Weight box

Abstract

The utility model discloses a weight box which mainly comprises a box body, a top plate, a bottom plate, a connecting base and a plurality of balancing weights. The top plate is arranged at the top of the box body and is fixedly connected with the box body; the bottom plate is arranged at the bottom of the box body and is fixedly connected with the box body; the connecting seat is arranged on the top plate and is fixedly connected with the top plate; the plurality of balancing weights are placed in the box body; and the box body is connected with the chain through the connecting seat. When counterweight is needed, a proper number of counterweight blocks are selected to be placed in the box body through the groove. During maintenance and overhaul, the number and the weight of the counterweight blocks in the box body can be increased or decreased according to actual conditions, so that the balance between the counterweight box and the movable window sash can be leveled again. When other counterweight devices (such as air pressure rods and springs) are added, the balance among the counterweight box, the other counterweight devices and the movable window sash can be leveled again only by calculating the number and the weight of the counterweight blocks in the box body again. The device also has the advantages of simple structure, convenience in operation and easiness in implementation.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting windows, in particular to a counterweight box used for lifting windows. Background Art

[0002] At present, most lifting windows are equipped with a counterweight or a counterweight rod. The counterweight can balance the weight of the movable window sash, so that the motor can open and close the lifting window by only overcoming the friction between the counterweight and the movable window sash, thereby reducing the load on the motor.

[0003] The weight of the existing counterweight is determined according to the weight of the movable window sash, and once set, it cannot be changed. However, after the lifting window has been used for a long time, the balance between the counterweight and the movable window sash will become unbalanced due to factors such as aging of components, interference, and increased friction. The unbalanced motor needs to overcome the friction of the counterweight and the movable window sash on the one hand, and the weight difference between the two on the other hand. In this case, the motor is easily overloaded, which will eventually damage the motor, causing the lifting window to become stuck or jammed.

[0004] Therefore, the existing technology needs to be further improved and perfected. Summary of the invention

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a counterweight box for lifting windows.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A counterweight box mainly includes a box body, a top plate, a bottom plate, a connecting seat, and a plurality of counterweight blocks. The top plate is arranged on the top of the box body and is fixedly connected to the box body. The bottom plate is arranged on the bottom of the box body and is fixedly connected to the box body. The connecting seat is arranged on the top plate and is fixedly connected to the top plate. A plurality of counterweight blocks are placed in the box body. The box body is connected to a chain through the connecting seat.

[0008] As a preferred solution of the utility model, the box body adopts a long square tubular structure with openings at both ends, and one side surface of the box body is provided with a slot for adding or removing counterweights.

[0009] Specifically, the connecting seat mainly includes a connecting plate, a connecting platform, and a first connecting hole. The connecting plate is arranged on the top plate and fixedly connected to the top plate. The connecting platform is arranged on the connecting plate and fixedly connected to the connecting plate. The first connecting hole is arranged on the connecting platform and connected to the movable window sash through a chain.

[0010] Furthermore, the connection seat also includes a second connection hole. The second connection hole is located above the first connection hole and is connected to the chain.

[0011] Furthermore, the connection base also includes a reinforcing platform, which is arranged on the connection plate and fixedly connected to the connection platform and the connection plate respectively.

[0012] Furthermore, a groove is provided on the side of the box body, and the groove extends from one end of the box body to the other end.

[0013] Furthermore, the counterweight box also includes a pulley, which is installed on the side or in the groove of the box body.

[0014] As a preferred solution of the present utility model, the cross section of the groove is a limiting structure with a narrow groove opening and a wide groove bottom.

[0015] As a preferred solution of the utility model, the connecting seat is also arranged at the bottom of the counterweight box and fixedly connected to the bottom plate. The connecting seat is used to expand and connect other counterweight devices.

[0016] As a preferred solution of the utility model, the left and right sides of the slot are provided with discontinuous openings from bottom to top for placing the counterweight block into the box. The width of the opening is greater than the width of the slot. When placing the counterweight block, the counterweight block can be squared and inserted into the box from the opening, and then lowered to the bottom of the box to complete the operation of placing the counterweight block. If the counterweight block is to be taken out from the box, the opposite operation can be performed.

[0017] As a preferred solution of the present invention, the first connection hole and the second connection hole are oriented in the same direction.

