Horizontal limit door collision

Abstract

The horizontal limit door collision pair includes a limit seat and a collision head for contacting the limit seat in the horizontal direction; it is characterized in that the limit seat includes a seat body, a collision base, a first return spring, a buffer base and a second return spring, and the collision head includes a collision arm for contacting the collision base and the buffer base; because the limit seat includes a collision base that can move in the up and down directions and a first return spring that can drive the collision base to return upward, it also includes a buffer base that can move in the left and right directions and a second return spring that can drive the collision base to return to the right, so the collision base and the buffer base can be used to position the collision arm so that the collision arm cannot move away at will, and the buffer base and its second return spring can be used to buffer, alleviate and release the kinetic energy of opening the door, thereby not only simplifying the product structure but also reducing the vibration and noise of the product door opening collision.

Description

Technical Field

[0001] The present invention relates to the field of door collision technology, and in particular to a horizontally limited door collision pair. The door collision pair comprises a limit seat and a collision head for horizontally contacting the limit seat, and when the collision head touches the limit seat in the horizontal direction, it can be positioned on the limit seat. In actual use, the limit seat is generally installed on a fixed building such as the ground or wall, and the collision head is generally installed on the inner side of a door leaf. Background Art

[0002] In order to prevent the door from being blown by the wind or being touched randomly when it is open, a door stopper is generally arranged at the end of the door's motion trajectory, and the door stopper acts as a limiter on the door. For example, the Chinese utility model patent with publication number CN207092773U discloses a door stopper structure, including a positioning member and a buffer assembly arranged relatively to each other, the positioning member having a clamping joint; the buffer assembly includes a mounting seat and a reset elastic member, the mounting seat is provided with a slideway, the slideway is provided with a trigger slider that can move back and forth, and the trigger slider has a clamping portion connected to the clamping joint; one end of the slideway facing the positioning member is a clamping end, and the other end is a suction end, and the clamping joint can be clamped or disengaged with the clamping portion of the trigger slider at the clamping end of the slideway; a rotation damping structure that can generate resistance when the trigger slider moves from the clamping end of the slideway to the suction end is provided between the mounting seat and the trigger slider; the reset elastic member has an elastic reset force that pulls the trigger slider from the clamping end of the slideway to the suction end.

[0003] The above-mentioned Chinese utility model patent with publication number CN207092773U mainly has the following problems: first, it realizes the buffering of the clamping joint by means of components such as a mounting seat, a reset elastic member, a trigger slider and a rotation damping structure, which has a complex structure, high installation requirements and is inconvenient. In addition, the buffer component with a complex structure needs to occupy a large volume; second, the buffer component limits the clamping joint by means of a clamping portion and a connecting portion provided on the trigger slider, and the spacing between the clamping portion and the connecting portion is fixed, so when the clamping joint is located between the clamping portion and the connecting portion, there will be a large shaking virtual position; third, a cover plate is provided on the left side of the trigger slider, which can play a certain dust-proof role, but the cover plate is always located on the side of the trigger slider and cannot play a dust-proof role for this part of the trigger slider, especially cannot play a dust-proof role for the clamping groove in the trigger slider used to position the clamping portion. Summary of the invention

[0004] In view of this, in order to overcome the above-mentioned technical problems, the present invention provides a horizontal limit door collision pair with a simple structure and stable positioning, comprising a limit seat and a collision head for touching the limit seat in a horizontal direction; characterized in that the limit seat comprises a seat body, a collision base, a first return spring, a buffer base and a second return spring, and the collision head comprises a collision arm for touching the collision base and the buffer base; the collision base can be movably arranged on the seat body in the up and down directions, the first return spring is arranged on the seat body for driving the collision base to reset upwards, and the buffer base can be movably arranged on the seat body in the left and right directions , the second return spring is arranged on the seat body to drive the buffer base to return to the right; wherein, the collision base is used to be pushed downward by the collision arm when the collision arm moves over its head in the horizontal direction so as to avoid the collision arm, and the buffer base is used to be pushed to the left by the collision arm when the collision arm moves in the horizontal direction to the left and provide reverse buffering to the collision arm during the process of being pushed to the left, and the buffer base is also used to cooperate with the collision base to limit the collision arm from moving at will after at least part of the collision arm moves over the top of the collision base in the horizontal direction.

[0005] Among them, the horizontal direction, the up and down direction, the left and right directions, and the left and right sides mentioned below are relative directions. In specific applications, these directions will change according to the installation scenario of the horizontal limit door.

[0006] Among them, the bumper used to touch the limit seat in the horizontal direction is defined as the bumper and the limit seat being able to touch each other. In a specific application, the limit seat may be installed on the ground or the wall of a building, and the bumper is installed on a door. In this case, the limit seat is fixed, and the bumper moves with the door, so that they can move with each other and touch each other. The following is mainly described in this way; the bumper may also be installed on the ground or the wall of a building, and the limit seat is installed on the door. In this case, the bumper is fixed, and the limit seat moves with the door, so that they can move with each other and touch each other.

