Adjustable top support

Abstract

The present invention relates to the field of construction engineering technology, and in particular to an adjustable jacking support, which includes a threaded support rod, a sliding disk and a support surface, wherein the sliding disk is sleeved on the threaded support rod through a threaded connection, and also includes an automatic clamping structure, wherein the automatic clamping structure is arranged on the threaded support rod, and the support surface is arranged on the automatic clamping structure. When in use, the automatic clamping structure will automatically clamp a small beam placed on the support surface, significantly reducing the possibility of movement of the small beam and reducing the possibility of eccentric force on the small beam. In addition, the adjustable jacking support of the present invention is shaped as an axisymmetric structure, and the small beam is placed in the middle of the support surface, so that the small beam is clamped in the center, thereby ensuring the stability and safety of the entire adjustable jacking support.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to an adjustable jacking support. Background Art

[0002] In construction projects, it is often necessary to use adjustable top supports, which can also be called upper supports. Adjustable top supports mainly play a supporting role. The adjustable top supports include threaded support rods, sliding plates and support surfaces. The sliding plates are threadedly connected and sleeved on the threaded support rods. At present, due to the fixed size of the support surface, when supporting steel pipes or beams smaller than the width of the support surface, the beams are often not clamped, and the beams move, resulting in eccentric force, causing the support surface to bend downward and deform, affecting the use of the adjustable top supports. Summary of the invention

[0003] The technical problem solved by the invention is to provide an adjustable jacking support with an automatic clamping function.

[0004] The technical solution adopted by the present invention to solve its technical problem is: an adjustable top support, including a threaded support rod, a sliding plate and a bracket surface, the sliding plate is sleeved on the threaded support rod through a threaded connection, and also includes an automatic clamping structure, the automatic clamping structure is arranged on the threaded support rod, and the bracket surface is arranged on the automatic clamping structure.

[0005] Furthermore, a vertical installation cavity is provided in the middle and upper part of the threaded support rod, and the automatic clamping structure includes a movable vertical support plate, a left clamping plate, a right clamping plate, a transmission assembly and an elastic member;

[0006] The bracket surface is arranged on the movable vertical support plate, the movable vertical support plate is matched and arranged in the vertical installation cavity, and the movable vertical support plate can move up and down in the vertical installation cavity, the upper end of the elastic member is connected to the bottom of the movable vertical support plate, and the lower end of the elastic member is connected to the bottom surface of the vertical installation cavity;

[0007] The left clamping plate includes a left vertical clamping body and a left horizontal clamping body vertically connected together, and the right clamping plate includes a right vertical clamping body and a right horizontal clamping body vertically connected together. A first horizontal through hole and a second horizontal through hole are arranged in the upper middle part of the threaded support rod. The first horizontal through hole and the second horizontal through hole penetrate the vertical installation cavity. The left horizontal clamping body is arranged in the first horizontal through hole, and the right horizontal clamping body is arranged in the second horizontal through hole. Under the action of the transmission assembly, the left horizontal clamping body can move left and right in the first horizontal through hole, and the right horizontal clamping body can move left and right in the second horizontal through hole.

[0008] A left guide groove and a right guide groove are arranged on the bracket surface, the left vertical clamp is arranged in the left guide groove, and the left vertical clamp can move left and right in the left guide groove, and the right vertical clamp can move left and right in the right guide groove;

[0009] Under the action of the transmission assembly, when the movable vertical support plate moves downward, the left vertical clamp body and the right vertical clamp body move toward each other; when the movable vertical support plate moves upward, the left vertical clamp body and the right vertical clamp body move toward each other.

[0010] Furthermore, a mounting hole is provided in the middle of the movable vertical support plate, and the transmission assembly includes a transmission gear, a left horizontal rack, a right horizontal rack and a vertical rack, the left horizontal rack is horizontally arranged on the left horizontal clamping body, the right horizontal rack is horizontally arranged on the right horizontal clamping body, and the vertical rack is vertically arranged on the side wall of the mounting hole;

[0011] The transmission gear is rotatably arranged in the vertical installation cavity through a rotating shaft, and the transmission gear is meshed and connected with the left horizontal rack, the right horizontal rack and the vertical rack.

