clamping cavity. Instead, it has a structure that allows the suction rod head to be inserted from the entrance of the clamping cavity into the clamping cavity. In another embodiment, the limiting body is an annular rigid member, and the top of the limiting body has a horizontal wall body and a vertical wall body extending inward from the horizontal wall body, the vertical wall body is located on the outside of the elastic clamping arm, and the horizontal wall body is located above the front end of the elastic clamping arm, and the horizontal wall body does not hinder the suction rod head from being inserted into the clamping cavity from the entrance of the clamping cavity. In one of the embodiments, the horizontal wall body is arranged in a ring and is provided with a through hole for allowing the suction rod head to enter and exit, and the through hole is connected to the entrance of the clamping cavity; in this way, the top end of the elastic clamping arm can be stored thereunder by the horizontal wall body arranged above the front end portion of the elastic clamping arm, thereby preventing fingers from accidentally touching the top end of the elastic clamping arm, thereby improving the safety of use of the elastic clamping arm; secondly, the through hole allows the suction rod head to enter the entrance of the clamping cavity, so that the through hole becomes a structure that prevents the limit body from hindering the suction rod head from being inserted into the clamping cavity from the entrance of the clamping cavity; in addition, the horizontal wall body or the vertical wall body can also be used to provide reverse support force for the elastic clamping arm, so that different annular rigid parts can be matched according to the actual use requirements of different occasions to achieve different clamping forces for the suction rod head.

[0011] In order to facilitate the installation of the elastic clamping arm and the limiting body, a further technical solution may be that the suction seat also includes a base, and the tail end of the elastic clamping arm and the limiting body are both connected to the base. In this way, the base can serve as an installation base for the elastic clamping arm and the limiting body, and can also well ensure the positional relationship between the elastic clamping arm and the limiting body, so as to facilitate the adjustment of the distance between the limiting body and the elastic clamping arm.

[0012] In order to facilitate production and installation, a further technical solution may be that the elastic clamping arm is integrally formed with the base, and the limiter is detachably connected to the base. The integral formation of the elastic clamping arm and the base is conducive to improving the connection strength between the elastic clamping arm and the base, especially when there are multiple elastic clamping arms, which greatly reduces the difficulty of installing the elastic clamping arm; on the other hand, the detachable setting of the limiter is conducive to the replacement of the limiter to meet different actual use requirements.

[0013] In order to further improve the silent performance of the door suction, a base hole connected to the clamping cavity is provided on the base, and a soft rubber plug is also provided. The soft rubber plug is inserted into the clamping cavity and covers the base hole. The soft rubber plug is made of a soft rubber material with a certain elasticity, so that when the suction rod head is inserted into the clamping cavity, it first touches the soft rubber plug inserted into the clamping cavity, which can reduce the noise generated by the collision between the suction rod head and the rigid wall forming the clamping cavity, and also prolong the service life of the door suction pair.

[0014] In order to facilitate the installation of the suction seat, a further technical solution may be that an adhesive layer is provided on the outer surface of the base, so that the suction seat can be conveniently installed on the door leaf or the fixed wall through the adhesive layer.

[0015] The suction rod can be set in various forms. The suction rod includes a suction rod seat and a connecting rod for connecting the suction rod seat and the suction rod head. The connecting rod is a straight connecting rod or a curved connecting rod. Connecting rods of different shapes can be applied in different usage scenarios. In one embodiment, the suction seat is installed on the door leaf, and the suction rod is installed on the wall through the suction rod seat. The straight connecting rod is basically perpendicular to the door leaf. When the door leaf is opened, the suction rod head on the straight connecting rod can be inserted into the suction seat; in another embodiment, the suction seat is installed on the door leaf, and the suction rod is installed on the ground through the suction rod seat. A section of the rod body connecting the curved connecting rod and the suction rod head is basically perpendicular to the door leaf. When the door leaf is opened, the suction rod head on the curved connecting rod can be inserted into the suction seat. The curved connecting rod can also be used to conveniently control the opening angle of the door leaf according to the installation position of the suction rod.