[0007] The collision head includes a collision arm for contacting the collision base and the buffer base, which mainly defines the relative position relationship between the collision base and the buffer base, as well as the relative position relationship between the collision base, the buffer base and the collision arm in actual use, that is, if the limit seat and the collision head are respectively installed on the door leaf or the ground and start to be used, the collision base and the buffer base are both located on the motion trajectory of the collision arm moving in the horizontal direction so as to be able to contact the collision arm. As for the specific relative position relationship between the collision base and the buffer base, it can be flexibly arranged under the condition that the above functions can be achieved, for example, the buffer base can be set on the side of the collision base, either the structural relationship between the buffer base and the collision base is left-right split, and the buffer base is always on the left side of the collision base; or the structural relationship between the buffer base and the collision base is left-right split and up-down split, and the right end of the buffer base can extend to the top of the collision base or even cross the collision base in a free state. However, no matter how their relative positions are arranged, the main thing is to ensure that the collision arm can touch the collision base during horizontal movement and then lean against the buffer base after passing over the collision base, so that the collision arm is confined between the collision base and the buffer base.

[0008] Wherein, under the driving action of the first return spring, the collision base is elastically supported in a free state of free movement up and down. When the collision base is squeezed downward by an external force such as the collision of the collision arm, it can move downward to allow the collision arm to pass over it, and after the collision arm passes over, it can move upward under the driving action of the first return spring and return to a free state. Wherein, in a specific implementation scheme, the collision base can be set at the right end of the seat body, so that the collision arm touches the collision base as soon as possible when moving horizontally from right to left, thereby reducing the length of the limit seat in the left and right directions.

[0009] Among them, under the driving action of the second return spring, the buffer base is elastically pushed to be in a free state of left and right movement. When the buffer base is pushed to the left by an external force such as the collision of the bumper arm, it can move to the left and allow the bumper arm to finally stop at its right side position. After the bumper arm moves away to the right, it can move to the right under the driving action of the second return spring and return to a free state.

[0010] The collision base is used to be pushed downward by the collision arm when the collision arm moves horizontally over its head, thereby avoiding the collision arm; the buffer base is used to be pushed to the left by the collision arm when the collision arm moves horizontally to the left, and provide reverse buffering to the collision arm during the process of being pushed to the left; the buffer base is also used to cooperate with the collision base to limit the collision arm from moving arbitrarily after at least part of the collision arm moves horizontally over the top of the collision base. This feature defines that the collision arm can touch and push the collision base to move downward during the horizontal movement, that is, the collision base is pushed downward to avoid the collision arm; secondly, it defines that the collision arm can contact and push the buffer base to move horizontally during the horizontal movement over the top of the collision base, and the buffer base can in turn provide reverse buffering force to the collision arm during this process, thereby greatly alleviating and releasing the kinetic energy of opening the door. In addition, this feature also defines the relative positional relationship between the buffer matrix and the collision matrix, that is, the collision arm can be defined between the buffer matrix and the collision matrix.

[0011] Among them, according to the above technical solution, the bumper arm is mainly used to touch the limit seat and be limited by the limit seat. In practical applications, the bumper arm can be a whole that passes over the collision base and is limited between the buffer base and the collision base, or a part of the bumper arm can pass over the collision base. For example, an avoidance groove that can at least adapt to the top end of the collision base can be provided on the lower end surface of the bumper arm. When the bumper arm passes over the collision base and the top end of the collision base extends into the avoidance groove, it can cooperate with the buffer base to limit the bumper arm from moving left and right at will.

[0012] Among them, the collision arm can touch the collision base first and then touch the buffer base. For example, when the buffer base is always located on the left side of the collision base, the collision arm will contact the buffer base again only after it passes over the collision base; the collision arm can also touch the buffer base first. At this time, the collision arm passes over the collision base in the process of pushing the buffer base to the left, for example, as described below, when the buffer base is in a free state, its end can extend to the top of the collision base.

[0013] According to the above technical solution, compared with the prior art, the main beneficial effects of the present invention are:

[0014] 1. Since the limit seat includes a collision base that can move in the up-down direction and a first return spring that can drive the collision base to return upward, and also includes a buffer base that can move in the left-right direction and a second return spring that can drive the collision base to return to the right, the collision base and the buffer base can be used to position the collision arm so that the collision arm cannot move away at will, and the buffer base and its second return spring can be used to buffer, mitigate and release the kinetic energy of opening the door, thereby not only simplifying the product structure but also reducing the vibration and noise of the product door opening collision.

[0015] 2. Since the collision arm is defined between the collision base and the buffer base and is defined by the thrust of the second return spring, the collision arm can be defined stably and the virtual position shaking of the collision arm between the collision base and the buffer base can be reduced.

[0016] 3. When the collision head is away from the limit seat, the buffer base moves to the right and resets under the action of the second reset spring, which can cover the left side space of the collision base and thus prevent dust from entering the space. The buffer base can even cover the top of the collision base according to the specific structure to achieve a better dust-proof effect. In addition, compared with the prior art that connects a cover plate with a dust-proof effect to the left side of the trigger slider, the overall length of the limit seat of the present invention is shortened, which can at least save the space of the connection part of the trigger slider and reduce the volume.

[0017] In the above solution, the buffer matrix can be a magnetic body or a non-magnetic body.

[0018] The position of the buffer matrix in the free state of the present invention can be the following three schemes:

[0019] In a first solution, when the buffer matrix is ​​in a free state, the right end portion thereof does not extend to contact the collision matrix.