[0012] Furthermore, limiting guide plates are respectively arranged on the left and right sides of the movable vertical support plate, vertical guide grooves are respectively arranged on the left and right side walls of the vertical installation cavity, the limiting guide plates are matched and arranged in the vertical guide grooves, and the limiting guide plates can move up and down in the vertical guide grooves.

[0013] Furthermore, the elastic member is a spring.

[0014] Furthermore, the number of the first horizontal via holes is two, the number of the left transverse clamping bodies is two, and one left transverse clamping body is arranged in one first horizontal via hole.

[0015] Furthermore, the number of the second horizontal via holes is two, the number of the right transverse clip bodies is two, and one right transverse clip body is disposed in one second horizontal via hole.

[0016] Furthermore, the adjustable support is in an axisymmetric structure.

[0017] The beneficial effects of the present invention are as follows: by providing an automatic clamping structure, the automatic clamping structure is arranged on the threaded support rod, and the support surface is arranged on the automatic clamping structure. When in use, the automatic clamping structure will automatically clamp the small beam placed on the support surface, significantly reducing the possibility of the small beam moving and reducing the possibility of the small beam being subjected to eccentric force. In addition, the adjustable top support of the present invention is an axisymmetric structure, and the small beam is placed in the middle of the support surface, which just clamps the small beam in the center, thereby ensuring the stability and safety of the entire adjustable top support. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the top view of the bracket surface;

[0020] Figure 3 It is a schematic diagram of the main structure of the left splint;

[0021] Figure 4 It is a schematic diagram of the main structure of the right splint;

[0022] Marked as: threaded support rod 1, sliding plate 2, bracket surface 3, left guide groove 31, right guide groove 32, automatic clamping structure 4, movable vertical support plate 41, mounting hole 411, left clamping plate 42, left vertical clamping body 421, left horizontal clamping body 422, right clamping plate 43, right vertical clamping body 431, right horizontal clamping body 432, elastic member 44, transmission gear 45, left horizontal rack 46, right horizontal rack 47, vertical rack 48, limiting guide plate 49. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] The following refers to the location Figure 1 The position of each component in the figure is taken as the reference.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the adjustable jacking support of the present invention comprises a threaded support rod 1, a sliding plate 2 and a bracket surface 3, wherein the sliding plate 2 is sleeved on the threaded support rod 1 through a threaded connection, and further comprises an automatic clamping structure 4, wherein the automatic clamping structure 4 is arranged on the threaded support rod 1, and the bracket surface 3 is arranged on the automatic clamping structure 4.

[0026] The function of the automatic clamping structure 4 is to automatically clamp the small beam when the small beam is placed on the support surface 3. In order to facilitate use and ensure the use effect of the automatic clamping structure 4, a preferred structure of the automatic clamping structure 4 of the present invention is: Figure 1 , Figure 2 As shown, a vertical installation cavity is provided in the middle and upper part of the threaded support rod 1, that is, the middle and upper part of the threaded support rod 1 is a hollow structure, and the automatic clamping structure 4 includes a movable vertical support plate 41, a left clamping plate 42, a right clamping plate 43, a transmission assembly and an elastic member 44;

[0027] The bracket surface 3 is arranged on the movable vertical support plate 41, the movable vertical support plate 41 is matched and arranged in the vertical installation cavity, and the movable vertical support plate 41 can move up and down in the vertical installation cavity, the upper end of the elastic member 44 is connected to the bottom of the movable vertical support plate 41, and the lower end of the elastic member 44 is connected to the bottom surface of the vertical installation cavity;

[0028] The left clamping plate 42 includes a left vertical clamping body 421 and a left horizontal clamping body 422 connected vertically together, and the right clamping plate 43 includes a right vertical clamping body 431 and a right horizontal clamping body 432 connected vertically together. The threaded support rod 1 is provided with a first horizontal through hole and a second horizontal through hole in the upper middle part. The first horizontal through hole and the second horizontal through hole penetrate the vertical installation cavity. The left horizontal clamping body 422 is arranged in the first horizontal through hole, and the right horizontal clamping body 432 is arranged in the second horizontal through hole. Under the action of the transmission assembly, the left horizontal clamping body 422 can move left and right in the first horizontal through hole, and the right horizontal clamping body 432 can move left and right in the second horizontal through hole.