[0016] Since the present invention has the above characteristics and advantages, it can be applied to a door stopper with a clamping structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the exploded structure of a clamping door stopper pair using the technical solution of the present invention;

[0018] Figure 21 is a schematic diagram of a cross-sectional structure of a first embodiment of a clamping type door stopper in a front view direction;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the second embodiment of the clamping type door stopper in the front view direction. DETAILED DESCRIPTION

[0020] The structure of the clamping door stopper pair using the technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] Generally, the door leaf is installed on a fixed wall so that it can be opened and closed, and the plane of the door leaf is basically perpendicular to the ground. Figure 1~Figure 3 As shown, the present invention proposes a clamping door suction pair, including a suction rod 1 and a suction seat 2 arranged in pairs, wherein the suction rod 1 is provided with a suction rod head 11 for inserting into the suction seat 2, and the suction seat 2 is provided with an elastic clamping arm 41 for clamping the suction rod head 11, wherein the elastic clamping arm 41 can be elastically deformed when squeezed, and the elastic clamping arm can provide a clamping force to the suction rod head 11. The inner side edge of the elastic clamping arm 41 is constructed with a clamping cavity 43 for receiving the suction rod head 11, and the clamping cavity 43 has a clamping cavity entrance 431 facing outward and enabling the suction rod head 11 to enter the clamping cavity 43; wherein the clamping cavity 43 refers to a space for receiving the suction rod head 11, and the wall body constituting the clamping cavity 43 is in various forms, and can be entirely constructed by the inner side edge of the elastic clamping arm 41, or can be constructed by the inner side edge of the elastic clamping arm 41 and the side edges of other fixed walls. The front end portion 411 of the elastic clamping arm 41 is an elastic free end, and the front end portion 411 is in an arc shape (also called an arch shape) protruding toward the center of the clamping cavity 43, and the arc shape enhances the elastic force and elastic service life of the front end portion 411. Secondly, in the free state, the minimum radial dimension of the clamping cavity 43 defined by the front end portion 411 is smaller than the maximum outer diameter of the suction rod head 11, so that the suction rod head 11 is not easy to slip out after being inserted into the clamping cavity 43, but can be easily slipped out by utilizing the arc structure of the front end portion 411.

[0022] The suction seat 2 also includes a limiting body (3a, 3b) arranged on the periphery of the elastic clamping arm 41 and a base 42 located below the limiting body (3a, 3b). From the appearance, the limiting body (3a, 3b) is the outer shell of the suction seat 2, and roughly covers the elastic clamping arm 41 and the base 42 as a whole. The limiting body (3a, 3b) does not hinder the suction rod head 11 from being inserted into the clamping cavity 43 from the entrance 431 of the clamping cavity; when the suction rod head 11 is inserted into the suction seat 2, at least when the maximum outer diameter of the suction rod head 11 contacts the minimum radial dimension of the clamping cavity 43, the elastic clamping arm 41 can abut against the limiting body (3a, 3b) so that the limiting body (3a, 3b) provides it with a reverse support force.

[0023] There are various ways to actually arrange the limiters (3a, 3b), which are described below using two specific embodiments:

[0024] The first embodiment, such as Figure 2 As shown, the limiting body is an annular silicone member 3a, and the limiting body 3a is combined with the outer side of the elastic clamping arm 41, wherein the annular silicone member 3a can be elastically deformed to always provide a reverse support force for the elastic clamping arm 41. In the process of the suction rod head 11 inserting into or leaving the suction seat 2, the suction rod head 11 must provide a sufficiently large force to simultaneously overcome the elastic deformation force of the elastic clamping arm 41 and the reverse support force generated by the elastic deformation of the annular silicone member 3a in order to push the elastic clamping arm 41 to swing open. In this way, by using the annular silicone member 3a, the clamping force of the elastic clamping arm 41 can be increased, effectively preventing the suction rod head 11 from accidentally falling out. In addition, in order not to hinder the suction rod head 11 from being inserted into the clamping cavity 43 from the clamping cavity entrance 431, the top end of the annular silicone member 3a is slightly higher than the front end of the elastic clamping arm 41, but the inner diameter of the opening 311a formed by the top end of the annular silicone member 3a is larger than the inner diameter of the clamping cavity entrance 431, and the opening 311a formed by the top end of the annular silicone member 3a is connected to the clamping cavity entrance 431, and the opening 311a forms a structure that allows the suction rod head 11 to enter the clamping cavity entrance 431. Similarly, even if the top end of the annular silicone member 3a slightly extends into the clamping cavity entrance 431, causing the inner diameter of the opening 311a to be smaller than the inner diameter of the clamping cavity entrance 431, it will not hinder the suction rod head 11 from extending into the clamping cavity entrance 431 and then continuing to be inserted into the clamping cavity 43.