[0018] The working process and principle of the utility model are as follows: when in use, the number of counterweight blocks to be placed is calculated according to the weight of the movable window sash. Each counterweight block can be manufactured into a standard step unit weight (such as 1 jin, 5 jin, 10 jin, 30 jin, 50 jin, 80 jin, and 100 jin) according to actual conditions. When counterweight is needed, select a suitable number of counterweight blocks and put them into the box through the groove. During maintenance and overhaul, the number and weight of the counterweight blocks in the box can be increased or decreased according to actual conditions to re-balance the balance between the counterweight box and the movable window sash. When other counterweight devices (such as pneumatic rods and springs) are added, it is only necessary to calculate the number and weight of the counterweight blocks in the box again to re-balance the balance between the counterweight box, other counterweight devices, and the movable window sash. The utility model also has the advantages of simple structure, convenient operation, and easy implementation.

[0019] Compared with the prior art, the utility model also has the following advantages:

[0020] The counterweight box provided by the utility model adopts a reinforced connecting seat design, so that the connection between the chain and the counterweight box is more stable and reliable.

[0021] The counterweight box provided by the utility model adopts a double connection hole structure. When in use, any one connection hole can be selected to be connected with the chain, or both of the double connection holes can be connected with the chain, thereby improving the connection strength and reliability.

[0022] The counterweight box provided by the utility model adopts a slotted box design, and the counterweight blocks in the box can be added or removed without opening the box. The operation steps are simple, convenient and fast, and the waiting time for counterweighting or maintenance is effectively saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the counterweight box provided by the utility model.

[0024] Figure 2 It is a front view of the counterweight box provided by the utility model.

[0025] Figure 3 It is a structural schematic diagram of a connecting seat located on the top of a counterweight box provided by the utility model.

[0026] Figure 4 It is a top view of the box provided by the utility model.

[0027] Figure 5 It is a structural schematic diagram of a connecting seat provided by the utility model and located at the bottom of a counterweight box.

[0028] Figure 6 It is a three-dimensional diagram of the counterweight box provided by the utility model.

[0029] Figure 7 It is an axonometric diagram of the counterweight box provided by the utility model.

[0030] Description of the reference numerals in the above drawings:

[0031] 1-box body, 2-top plate, 3-bottom plate, 4-connecting seat, 5-slot, 6-connecting plate, 7-connecting platform, 8-first connecting hole, 9-second connecting hole, 10-reinforcement platform, 11-groove. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model clearer and more specific, the utility model is further described below with reference to the accompanying drawings and embodiments.

[0033] Embodiment 1:

[0034] like Figures 1 to 7As shown, this embodiment discloses a counterweight box, which mainly includes a box body 1, a top plate 2, a bottom plate 3, a connecting seat 4, and a plurality of counterweight blocks. The top plate 2 is arranged on the top of the box body 1 and is fixedly connected to the box body 1. The bottom plate 3 is arranged on the bottom of the box body 1 and is fixedly connected to the box body 1. The connecting seat 4 is arranged on the top plate 2 and is fixedly connected to the top plate 2. A plurality of the counterweight blocks are placed in the box body 1. The box body 1 is connected to a chain through the connecting seat 4.

[0035] As a preferred solution of the utility model, the box body 1 adopts a long square tubular structure with openings at both ends. One side surface of the box body 1 is provided with a slot 5 for adding or removing a counterweight.

[0036] Specifically, the connecting seat 4 mainly includes a connecting plate 6, a connecting platform 7, and a first connecting hole 8. The connecting plate 6 is arranged on the top plate 2 and fixedly connected to the top plate 2. The connecting platform 7 is arranged on the connecting plate 6 and fixedly connected to the connecting plate 6. The first connecting hole 8 is arranged on the connecting platform 7 and connected to the movable window sash through a chain.

[0037] Furthermore, the connection seat 4 further comprises a second connection hole 9. The second connection hole 9 is located above the first connection hole 8 and is connected to the chain.

[0038] Furthermore, the connection base 4 further includes a reinforcing platform 10. The reinforcing platform 10 is disposed on the connection plate 6 and is fixedly connected to the connection platform 7 and the connection plate 6 respectively.

[0039] Furthermore, a groove 11 is provided on the side of the box body 1. The groove 11 extends from one end of the box body 1 to the other end.