[0029] The bracket surface 3 is provided with a left guide groove 31 and a right guide groove 32. The left vertical clamp 421 is provided in the left guide groove 31, and the left vertical clamp 421 can move left and right in the left guide groove 31, and the right vertical clamp 431 can move left and right in the right guide groove 32;

[0030] Under the action of the transmission assembly, when the movable vertical support plate 41 moves downward, the left vertical clamp 421 and the right vertical clamp 431 move toward each other, that is, the left vertical clamp 421 moves to the right, and the right vertical clamp 431 moves to the left; when the movable vertical support plate 41 moves upward, the left vertical clamp 421 and the right vertical clamp 431 move toward each other, that is, the left vertical clamp 421 moves to the left, and the right vertical clamp 431 moves to the right.

[0031] The use process of the adjustable top support is as follows: After the adjustable top support is prepared, first set up the lower support, and put the threaded support rod 1 into the steel pipe of the lower support, then set up the upper small beam, and put the small beam on the support surface 3. Under the action of gravity, the small beam moves the movable vertical support plate 41 downward, the elastic member 44 is compressed downward, and the left vertical clamp 421 and the right vertical clamp 431 move toward each other, thereby clamping the small beam, and finally rotate the sliding plate 2 to move the entire adjustable top support up or down, so that the top of the small beam reaches the required elevation. When the upper structure is completed, after the upper small beam of the adjustable top support is removed, the movable vertical support plate 41 moves upward under the action of the rebound force of the elastic member 44, so that the adjustable top support returns to its initial state, thereby achieving repeated use.

[0032] The function of the transmission assembly is to enable the movable vertical support plate 41 to move downward under the action of the gravity of the lower beam, and the left vertical clamp 421 and the right vertical clamp 431 to move toward each other; when the gravity of the lower beam disappears, the movable vertical support plate 41 can move upward, and the left vertical clamp 421 and the right vertical clamp 431 can move toward each other. In order to ensure the stability of the transmission assembly, the preferred structure of the transmission assembly of the present invention is: Figure 1As shown, a mounting hole 411 is provided in the middle of the movable vertical support plate 41, and a transmission assembly includes a transmission gear 45, a left horizontal rack 46, a right horizontal rack 47 and a vertical rack 48. The left horizontal rack 46 is horizontally arranged on the left horizontal clamp 422, the right horizontal rack 47 is horizontally arranged on the right horizontal clamp 432, and the vertical rack 48 is vertically arranged on the right side wall of the mounting hole 411. The transmission gear 45 is rotatably arranged in the vertical mounting cavity through a rotating shaft, and is also located in the mounting hole 411, and the transmission gear 45 is meshed and connected with the left horizontal rack 46, the right horizontal rack 47 and the vertical rack 48. The working principle of the transmission assembly is as follows: under the gravity of the lower beam, the movable vertical support plate 41 moves downward, driving the vertical rack 48 to move downward, the vertical rack 48 moves downward, driving the transmission gear 45 to rotate, the transmission gear 45 rotates and drives the left horizontal rack 46 and the right horizontal rack 47 to move, the left horizontal rack 46 and the right horizontal rack 47 move to make the left vertical clamp 421 and the right vertical clamp 431 move toward each other. After the gravity of the lower beam disappears, under the action of the rebound force of the elastic member 44, the movable vertical support plate 41 moves upward, driving the vertical rack 48 to move upward, the vertical rack 48 moves upward, driving the transmission gear 45 to rotate, the transmission gear 45 rotates and drives the left horizontal rack 46 and the right horizontal rack 47 to move, the left horizontal rack 46 and the right horizontal rack 47 move to make the left vertical clamp 421 and the right vertical clamp 431 move toward each other.

[0033] In order to improve the stability of the up and down movement of the movable vertical support plate 41 and ensure the use effect of the adjustable top support, limiting guide plates 49 are respectively arranged on the left and right sides of the movable vertical support plate 41, and vertical guide grooves are respectively arranged on the left and right side walls of the vertical mounting cavity. The limiting guide plate 49 is matched and arranged in the vertical guide groove, and the limiting guide plate 49 can move up and down in the vertical guide groove.

[0034] In order to ensure the use effect of the elastic member 44, the elastic member 44 is preferably a spring.