[0020] In the second solution, when the buffer matrix is ​​in a free state, its right end can extend to contact the collision matrix. In this way, when the buffer matrix is ​​in a free state, it can cover the area on the left side of the collision matrix, which can play a better dust-proof role, and the collision matrix can also limit the rightward travel of the buffer matrix.

[0021] In the third solution, when the buffer base is in a free state, its right end can extend above the collision base. In this way, when the collision arm is away from the limit seat, the buffer base can play a better dustproof role, and the collision arm can touch the buffer base earlier.

[0022] When the buffer base is in a free state, it means that the buffer base is not subject to external forces, such as the impact arm, and the buffer base can move to the rightmost position under the drive of the second return spring. The buffer base can limit the rightward movement stroke through the limit structure described below to limit the position of the buffer base in the free state, or directly limit the position of the buffer base in the free state through the limit position of the second return spring in the free state.

[0023] A further technical solution may be that the limit seat also includes a limit structure, and the limit structure is used to limit the travel of the buffer base to the left or right. The present invention limits the movement range of the buffer base through the limit structure, which can improve the stability of the movement of the buffer base. Among them, limiting the travel of the buffer base to the left can also limit the travel of the collision arm located on the right side of the buffer base to the left, which can limit the range of movement of the collision arm between the buffer base and the collision base, and improve the stability of the collision arm when it is limited by the limit seat.

[0024] Among them, the limiting structure can achieve the limiting effect through the cooperation between the limiting arm described below and the first upright arm and the second upright arm, and can also achieve the limiting effect by arranging limiting protrusions or limiting screws on the base respectively located at the two ends of the moving range of the buffer base, and can also achieve the limiting effect through mutually positioned protrusions and grooves.

[0025] As a limiting structure for limiting the movement of the buffer base to the right, a further technical solution may be that the limiting structure includes a limiting arm arranged on the seat body, and also includes a first upright arm arranged at the left end of the buffer base, and the first upright arm is located on the left side of the limiting arm. When the buffer base moves to the right, the limiting arm is used to limit the movement of the first upright arm to the right, thereby limiting the movement of the buffer base to the right.

[0026] A further technical solution may be that the second return spring is horizontally arranged on the left side of the first vertical arm and is used to apply a rightward driving force to the first vertical arm. The present invention cleverly uses the first vertical arm that plays a limiting role as a connecting member between the buffer base and the second return spring, which can simplify the structure of the buffer base and reduce the overall volume of the limit seat.

[0027] As a limiting structure for limiting the movement range of the buffer base to the left, a further technical solution may be that the limiting structure includes a limiting arm arranged on the seat body, and also includes a second upright arm arranged at the right end of the buffer base, and the second upright arm is located on the right side of the limiting arm. When the buffer base moves to the left, the limiting arm is used to limit the movement range of the second upright arm to the left, thereby limiting the movement range of the buffer base to the left.

[0028] In order to facilitate the installation of the buffer base, a further technical solution may be that the base includes a main seat and a cover shell covering the main seat, the main seat is provided with a first limit arm extending upward, the cover shell is provided with a second limit arm extending downward, the first limit arm and the second limit arm together constitute the limit arm, and the buffer base is arranged between the first limit arm and the second limit arm. In this way, when installing, the buffer base is first placed above the first limit arm, and then the cover shell is covered, so that the buffer base can be limited between the first limit arm and the second limit arm. In addition, in order to facilitate the installation of other structures such as the buffer base, the main seat generally needs to be arranged with some openings, and the cover shell can not only limit the buffer base, but also play a role in dustproof and aesthetics for the main seat. In addition, the present invention cleverly uses the first limit arm and the second limit arm to constitute a limit arm for limiting the movement of the buffer base, thereby simplifying the structure and facilitating the installation of the buffer base.

[0029] The first limiting arm and the second limiting arm may be on the same vertical plane, or may be staggered at a certain distance to the left and right.

[0030] A further technical solution may be that an open limiting cavity is provided on the right side of the seat body, the collision base is arranged in the limiting cavity, and the cavity wall of the limiting cavity does not prevent the lower end of the collision arm from entering the limiting cavity in the horizontal direction and thus touching the collision base.

[0031] The cavity wall of the limiting cavity does not prevent the lower end of the collision arm from entering the limiting cavity in the horizontal direction and thus touching the collision base, and the limiting cavity is defined as being provided with a channel for the collision arm to enter the limiting cavity in the horizontal direction. For example, the upper and right parts of the limiting cavity are both open structures, and the collision arm can enter the limiting cavity from the right opening of the limiting cavity when moving horizontally from right to left. The present invention accommodates the collision base in the limiting cavity, which can provide certain protection for the collision base and improve the overall aesthetics.

[0032] A further technical solution may also be that the bumper also includes a bumper seat and a mounting arm, the bumper seat is used to be connected to the door leaf, the bumper arm is connected to the mounting arm, and the mounting arm is connected to the bumper seat; wherein, the bumper seat is provided with a third return spring and a guide rod arranged in the up-down direction, the bumper seat is provided with an extension arm extending in the horizontal direction, the extension arm is provided with a screw through hole, the guide rod includes a threaded rod body and a rod head, the outer diameter of the rod head is larger than the inner diameter of the screw through hole; the mounting arm is provided with a threaded hole adapted to the threaded rod body, the threaded rod body of the guide rod is inserted from top to bottom through the screw through hole and the third return spring and then screwed into the threaded hole of the mounting arm, the third return spring is sleeved on the guide rod and is located between the extension arm and the mounting arm, so that the mounting arm can move up and down relative to the bumper seat when impacted by external force, and the upper and lower positions of the mounting arm relative to the bumper seat can be adjusted by rotating the guide rod. When the door leaf sags after being used for a long time, the bump arm will also be lowered, thereby affecting the collision between the bump arm and the limit seat. The present invention can adjust the installation arm to move up and down relative to the bump seat by rotating the guide rod to compensate for the offset position of the bump arm. Moreover, when adjusting the height of the bump arm, there is no need to remove the bump seat, the bump arm and other components. It is only necessary to make the guide rod in a rotatable state, which is extremely convenient to adjust.