[0025] The second embodiment, such as Figure 3As shown, the limiting body is an annular rigid member 3b, the top of the limiting body 3b has a horizontal wall body 31 and a vertical wall body 32 extending inward from the horizontal wall body 31, the vertical wall body 32 is located on the outside of the elastic clamping arm 41, the horizontal wall body 31 is located above the front end of the elastic clamping arm 41, and the horizontal wall body 31 does not hinder the suction rod head 11 from being inserted into the clamping cavity 43 from the entrance 431 of the clamping cavity. In this embodiment, the horizontal wall body 31 extends slightly into the clamping cavity entrance 431, and is provided with a through hole 311b for allowing the suction rod head 11 to enter and exit. The through hole 311b is connected to the clamping cavity entrance 431. Although the inner diameter of the through hole 311b is smaller than the inner diameter of the clamping cavity entrance 431, it is larger than the maximum outer diameter of the suction rod head 11, so that the through hole 311b becomes a structure that allows the limit body 3b to not hinder the suction rod head 11 from being inserted into the clamping cavity 43 from the clamping cavity entrance 431. As shown in the figure, the horizontal wall body 31 and the vertical wall body 32 jointly form a groove, and the top end of the top end of the elastic clamping arm 41 extends into the groove. In this way, the top end of the elastic clamping arm 41 can be stored thereunder by the horizontal wall body 31 arranged above the front end of the elastic clamping arm 41, so as to prevent the fingers from accidentally touching the top end of the elastic clamping arm 41, thereby improving the safety of use of the elastic clamping arm 41; secondly, the through hole 311b can allow the suction rod head 11 to enter the clamping cavity entrance 431, so that the through hole 311b becomes a structure that allows the limit body 3b to not hinder the suction rod head 11 from being inserted into the clamping cavity 43 from the clamping cavity entrance 431.

[0026] In addition, the horizontal wall 31 or the vertical wall 32 can also be used to provide a reverse supporting force for the elastic clamping arm.

[0027] Among them, Figure 3As shown, a vertical gap is reserved between the horizontal wall 31 and the top of the elastic clamping arm 41, and an appropriate horizontal gap is reserved between the vertical wall 32 and the top of the elastic clamping arm 41. The size of the horizontal gap is set to at least ensure that when the suction rod head 11 is inserted into the clamping cavity 43, when the elastic clamping arm 41 is squeezed by the suction rod head 11, the top of the elastic clamping arm 41 is offset toward the vertical wall 32 as a free end, but at least when the suction rod head 11 is inserted into the clamping cavity 43, the elastic clamping arm 41 is squeezed by the suction rod head 11. When the maximum outer diameter of the elastic clamping arm 43 contacts the minimum radial dimension of the clamping cavity 43, the top end of the elastic clamping arm 43 finally abuts against the vertical wall 32 and even the horizontal wall 31 at the same time (that is, the top end of the elastic clamping arm 43 moves to the angle of the groove formed by the horizontal wall 31 and the vertical wall 32), forcing the elastic clamping arm 43 to have the maximum deformation at this time, so that the vertical wall 32 of the limit body 3b provides reverse support force for the elastic clamping arm 43. The smaller the horizontal gap, the earlier the elastic clamping arm 43 is forced to start deformation.

[0028] Among them, as an equivalent implementation scheme, an appropriate vertical gap (not shown in the figure) is reserved between the horizontal wall 31 and the top of the elastic clamping arm 41. The size of the vertical gap is set to at least ensure that when the suction rod head 11 is inserted into the clamping cavity 43, the top of the elastic clamping arm 43 moves upward along the vertical wall 32, and when it contacts the minimum radial dimension of the clamping cavity 43 at least at the maximum outer diameter of the suction rod head 11, the top of the elastic clamping arm 43 finally abuts against the horizontal wall 31, forcing the elastic clamping arm 43 to have the maximum deformation at this time, so that the horizontal wall 31 of the limit body 3b provides reverse support force for the elastic clamping arm 43. The smaller the vertical gap, the earlier the time when the elastic clamping arm 43 is forced to start deformation.

