Air bag assembly internally provided with limiting and supporting mechanism, high-frequency breaking hammer and construction trolley

Abstract

The utility model relates to the field of high-frequency breaking hammers, in particular to an air bag assembly internally provided with a limiting supporting mechanism, a high-frequency breaking hammer with the air bag assembly and a construction trolley with the high-frequency breaking hammer. The first connecting base and the second connecting base are connected to openings in the two ends of the air bag body in a sealed mode respectively. The air bag further comprises a limiting supporting mechanism arranged in the air bag body. The limiting supporting mechanism is connected with the first connecting seat; when the whole air bag assembly is extruded to enable the first connecting seat and the second connecting seat to move in opposite directions, the limiting and supporting mechanism is used for limiting and supporting the minimum distance between the first connecting seat and the second connecting seat; therefore, the first connecting seat and the second connecting seat are prevented from being too close to each other during opposite movement to cause pressure explosion of the airbag body, and failure of the whole airbag assembly is prevented.

Description

Technical Field

[0001] The utility model relates to the field of high-frequency breaker hammers, in particular to an air bag component with a limit support mechanism inside, and a high-frequency breaker hammer and a construction trolley with the air bag component. Background Art

[0002] In a high-frequency breaker hammer as shown in Chinese patent application CN202311807359.5, a bag-type air spring is usually used as a shock-absorbing mechanism to achieve buffering between the excitation box and the rear end of the shock-absorbing box, so as to avoid transmitting the excitation force to the boom or the vehicle body as much as possible. The bag-type air spring mainly includes two connecting seats and an airbag body sealed between the two connecting seats. Compressed air is filled into the airbag body, and the elastic action of the air is used to drive the elastic deformation of the airbag body to achieve its elastic action.

[0003] During operation, the high-frequency breaker will bring huge extrusion force to the bag-type air spring, which may cause the air bag body to burst due to excessive extrusion, causing it to lose its shock-absorbing effect. Utility Model Content

[0004] In view of this, the utility model provides an airbag assembly with a limiting support mechanism inside, and a high-frequency breaker hammer and a construction trolley having the airbag assembly, aiming to prevent the airbag therein from being crushed due to excessive pressurization.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] An airbag assembly with a limit support mechanism inside, comprising a first connecting seat, an airbag body and a second connecting seat, wherein the first connecting seat and the second connecting seat are respectively sealed and connected to the two end openings of the airbag body; further comprising a limit support mechanism arranged in the airbag body; the limit support mechanism is connected to the first connecting seat; when the airbag assembly is squeezed so that the first connecting seat and the second connecting seat move toward each other, the limit support mechanism is used to serve as a minimum distance limit support between the first connecting seat and the second connecting seat.

[0007] In some embodiments, the position-limiting support mechanism includes a support seat and an elastic member; one end of the support seat is connected to the first connecting seat, and the elastic member is sleeved on the other end of the support seat.

[0008] In some embodiments, the limiting support mechanism includes a support seat and an elastic member; one end of the support seat is connected to the first connecting seat, and the other end of the support seat has a socket; the elastic member is inserted into the socket and protrudes a portion out of the socket.

[0009] In some embodiments, the end of the support seat away from the first connecting seat has an inwardly protruding limiting portion; the elastic member has a circumferential step at a location corresponding to the limiting portion, so that the elastic member is clamped with the limiting portion of the support seat through the circumferential step.

[0010] In some embodiments, the elastic member has a cavity.

[0011] In some embodiments, the elastic member further has at least one exhaust channel connected to the cavity; and an exhaust hole is provided on the support seat at a position corresponding to the exhaust channel.

[0012] In some embodiments, a buffer plate is further included; the buffer plate is connected to a side of the first connecting seat away from the supporting seat.

[0013] In some embodiments, an air nozzle and an air pressure sensor are also included; the air nozzle and the air pressure sensor are installed on a side of the first connecting seat away from the supporting seat and are connected to the interior of the airbag body; the buffer pad has a groove for accommodating the air nozzle and the air pressure sensor.

[0014] A high-frequency breaker hammer comprises the airbag assembly as described above.

[0015] A construction trolley comprises the high-frequency breaker hammer as described above.

[0016] In summary, compared with the prior art, the utility model has the following advantages and beneficial effects: when the entire airbag assembly is squeezed so that the first connecting seat and the second connecting seat move toward each other, the limiting support mechanism is used as a minimum distance limiting support between the first connecting seat and the second connecting seat to avoid the first connecting seat and the second connecting seat moving too close to each other and crushing the airbag body, thereby preventing the entire airbag assembly from failing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model after the second connecting base is omitted.

[0019] Figure 3 It is a side view schematic diagram of the cutting mechanism of the utility model.

[0020] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of area A in the middle.