[0033] In order to improve the stability of the movement of the buffer base, a further technical solution may be that a pair of horizontal guide grooves are provided on the seat body, and buffer guide parts are provided at the front and rear ends of the buffer base, and the buffer guide parts are arranged in the horizontal guide grooves and can translate along the horizontal guide grooves. In this way, the horizontal guide grooves can guide the left and right translation of the buffer base, which can improve the stability of the movement. It should be noted that the buffer base of the present invention can also move left and right along an arc path.

[0034] In order to improve the stability of the movement of the collision base, a further technical solution may be that a pair of vertical guide grooves are provided on the seat body, and collision guide parts are provided at the front and rear ends of the collision base. The collision guide parts are arranged in the vertical guide grooves and can be lifted and lowered along the vertical guide grooves.

[0035] Since the present invention has the above characteristics and advantages, it can be used in horizontal limit door collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the horizontal limit door of the present invention when it hits the combined door;

[0037] Figure 2It is an exploded schematic diagram of the horizontal limit door collision of the present invention;

[0038] Figure 3 It is a cross-sectional view of the overall structure of the horizontal limit door of the present invention when the collision head is away from the limit seat;

[0039] Figure 4 It is a cross-sectional view of the overall structure when the collision head of the horizontal limit door collision pair of the present invention is located between the collision matrix and the buffer matrix.

[0040] Figure 5 It is a schematic diagram of the structure of the bumper that facilitates adjusting the height of the bumper arm;

[0041] Figure 6 yes Figure 5 Schematic diagram of the decomposition of

[0042] Figure 7 yes Figure 5 The schematic diagram of the structure after the bumper is configured with a cover body is shown. Specific embodiments

[0043] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, and back that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0044] The structure of the horizontal limit door collision using the technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0045] like Figure 1 As shown, the present invention discloses a horizontal limit door collision, including a limit seat 100 and a bumper 2 for touching the limit seat 100 in the horizontal direction. The bumper 2 is installed on the door 3, the limit seat 100 is installed on the ground of the building and is located on the left side of the bumper 2, and the bumper 2 moves to the left with the door 3 and can touch the limit seat 100. In other embodiments, the bumper 2 is installed on the door 3, and the limit seat 100 is installed on the wall of the building; it can also be that the bumper 2 is installed on the ground or wall of the building, and the limit seat 100 is installed on the door 3.

[0046] The limiting seat 100 includes a seat body 1, a collision base 4, a first return spring 5, a buffer base 6 and a second return spring 7. The collision base 4, the first return spring 5, the buffer base 6 and the second return spring 7 are respectively installed on the seat body 1.

[0047] like Figure 2 and Figure 3As shown, the collision base 4 is movably arranged at the right end of the seat body 1 in the up-down direction, and the first return spring 5 is arranged on the seat body 1 to drive the collision base 4 to return upward. Specifically, the right end of the seat body 1 is provided with an open limit cavity 10, and the collision base 4 is movably arranged in the up-down direction in the limit cavity 10, and the first return spring 5 is also arranged in the limit cavity 10 and is between the collision base 4 and the bottom wall of the limit cavity 10. Under the driving action of the first return spring 5, the collision base 4 is elastically supported in a free state of up-down movement. When the collision base 4 is pushed downward by an external force such as the collision of the collision arm 21, it can move downward to avoid the collision arm 21 and let it pass over it, and after the collision arm 21 passes over, it can move upward under the driving action of the first return spring 5 and return to a free state. The collision base 4 is arranged at the right end of the seat 1 to facilitate the collision arm 21 to contact the collision base 4 as soon as possible when it moves horizontally from right to left, thereby reducing the length of the limit seat 100 in the left and right directions. Of course, the collision base 4 can also be arranged at a position close to the middle part of the seat 1. In order to achieve the above-mentioned collision and pushing work, as shown in the figure, the lower end of the collision arm 21 contacts the working surface 24 and the top end of the collision base 4 contacts the working surface 42, which are both arc-shaped.

[0048] The first return spring 5 is a compressed third return spring, which is arranged vertically below the collision base 4 and clamped between the collision base 4 and the base 1b described below, so that the first return spring 5 always applies an upward pushing force to the collision base 4. In other embodiments, the first return spring 5 can also be another component that can realize the upward return of the collision base 4.

[0049] In order to improve the stability of the upward and downward movement of the collision base 4, a pair of vertical guide grooves 11 are provided on the base 1, and collision guide parts 41 are provided at the front and rear ends of the collision base 4. The collision guide parts 41 are arranged in the vertical guide grooves 11 and can be lifted and lowered along the vertical guide grooves 11. The upper end of the vertical guide groove 11 does not extend out of the base 1, but forms a limiting surface for limiting the collision guide part 41. Of course, the collision base 4 can also be limited at the upper end by other structures such as a protrusion provided on the base 1.