[0029] Furthermore, by adjusting the distance between the horizontal wall 31 and / or the vertical wall 32 and the elastic clamping arm 41, the position at which the annular rigid member 3b abuts against the elastic clamping arm 41 can be adjusted, thereby affecting the clamping force generated by the elastic deformation of the elastic clamping arm 41. Utilizing this feature, the suction seat 2 can be equipped with different annular rigid members 3b according to the actual usage requirements of different occasions to achieve different clamping forces for the suction rod head 11.

[0030] In order to facilitate the installation of the elastic clamping arm 41 and the limiting body (3a, 3b), the suction seat 2 also includes a base 42, and the tail end of the elastic clamping arm 41 and the limiting body (3a, 3b) are both connected to the base 42. In this way, the base 42 serves as the installation base of the elastic clamping arm 41 and the limiting body (3a, 3b), which can well ensure the positional relationship between the elastic clamping arm 41 and the limiting body (3a, 3b), and is also convenient for adjusting the distance between the limiting body (3a, 3b) and the elastic clamping arm 41. To this end, the bottom end of the elastic clamping arm 41 is connected to the base 42 to form the non-free end of the elastic clamping arm 41, and the corresponding front end portion 411 of the elastic clamping arm 41 is the elastic free end.

[0031] The connection between the elastic clamping arm 41 and the base 42 is various. In a first embodiment, Figure 2 As shown, the elastic clamping arm 41 and the base 42 are separately arranged. In addition to being tightly connected to the base 42 through the limiting body (3a, 3b), the elastic clamping arm 41 can also be connected together by other connection methods such as screw fixing, buckling, welding, thread connection, etc. In the second embodiment, as Figure 3 As shown, the elastic clamping arm 41 is integrally formed with the base 42. The advantage of the elastic clamping arm 41 and the base 42 being integrally formed is that it not only improves the connection strength between the elastic clamping arm 41 and the base 42, but also reduces the difficulty of installing the elastic clamping arm 41 and the base 42.

[0032] Furthermore, the limiting body (3a, 3b) is detachably connected to the base 42, which is convenient for replacing the limiting body (3a, 3b) to meet different practical usage requirements. There are various ways to connect the limiting body (3a, 3b) to the base 42. Two common ways of connection are listed below. The first one is as follows: Figure 2 As shown, the limiter (3a, 3b) is provided with a screw column 33, and the base is provided with a base screw hole 421. When the limiter (3a, 3b) is connected to the base 42, the screw column 33 corresponds to the base screw hole 421, so that they are conveniently connected together by screws. Figure 3 As shown, the limiting body (3a, 3b) is provided with a recessed portion 34, and the base 42 is provided with a hooking portion 422. When the limiting body (3a, 3b) is connected to the base 42, the recessed portion 34 and the hooking portion 422 can be combined with each other.

[0033] In order to further improve the quiet performance of the door suction pair, a base 42 hole connected to the clamping cavity 43 is provided on the base 42, and a soft rubber plug 5 is also included. The soft rubber plug 5 is inserted into the clamping cavity 43 and covers the base 42 hole. The soft rubber plug 5 is made of a soft rubber material with a certain elasticity, so that when the suction rod head 11 is inserted into the clamping cavity 43, it first touches the soft rubber plug 5 inserted in the clamping cavity 43, which can reduce the noise generated by the collision between the suction rod head 11 and the rigid wall forming the clamping cavity 43.