[0021] The meanings of the numbers in the figure are: buffer plate 1, first connecting seat 2, airbag body 3, second connecting seat 4, buffer member 5, limit support mechanism 6, support seat 61, exhaust hole 62, elastic member 63, exhaust channel 64, cavity 65, connecting member 66, air nozzle 7, air pressure sensor 8. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there are descriptions of the first, second and other similar terms, they are only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] like Figure 1-Figure 3 As shown, an airbag assembly with an internal limiting support mechanism described in an embodiment of the present application includes a first connecting seat 2, an airbag body 3, a second connecting seat 4 and a limiting support mechanism 6.

[0027] The airbag body 3 may be a cylindrical elastic member made of airtight rubber with openings at both ends, and the first connecting seat 2 and the second connecting seat 4 are respectively sealed and connected to the openings at both ends of the airbag body 3 .

[0028] The position limiting support mechanism 6 is disposed in the airbag body 3. When the entire airbag assembly is squeezed so that the first connection seat 2 and the second connection seat 4 move toward each other, the position limiting support mechanism 6 is used to serve as a minimum distance limit support between the first connection seat 2 and the second connection seat 4 to prevent the first connection seat 2 and the second connection seat 4 from being too close to each other when moving toward each other and crushing the airbag body 3, thereby preventing the entire airbag assembly from failing.

[0029] As an optional implementation, Figure 3 As shown, the position-limiting support mechanism 6 includes a support seat 61, one end of the support seat 61 is used as a fixed end to be connected to the first connection seat 2, and the other end of the support seat 61 is used as a movable end to be set at a certain distance from the second connection seat 4 in the initial state. Within this interval, the relative movement between the first connection seat 2 and the second connection seat 4 is not limited by the support seat 61; when the interval exceeds this interval, the first connection seat 2 and the second connection seat 4 can no longer move toward each other due to the position-limiting support of the support seat 61, thereby preventing the airbag body 3 from being crushed due to the small distance between the first connection seat 2 and the second connection seat 4.

[0030] To buffer the impact between the second connecting seat 4 and the supporting seat 61, as Figure 3 and Figure 4 As shown, the position-limiting support mechanism 6 also includes an elastic member 63, and the support seat 61 has an insertion hole, and the elastic member 63 is inserted into the insertion hole and protrudes a portion of the insertion hole. When the first connection seat 2 and the second connection seat 4 move toward each other and are about to contact the support seat 61, the second connection seat 4 will first contact the elastic member 63 protruding from the insertion hole and squeeze the elastic member 63 to deform to absorb the impact force. After the elastic member 63 is deformed to a certain extent, the second connection seat 4 will contact the support seat 61 and be supported and limited by it so that it can no longer move toward the first connection seat 2. The elastic member 63 can effectively prevent the second connection seat 4 and the support seat 61 from being damaged due to excessive impact.

[0031] Obviously, similar effects can be achieved by exchanging the positions of the support seat 61 and the elastic member 63. For example, one end of the support seat 61 is still used as a fixed end for connecting with the first connecting seat 2, while the elastic member 63 is designed as a set to be sleeved on the other end (i.e., the movable end) of the support seat 61.

[0032] As an optional implementation, Figure 3As shown, the end of the support seat 61 away from the first connection seat 2 has a radially inwardly protruding limit portion, and the elastic member 63 has a circumferential step corresponding to the limit portion, so that the elastic member 63 is engaged with the limit portion of the support seat 61 through the circumferential step. In this way, the elastic member 63 is limited and fixed by the support seat 61 and is difficult to escape from the support seat 61.

[0033] When the elastic member 63 is a solid body, since most of it is located in the support seat 61, the support seat 61 limits the range of its deformation movement when it is deformed under pressure, and it may burst and be damaged due to exceeding the pressure limit. Figure 3 As shown, a cavity 65 can also be opened in the axial direction of the elastic member 63 so that the elastic member 63 can deform inward when squeezed. In this case, the cavity 65 can accommodate the deformed part of the elastic member 63, so that the elastic member 63 is not easily damaged due to excessive deformation.

[0034] like Figure 4 As shown, at least one exhaust channel 64 connected to the cavity 65 can be opened in the radial direction of the elastic member 63, and an exhaust hole 62 is provided on the support seat 61 at a position corresponding to the exhaust channel 64, so as to discharge the high-pressure gas generated by the pressure in the cavity 65 of the elastic member 63, which can alleviate the extrusion force exerted on the elastic member 63 itself when it is deformed to a certain extent, thereby further reducing the risk of damage to the elastic member 63 due to pressure.

[0035] like Figure 3 and Figure 4 As shown, a buffer member 5, such as a rubber ring, may be further provided between the support seat 61 and the first connection seat 2 to reduce the squeezing between the support seat 61 and the first connection seat 2 after the impact. In addition, the buffer member 5 can also provide a certain elastic buffer force to the support seat 61 in turn to reduce the impact force of the second connection seat 4 on the support seat 61.

[0036] The support seat 61 and the first connecting seat 2 can be connected by fasteners such as bolts as connecting members 66 , and the connecting member 66 can also provide limiting / positioning for the buffer member 5 .