[0050] like Figure 2 and Figure 3As shown, the buffer base 6 is arranged on the seat 1, and the buffer base 6 can be movably arranged on the side of the collision base 4 in the left and right directions. The second return spring 7 is arranged on the seat 1 to drive the buffer base 6 to return to the right. When the collision arm 21 does not collide with the buffer base 6, the buffer base 6 is in a free state capable of moving left and right under the driving action of the second return spring 7. When the buffer base 6 is pushed to the left by an external force such as the collision arm 21, it can move horizontally to the left. The collision arm 21 finally stops at its right side position, and can move to the right and return to the free state under the driving action of the second return spring 7 after the collision arm 21 moves away to the right. It can be seen that the collision arm 21 will not directly push the buffer base 6 to rigidly collide with the seat 1, but has a certain buffering effect on the collision arm 21 under the elastic force of the second return spring 7. This buffer structure is simple, easy to install, and occupies a small volume. In addition, since the collision arm 21 is defined between the collision base 4 and the buffer base 6 and defined by the thrust of the second return spring 7 , the collision arm 21 can be defined stably and virtual position shaking of the collision arm 21 can be reduced.

[0051] In order to improve the stability of the movement of the buffer base 6, a pair of horizontal guide grooves 12 are provided on the seat body 1, and buffer guide parts 63 are provided at the front and rear ends of the buffer base 6. The buffer guide parts 63 are arranged in the horizontal guide grooves 12 and can move horizontally along the horizontal guide grooves 12. In this way, the horizontal guide grooves 12 can guide the buffer base 6 to move left and right, thereby improving the stability of movement. In other embodiments, the guide grooves for guiding the buffer base 6 can also be arc-shaped, and the buffer base 6 moves left and right along this arc-shaped path.

[0052] like Figure 1 As shown, the bumper 2 is in the shape of a crank arm and includes a bumper arm 21 for contacting the collision base 4 and the buffer base 6 and a mounting arm 22 arranged above the bumper arm 21. The mounting arm 22 is provided with a mounting through hole 23. The mounting arm 22 is passed through the mounting through hole 23 by a screw (not shown in the figure) and then locked on the door 3 to fix the bumper 2. When the bumper 2 is installed on the door 3, the mounting arm 22 contacts the surface of the door 3, and a collision space 30 is formed between the bumper arm 21 and the surface of the door 3, so that when the bumper arm 21 passes over the collision base 4, the collision base 4 will not be interfered by the door 3 and the bumper arm 21 does not need to extend downward out of the door 3.

[0053] The bumper arm 21 is mainly used to touch the limit seat 100 and be limited by the limit seat 100. In practical applications, the bumper arm 21 may be entirely over the collision base 4 and limited by the limit seat 100, such as the door bumper disclosed in this embodiment; or a part of the bumper arm 21 may be over the collision base 4 and limited by the limit seat 100, such as a relief groove (not shown) capable of accommodating the collision base 4 is provided on the lower end surface of the bumper arm 21, when the bumper arm 21 is located above the top end portion of the collision base 4 and the top end portion of the collision base 4 extends into the relief groove of the bumper arm 21, the bumper arm 21 may be limited between the collision base 4 and the buffer base 6.

[0054] When the bumper arm 21 moves toward the base body 1 in the horizontal direction, it not only touches the collision base 4 but also abuts against the right side of the buffer base 6 after passing over the collision base 4, so that the bumper arm 21 is confined between the collision base 4 and the buffer base 6. The bumper arm 21 can touch the collision base 4 and the buffer base 6 during the horizontal movement. The collision base 4 mainly plays a positioning role for the bumper arm 21, while the buffer base 6 mainly plays a buffering positioning role for the bumper arm 21 and cooperates with the collision base 4 to position the bumper arm 21.

[0055] During use of the door collision pair of the present invention, when the collision arm 21 moves to the left, squeezes downward and passes over the collision base 4 and then stops at the right side edge of the buffer base 6, the collision arm 21 is confined between the buffer base 6 and the collision base 4. When the door 3 is driven to the right to return to the closed position, the collision arm 21 also moves to the right, and the collision arm 21 again passes over the collision base 4 in the opposite direction and is able to leave the buffer base 6.

[0056] like Figure 4 As shown, when the buffer matrix 6 is in a free state, its right end can extend above the collision matrix 4. In this way, when the collision arm 21 is away from the base 1, the buffer matrix 6 can play a better dust-proof role for the left space of the collision matrix 4 (which is also the space below the buffer matrix 6). In addition, the collision arm 21 can touch the buffer matrix 6 earlier, so that the buffer distance can be increased without increasing the length of the base 1. Among them, the limit position of the right end of the buffer matrix 6 can be directly above the collision matrix 4 without crossing the collision matrix 4. Figure 4This is the solution shown, in which the collision arm 21 first touches the collision base 4 and then touches the buffer base 6; in other embodiments, the limit position of the right end of the buffer base 6 may also pass over the collision base 4 and reach the right side of the collision base 4. In this case, the collision arm 21 first touches the buffer base 6 and then touches the collision base 4.