[0034] The suction rod 1 can be arranged in various forms, such as Figure 2~Figure 3 As shown, the suction rod 1 includes a suction rod seat 12 and a connecting rod (13a, 13b) for connecting the suction rod seat 12 and the suction rod head 11, and the connecting rod (13a, 13b) is a straight connecting rod 13a or a curved connecting rod 13b. The connecting rods (13a, 13b) of different shapes can be applied in different usage scenarios. In one embodiment, the suction seat 2 is installed on the door leaf, and the suction rod 1 is installed on a wall substantially parallel to the door leaf through the suction rod seat 12. The straight connecting rod 13a is substantially perpendicular to the wall. When the door leaf is opened, the suction rod head 11 on the straight connecting rod 13a can be inserted into the suction seat 2 to fix the door leaf. In another embodiment, the suction seat 2 is installed on the door leaf, the suction rod 1 is installed on the ground substantially perpendicular to the door leaf through the suction rod seat 12, and a section of the rod body connected to the suction rod head 11 of the curved connecting rod 13b is substantially parallel to the ground, and when the door leaf is opened, the suction rod head 11 on the curved connecting rod 13b can be inserted into the suction seat 2 to fix the door leaf. Among them, the position of the suction rod 1 using the curved connecting rod 13b installed on the ground is flexible and diverse, so that the angle at which the door leaf is fixed after opening can be controlled according to the installation position of the suction rod 1.

[0035] In order to facilitate the installation of the suction base 2, a further technical solution may be that an adhesive layer 6 is provided on the outer surface of the base 42. In this way, the suction base 2 is conveniently connected to the door leaf or the fixed wall through the adhesive layer 6. Similarly, the bottom of the suction rod base 12 can be provided with screw holes or a bottom adhesive layer 7 so that the suction rod 1 can be installed in a flexible and diverse manner.

Claims

1. A clamping door suction pair, comprising a suction seat and a suction rod, wherein the suction rod is provided with a suction rod head for inserting into the suction seat, and the suction seat is provided with an elastic clamping arm for clamping the suction rod head, and the inner side edge of the elastic clamping arm is constructed with a clamping cavity for receiving the suction rod head, and the clamping cavity has a clamping cavity entrance facing outward and enabling the suction rod head to enter the clamping cavity; characterized in that: The front end portion of the elastic clamping arm is an elastic free end, and the front end portion of the elastic clamping arm is in an arc shape protruding toward the center of the clamping cavity. In a free state, the minimum radial dimension of the clamping cavity space defined by the front end portion is smaller than the maximum outer diameter of the suction rod head; the suction seat also includes a limiting body arranged on the periphery of the elastic clamping arm, and the limiting body is the outer shell of the suction seat, which covers the elastic clamping arm as a whole, and the limiting body does not hinder the suction rod head from being inserted into the clamping cavity from the entrance of the clamping cavity; when the suction rod head is inserted into the suction seat, at least when the maximum outer diameter of the suction rod head contacts the minimum radial dimension of the clamping cavity space, the elastic clamping arm can abut against the limiting body so that the limiting body provides it with a reverse support force.

2. The clamping door stopper pair according to claim 1, characterized in that: The limiting body is an annular silicone member, and the limiting body is combined on the outer side of the elastic clamping arm.

3. The clamping door stopper pair according to claim 1 is characterized in that: The limiting body is an annular rigid part, and the top of the limiting body has a horizontal wall and a vertical wall extending inward from the horizontal wall. The vertical wall is located on the outside of the elastic clamping arm, and the horizontal wall is located above the front end of the elastic clamping arm. The horizontal wall does not hinder the suction rod head from being inserted into the clamping cavity from the entrance of the clamping cavity.

4. The clamping door stopper pair according to any one of claims 1 to 3, characterized in that: The suction seat also includes a base, and the tail end of the elastic clamping arm and the limiting body are both connected to the base.

5. The clamping door stopper pair according to claim 4 is characterized in that: The elastic clamping arm is integrally formed with the base, and the limiting body is detachably connected to the base.

6. The clamping door stopper pair according to claim 5, characterized in that: The base is provided with a base hole communicating with the clamping cavity, and also includes a soft rubber plug, which is inserted into the clamping cavity and covers the base hole.

7. The clamping door stopper pair according to claim 4, characterized in that: An adhesive layer is arranged on the outer surface of the base.

8. The clamping door stopper pair according to any one of claims 1 to 3, characterized in that: The suction rod comprises a suction rod seat and a connecting rod for connecting the suction rod seat and the suction rod head, and the connecting rod is a straight connecting rod or a curved connecting rod.

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