[0040] Furthermore, the counterweight box further comprises a pulley which is installed on the side of the box body 1 or in the groove 11 .

[0041] As a preferred solution of the present utility model, the cross section of the groove 11 is a limiting structure with a narrow groove opening and a wide groove bottom.

[0042] As a preferred solution of the utility model, the connecting seat 4 is also arranged at the bottom of the counterweight box and fixedly connected to the bottom plate 3. The connecting seat 4 is used to expand and connect other counterweight devices.

[0043] As a preferred solution of the utility model, the left and right sides of the slot 5 are provided with discontinuous openings from bottom to top for facilitating the placement of the counterweight block into the box body 1. The width of the opening is greater than the width of the slot 5. When placing the counterweight block, the counterweight block can be squared and inserted into the box body 1 from the opening, and then lowered to the bottom of the box body 1 to complete the operation of placing the counterweight block. If the counterweight block is to be taken out from the box body 1, the reverse operation can be performed.

[0044] As a preferred solution of the present invention, the first connection hole 8 and the second connection hole 9 are oriented in the same direction.

[0045] The working process and principle of the utility model are as follows: when in use, the number of counterweight blocks to be placed is calculated according to the weight of the movable window sash. Each counterweight block can be manufactured into a standard step unit weight (such as 1 jin, 5 jin, 10 jin, 30 jin, 50 jin, 80 jin, and 100 jin) according to actual conditions. When counterweight is needed, select a suitable number of counterweight blocks and put them into the box body 1 through the groove 11. During maintenance and overhaul, the number and weight of the counterweight blocks in the box body 1 can be increased or decreased according to actual conditions to re-balance the balance between the counterweight box and the movable window sash. When other counterweight devices (such as pneumatic rods and springs) are added, it is only necessary to calculate the number and weight of the counterweight blocks in the box body 1 again to re-balance the balance between the counterweight box, other counterweight devices, and the movable window sash. The utility model also has the advantages of simple structure, convenient operation, and easy implementation.

[0046] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A counterweight box, characterized in that: It includes a box body, a top plate, a bottom plate, a connecting seat, and a plurality of counterweights; the top plate is arranged on the top of the box body and is fixedly connected to the box body; the bottom plate is arranged on the bottom of the box body and is fixedly connected to the box body; the connecting seat is arranged on the top plate and is fixedly connected to the top plate; a plurality of the counterweights are placed in the box body; the box body is connected to a chain through the connecting seat.

2. The counterweight box according to claim 1, characterized in that: The box body adopts a long square tubular structure with openings at both ends. One side surface of the box body is provided with a slot for adding or removing a counterweight block.

3. The counterweight box according to claim 1, characterized in that: The connecting seat includes a connecting plate, a connecting platform, and a first connecting hole; the connecting plate is arranged on the top plate and fixedly connected to the top plate; the connecting platform is arranged on the connecting plate and fixedly connected to the connecting plate; the first connecting hole is arranged on the connecting platform and connected to the movable window sash through a chain.

4. The counterweight box according to claim 3, characterized in that: The connecting seat also includes a second connecting hole; the second connecting hole is located above the first connecting hole and is connected to the chain.

5. The counterweight box according to claim 3, characterized in that: The connecting seat also includes a reinforcing platform; the reinforcing platform is arranged on the connecting plate and is fixedly connected to the connecting platform and the connecting plate respectively.

6. The counterweight box according to claim 1, characterized in that: A groove is also provided on the side of the box body; the groove extends from one end of the box body to the other end.

7. The counterweight box according to claim 6, characterized in that: The counterweight box also includes a pulley; the pulley is installed on the side surface or in the groove of the box body.

8. The weight box according to claim 6, characterized in that: The cross section of the groove is a limiting structure with a narrow groove opening and a wide groove bottom.

9. The counterweight box according to claim 1, characterized in that: The connecting seat is also arranged at the bottom of the counterweight box and is fixedly connected to the bottom plate. The connecting seat is used for expanding and connecting other counterweight devices.

10. The counterweight box according to claim 2, characterized in that: Discontinuous openings are provided from bottom to top on the left and right sides of the slot for facilitating the placement of the counterweight into the box; the width of the opening is greater than the width of the slot.

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