[0057] In other embodiments, when the buffer base 6 is in a free state, its right end can extend to contact the collision base 4. In this way, when the buffer base 6 is in a free state, it can cover the area on the left side of the collision base 4, which can play a better dust-proof role, and the collision base 4 can also limit the rightward travel of the buffer base 6.

[0058] When the buffer base 6 is in a free state, it means that the buffer base 6 is not subjected to external forces, such as the impact arm 21, and the buffer base 6 moves to the rightmost position driven by the second return spring 7. Of course, when the buffer base 6 is in a free state, its end can also be located on the left side of the impact base 4 and not in contact with the impact base 4.

[0059] The relative position relationship between the collision base 4 and the buffer base 6 can include a left-right split structure, where the buffer base 6 is always on the left side of the collision base 4; or a left-right split and an up-down split structure, where the right end of the buffer base 6 can extend to the top of the collision base 4 or even over the collision base 4 in a free state. Regardless of how the relative positions between them are arranged, it is mainly necessary to ensure that the collision arm 21 can touch the collision base 4 during horizontal movement and then abut against the buffer base 6 after passing over the collision base 4, so that the collision arm 21 is limited between the collision base 4 and the buffer base 6.

[0060] As can be seen from the above, since the limit seat 100 includes a collision base 4 that can move in the up-down direction and a first return spring 5 that can drive the collision base 4 to return upward, it also includes a buffer base 6 that can move in the left-right direction and a second return spring 7 that can drive the collision base 4 to return to the right, positioning can be achieved with the help of the collision base 4 and the buffer base 6, and buffering can be achieved with the help of the buffer base 6, which not only simplifies the product structure but also reduces the vibration and noise of the product opening door 3 collision.

[0061] In order to facilitate the installation of the buffer base 6, the base 1 includes a main base part (1a, 1b) and a cover 1c covering the main base part (1a, 1b), the main base part (1a, 1b) is provided with a first limit arm 13 extending upward, the cover 1c is provided with a second limit arm 14 extending downward, the first limit arm 13 and the second limit arm 14 are located on the left side of the collision base 4, the first limit arm 13 and the second limit arm 14 together constitute the limit arm (13, 14), a gap is reserved between the first limit arm 13 and the second limit arm 14 in the up and down direction for the buffer base 6 to move through, and the buffer base 6 is arranged in the gap between the first limit arm 13 and the second limit arm 14. Wherein, the first limit arm 13 and the second limit arm 14 are located on the same vertical plane, and in other embodiments, they can also be staggered by a certain distance in the left and right directions.

[0062] During installation, the buffer base 6 is first placed above the first limiting arm 13, and then the cover shell 1c is closed, so that the buffer base 6 can be limited between the first limiting arm 13 and the second limiting arm 14. In addition, the main seat (1a, 1b) generally needs to be arranged with some openings to facilitate the installation of other structures such as the buffer base 6, and the cover shell 1c can not only limit the buffer base 6, but also play a role in dust prevention and aesthetics for the main seat (1a, 1b).

[0063] The main seat part (1a, 1b) includes a base 1b and a mounting seat 1a mounted on the base 1b, and the horizontal guide groove 12, the vertical guide groove 11 and the first limit arm 13 are all arranged on the mounting seat 1a. The left end of the horizontal guide groove 12 extends out of the mounting seat 1a, and the buffer guide part 63 of the buffer base 6 is inserted from the left end of the horizontal guide groove 12 to realize the positioning of the buffer base 6. The left end of the base 1b is provided with a vertical part 11b, and the second reset spring 7 is arranged between the vertical part 11b and the first vertical arm 61 of the buffer base 6, and the first reset spring 5 is arranged between the base 1b and the collision base 4.

[0064] The limit seat 100 also includes a limit structure, which is used to limit the stroke of the buffer base 6 moving to the left and to the right. The present invention limits the movement range of the buffer base 6 through the limit structure, which can improve the stability of the movement of the buffer base 6. Among them, limiting the stroke of the buffer base 6 moving to the left can also limit the stroke of the collision arm 21 located on the right side of the buffer base 6 moving to the left, so that the range of movement of the collision arm 21 between the buffer base 6 and the collision base 4 can be limited, and the stability of the collision arm 21 when it is limited by the limit seat 100 can be improved.

[0065] Among them, as an implementation structure for limiting the rightward movement of the buffer base 6, the limiting structure includes the limiting arm (13, 14), specifically the first limiting arm 13, and also includes a first upright arm 61 arranged at the left end of the buffer base 6, and the first upright arm 61 is located on the left side of the first limiting arm 13. When the buffer base 6 moves to the right, the first limiting arm 13 is used to limit the rightward movement of the first upright arm 61, thereby limiting the rightward movement of the buffer base 6.

[0066] Furthermore, the second return spring 7 is horizontally arranged on the left side of the first vertical arm 61 and is used to apply a rightward elastic force to the first vertical arm 61. The present invention cleverly uses the first vertical arm 61 with a limiting function as a connecting member between the buffer base 6 and the second return spring 7, which can simplify the structure of the buffer base 6 and reduce the overall volume of the limiting seat 100.