[0037] Generally speaking, the first connection seat 2 is used to connect with the rear end of the shock absorber box, and the second connection seat 4 is used to connect with the rear end of the excitation box. In order to protect the shock absorber box, a buffer plate 1 can be connected to the side of the first connection seat 2 away from the support seat 61 by, for example, bonding, etc. The buffer plate 1 can be made of elastic materials such as rubber. The buffer plate 1 can reduce the impact between the first connection seat 2 and the shock absorber box, thereby reducing the damage to the shock absorber box.

[0038] To facilitate adjusting the air pressure in the airbag body 3, the embodiment of the present application further includes an air nozzle 7. The air nozzle 7 is installed on the side of the first connecting seat 2 away from the supporting seat 61 and is connected to the inside of the airbag body 3. The air pressure in the airbag body 3 can be adjusted by the air nozzle 7.

[0039] In addition, an air pressure sensor 8 connected to the interior of the airbag body 3 may be installed on the side of the first connecting seat 2 away from the supporting seat 61 , and the air pressure in the airbag body 3 may be known through the air pressure sensor 8 .

[0040] The buffer pad 1 has a groove for accommodating the air nozzle 7 and the air pressure sensor 8 to provide certain protection for the air nozzle 7 and the air pressure sensor 8 .

[0041] On this basis, the embodiment of the present application also provides a high-frequency breaker hammer with the aforementioned airbag assembly. The high-frequency breaker hammer with the airbag assembly has a better shock absorbing effect and effectively increases its service life because the airbag will no longer be crushed.

[0042] The embodiment of the present application also provides a construction trolley with the above-mentioned high-frequency breaker hammer. The construction trolley will not affect the construction efficiency due to the need for frequent maintenance of the high-frequency breaker hammer, so the operation efficiency of the construction trolley can be improved.

[0043] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above preferred embodiments shall not be regarded as limiting the present invention, and the protection scope of the present invention shall be subject to the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications shall also be regarded as the protection scope of the present invention.

Claims

1. An airbag assembly with a limit support mechanism inside, comprising a first connection seat (2), an airbag body (3) and a second connection seat (4), wherein the first connection seat (2) and the second connection seat (4) are respectively sealed and connected to the openings at both ends of the airbag body (3); characterized in that: It also includes a limit support mechanism (6) disposed in the airbag body (3); the limit support mechanism (6) is connected to the first connecting seat (2); when the airbag assembly is squeezed so that the first connecting seat (2) and the second connecting seat (4) move toward each other, the limit support mechanism (6) is used to serve as a minimum distance limit support between the first connecting seat (2) and the second connecting seat (4).

2. An airbag assembly with an internal limiting support mechanism as claimed in claim 1, characterized in that: The position-limiting support mechanism (6) comprises a support seat (61) and an elastic member (63); one end of the support seat (61) is connected to the first connecting seat (2), and the elastic member (63) is sleeved on the other end of the support seat (61).

3. An airbag assembly with an internal limiting support mechanism as claimed in claim 1, characterized in that: The position-limiting support mechanism (6) comprises a support seat (61) and an elastic member (63); one end of the support seat (61) is connected to the first connecting seat (2), and the other end of the support seat (61) has a plug hole; the elastic member (63) is plugged into the plug hole and a portion of it protrudes out of the plug hole.

4. An airbag assembly with an internal limiting support mechanism as claimed in claim 3, characterized in that: The end of the support seat (61) away from the first connecting seat (2) has a limiting portion protruding inwardly; the elastic member (63) has a circumferential step at a location corresponding to the limiting portion, so that the elastic member (63) is engaged with the limiting portion of the support seat (61) via the circumferential step.

5. An airbag assembly with an internal limiting support mechanism as claimed in claim 3, characterized in that: The elastic member (63) has a cavity (65).

6. An airbag assembly with an internal limiting support mechanism as claimed in claim 5, characterized in that: The elastic member (63) is also provided with at least one exhaust channel (64) communicating with the cavity (65); and an exhaust hole (62) is provided on the support seat (61) at a position corresponding to the exhaust channel (64).

7. An airbag assembly with an internal limiting support mechanism as claimed in claim 3, characterized in that: It also comprises a buffer pad (1); the buffer pad (1) is connected to a side of the first connecting seat (2) away from the supporting seat (61).

8. An airbag assembly with an internal limiting support mechanism as claimed in claim 7, characterized in that: It also includes an air nozzle (7) and an air pressure sensor (8); the air nozzle (7) and the air pressure sensor (8) are installed on a side of the first connecting seat (2) away from the supporting seat (61) and are connected to the inside of the airbag body (3); the buffer pad (1) has a groove for accommodating the air nozzle (7) and the air pressure sensor (8).

9. A high frequency breaker, characterized in that: The invention comprises the airbag assembly according to any one of claims 1 to 8.

10. A construction trolley, characterized in that: Comprising the high-frequency breaker hammer as claimed in claim 9.

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