[0067] In addition, as an implementation structure for limiting the leftward movement stroke of the buffer base 6, the limiting structure includes the limiting arm (13, 14), specifically the second limiting arm 14, and also includes a second upright arm 62 arranged at the right end of the buffer base 6, and the second upright arm 62 is located on the right side of the second limiting arm 14. When the buffer base 6 moves to the left, the second limiting arm 14 is used to limit the leftward movement stroke of the second upright arm 62, thereby limiting the leftward movement stroke of the buffer base 6.

[0068] In this embodiment, the first vertical arm 61 extends downward and cooperates with the first limiting arm 13 located below the buffer base 6 to realize the limiting function. In this way, the space below the buffer base 6 can be fully utilized, and it is also convenient to design the cover shell 1c into a small and more beautiful arc or other shape. The second vertical arm 62 extends upward and cooperates with the second limiting arm 14 located above the buffer base 6 to realize the limiting function. In this way, the second vertical arm 62 can not only play a limiting role, but also serve as the part where the buffer base 6 collides with the collision arm 21. In addition, the second vertical arm 62 extending upward will not hinder the installation of the buffer base 6.

[0069] In other embodiments, the limiting arm (13, 14) may be an integrated upper limiting arm located above the buffer base 6, and the first vertical arm and the second vertical arm extending upward are respectively provided at the left and right ends of the buffer base 6; of course, the limiting arm (13, 14) may also be a lower limiting arm provided below the buffer base 6, and correspondingly, the first vertical arm and the second vertical arm both extend downward. Alternatively, the limiting structure may be a mutually positioned protrusion and groove structure, for example, the buffer base 6 may be provided with limiting grooves arranged along the left and right directions, and the limiting seat 100 may be provided with a limiting arm that penetrates into the limiting groove, and limiting is achieved by the limiting arm and the limiting groove, or the limiting groove and the limiting arm are arranged inverted. The limiting structure of the present invention may also be other structures that can achieve limiting the moving stroke of the buffer base 6, which are not listed here one by one.

[0070] It should be noted that an open limiting cavity 10 is provided on the right side of the seat body 1, and the cavity wall of the limiting cavity 10 does not hinder the lower end of the collision arm 21 from entering the limiting cavity 10 in the horizontal direction and thus touching the collision base 4, that is, in the direction of meeting the collision arm 21, the cavity wall of the limiting cavity 10 is shorter than the top surface of the collision base 4 by a certain distance.

[0071] In this embodiment, the upper and right parts of the limiting cavity 10 are both open structures, namely the upper opening 10a and the right opening 10b shown in the figure, and the collision arm 21 can enter the limiting cavity 10 from the right opening 10b of the limiting cavity 10 when it moves horizontally from right to left. The present invention accommodates the collision base 4 in the limiting cavity 10, which can provide certain protection for the collision base 4, improve the overall aesthetics, and reduce the collision height between the collision arm 21 and the collision base 4.

[0072] like Figure 5 and Figure 6As shown, in order to solve the problem that the position of the bump arm is lowered due to the sagging of the door leaf, thereby affecting the collision between the bump arm and the limit seat, the bumper of the present invention also includes a bumper seat 23 and a mounting arm 22, wherein the bumper seat 23 is used to be connected to the door leaf 3, the bumper arm 21 is connected to the mounting arm 22, and the mounting arm 22 is connected to the bumper seat 23; wherein the bumper seat 23 is provided with a third return spring 24 and a guide rod 25 arranged in the up and down directions, the bumper seat 23 is provided with an extension arm 231 extending in the horizontal direction, the extension arm 231 is provided with a screw through hole 232, the guide rod 25 includes a threaded rod body portion 251 and a rod body head portion 252, the rod body head The outer diameter of the part 252 is larger than the inner diameter of the screw through hole 232; the mounting arm 22 is provided with a threaded hole 221 adapted to the threaded rod body 251, and the threaded rod body 251 of the guide rod 25 is inserted from top to bottom through the screw through hole 232 and the third return spring 24 and then screwed into the threaded hole 221 of the mounting arm 22, and the third return spring 24 is sleeved on the guide rod 25 and located between the extension arm 231 and the mounting arm 22, so that the mounting arm 22 can move up and down relative to the bumper seat 23 when impacted by external force, and the upper and lower positions of the mounting arm 22 relative to the bumper seat 23 can be adjusted by rotating the guide rod 25. In this way, the guide rod 25 can be rotated to adjust the mounting arm 22 to move up and down relative to the bumper seat 23, thereby compensating for the offset position of the bumper arm 21. Moreover, when adjusting the height of the bumper arm 21, there is no need to remove the bumper seat 23, the bumper arm 21 and other components. It is only necessary to keep the guide rod 25 in a rotatable state. It can be seen that the adjustment is extremely convenient.

[0073] The bump seat 23 is provided with a locking through hole 233, and the bump seat 23 is fixed to the door leaf 3 by screws (not shown in the drawings) passing through the locking through hole 233. The bump seat 23 is also provided with a boss arm 234 extending in the horizontal direction. The extension arm 231 and the boss arm 234 are arranged on the same side of the bump seat 23 in the up-down direction, and there is a space between the extension arm 231 and the boss arm 234 for the installation arm 22 to move up and down. In order to prevent the bump arm 22 from swinging during the collision with the collision base 4, the present invention provides a vertical guide bar 222 on the installation arm 22, and the boss arm 234 is provided with a bump arm guide groove 235 matched with the vertical guide bar 222. The bump arm guide groove 235 can limit the horizontal position of the vertical guide bar 222, thereby preventing the bump arm 21 from swinging.

[0074] like Figure 7As shown, it also includes a cover body 8, which is arranged outside the bumper 2. The cover body 8 can prevent dust and improve the aesthetics of the structure. In addition, the cover body 8 can limit the guide rod 25 to prevent the guide rod 25 from moving upward when it is in a working state. The cover body 8 is provided with a cover body through hole 81, and the extension arm 231 is provided with a mounting hole 236 that matches the cover body through hole 81. The cover body 8 is connected to the bumper seat 23 by screws (not shown in the drawings) passing through the cover body through hole 81 and the mounting hole 236.

Claims

1. A horizontal limit door collision device, comprising a limit seat and a collision head for contacting the limit seat in a horizontal direction; characterized in that: The limit seat comprises a seat body, a collision base, a first return spring, a buffer base and a second return spring, and the collision head comprises a collision arm for contacting the collision base and the buffer base; the collision base can be movably arranged on the seat body in the up-down direction, the first return spring is arranged on the seat body for driving the collision base to return upward, the buffer base can be movably arranged on the seat body in the left-right direction, and the second return spring is arranged on the seat body for driving the buffer base to return rightward; wherein, the collision base is used to be pushed downward by the collision arm when the collision arm moves over its head in the horizontal direction so as to avoid the collision arm, the buffer base is used to be pushed to the left by the collision arm when the collision arm moves in the left horizontal direction and provide reverse buffering to the collision arm in the process of being pushed to the left, and the buffer base is also used to cooperate with the collision base to limit the collision arm from moving arbitrarily after at least part of the collision arm moves over the head of the collision base in the horizontal direction; The bumper also includes a bumper seat and a mounting arm, the bumper seat is used to be connected to the door leaf, the bumper arm is connected to the mounting arm, and the mounting arm is connected to the bumper seat; wherein, the bumper seat is provided with a third return spring and a guide rod arranged in the up and down directions, the bumper seat is provided with an extension arm extending in the horizontal direction, the extension arm is provided with a screw through hole, the guide rod includes a threaded rod body and a rod body head, the outer diameter of the rod body head is larger than the inner diameter of the screw through hole; the mounting arm is provided with a threaded hole adapted to the threaded rod body, the threaded rod body of the guide rod passes through the screw through hole and the third return spring in a manner of being inserted from top to bottom, and then is screwed into the threaded hole of the mounting arm, the third return spring is sleeved on the guide rod and is located between the extension arm and the mounting arm, so that the mounting arm can move up and down relative to the bumper seat when impacted by external force, and the upper and lower positions of the mounting arm relative to the bumper seat can be adjusted by rotating the guide rod.

2. The horizontal limit door collision according to claim 1 is characterized in that: When the buffer matrix is ​​in a free state, the right end portion thereof can extend to contact the collision matrix, or can extend above the collision matrix.

3. The horizontal limit door collision according to claim 1 is characterized in that: The limiting seat further comprises a limiting structure, and the limiting structure is used to limit the travel of the buffer base body moving to the left or to the right.

4. The horizontal limit door collision according to claim 3 is characterized in that: The limiting structure includes a limiting arm arranged on the seat body, and also includes a first upright arm arranged at the left end of the buffer base. The first upright arm is located on the left side of the limiting arm. When the buffer base moves to the right, the limiting arm is used to limit the travel of the first upright arm to the right, thereby limiting the travel of the buffer base to the right.

5. The horizontal limit door collision according to claim 4 is characterized in that: The second return spring is horizontally arranged on the left side of the first erecting arm and is used to apply a rightward driving force to the first erecting arm.

6. The horizontal limit door collision according to claim 3 is characterized in that: The limiting structure includes a limiting arm arranged on the seat body, and also includes a second upright arm arranged at the right end of the buffer base, the second upright arm is located on the right side of the limiting arm, and when the buffer base moves to the left, the limiting arm is used to limit the travel of the second upright arm to the left, thereby limiting the travel of the buffer base to the left.

7. The horizontal limit door collision according to claim 4, 5 or 6, characterized in that: The seat body includes a main seat portion and a cover shell covering the main seat portion, the main seat portion is provided with a first limit arm extending upward, the cover shell is provided with a second limit arm extending downward, the first limit arm and the second limit arm together constitute the limit arm, and the buffer base is arranged between the first limit arm and the second limit arm.

8. The horizontal limit door according to any one of claims 1 to 6, characterized in that: An open limiting cavity is arranged on the right side of the seat body, the collision base is arranged in the limiting cavity, and the cavity wall of the limiting cavity does not prevent the lower end of the collision arm from entering the limiting cavity in a horizontal direction and thus touching the collision base.

9. The horizontal limit door according to any one of claims 1 to 6, characterized in that: A pair of horizontal guide grooves are arranged on the seat body, and buffer guide parts are arranged at the front and rear ends of the buffer base body. The buffer guide parts are arranged in the horizontal guide grooves and can translate along the horizontal guide grooves.

10. The horizontal limit door according to any one of claims 1 to 6, characterized in that: A pair of vertical guide grooves are arranged on the seat body, and collision guide parts are arranged at the front and rear ends of the collision base. The collision guide parts are arranged in the vertical guide grooves and can be lifted and lowered along the vertical guide grooves.

Images