[0035] In order to improve the movement stability of the left clamping plate 42 and the right clamping plate 43, there are two first horizontal through holes, two left transverse clamping bodies 422, and one left transverse clamping body 422 is arranged in one first horizontal through hole. There are two second horizontal through holes, two right transverse clamping bodies 432, and one right transverse clamping body 432 is arranged in one second horizontal through hole.

[0036] In order to prevent the occurrence of eccentric force on the small beam, the small beam should always be centered in the middle of the top of the entire adjustable top support (bracket surface 3). Figure 1As shown, the adjustable top support of the present invention is an axisymmetric structure, and the axis of symmetry of the axisymmetric structure is the vertical center line of the threaded support rod 1. When the adjustable top support is used, the small beam is placed in the middle of the bracket surface 3, and the left vertical clamp body 421 and the right vertical clamp body 431 move in the direction of approaching each other by the same distance, just clamping the small beam in the center, thereby ensuring the stability and safety of the entire adjustable top support.

Claims

1. An adjustable jacking support, comprising a threaded support rod (1), a sliding plate (2) and a support surface (3), wherein the sliding plate (2) is sleeved on the threaded support rod (1) through a threaded connection, and wherein: It also includes an automatic clamping structure (4), the automatic clamping structure (4) being arranged on the threaded support rod (1), and the support surface (3) being arranged on the automatic clamping structure (4); A vertical installation cavity is provided in the middle and upper part of the threaded support rod (1), and the automatic clamping structure (4) comprises a movable vertical support plate (41), a left clamping plate (42), a right clamping plate (43), a transmission assembly and an elastic member (44); The support surface (3) is arranged on a movable vertical support plate (41), the movable vertical support plate (41) is matched and arranged in the vertical installation cavity, and the movable vertical support plate (41) can move up and down in the vertical installation cavity, the upper end of the elastic member (44) is connected to the bottom of the movable vertical support plate (41), and the lower end of the elastic member (44) is connected to the bottom surface of the vertical installation cavity; The left clamping plate (42) comprises a left vertical clamping body (421) and a left horizontal clamping body (422) vertically connected together, and the right clamping plate (43) comprises a right vertical clamping body (431) and a right horizontal clamping body (432) vertically connected together. A first horizontal through hole and a second horizontal through hole are arranged in the middle and upper part of the threaded support rod (1). The first horizontal through hole and the second horizontal through hole are arranged through the vertical installation cavity. The left horizontal clamping body (422) is arranged in the first horizontal through hole, and the right horizontal clamping body (432) is arranged in the second horizontal through hole. Under the action of the transmission assembly, the left horizontal clamping body (422) can move left and right in the first horizontal through hole, and the right horizontal clamping body (432) can move left and right in the second horizontal through hole. A left guide groove (31) and a right guide groove (32) are provided on the bracket surface (3); the left vertical clamping body (421) is provided in the left guide groove (31), and the left vertical clamping body (421) can move left and right in the left guide groove (31); and the right vertical clamping body (431) can move left and right in the right guide groove (32); Under the action of the transmission assembly, when the movable vertical support plate (41) moves downward, the left vertical clamping body (421) and the right vertical clamping body (431) move towards each other; when the movable vertical support plate (41) moves upward, the left vertical clamping body (421) and the right vertical clamping body (431) move towards each other; A mounting hole (411) is provided in the middle of the movable vertical support plate (41), and the transmission assembly comprises a transmission gear (45), a left horizontal rack (46), a right horizontal rack (47) and a vertical rack (48), the left horizontal rack (46) being horizontally arranged on the left horizontal clamping body (422), the right horizontal rack (47) being horizontally arranged on the right horizontal clamping body (432), and the vertical rack (48) being vertically arranged on the side wall of the mounting hole (411); The transmission gear (45) is rotatably arranged in the vertical installation cavity via a rotating shaft, and the transmission gear (45) is meshedly connected with the left horizontal rack (46), the right horizontal rack (47) and the vertical rack (48).

2. The adjustable top support according to claim 1, characterized in that: Limiting guide plates (49) are respectively arranged on the left and right sides of the movable vertical support plate (41), and vertical guide grooves are respectively arranged on the left and right side walls of the vertical installation cavity. The limiting guide plates (49) are matched and arranged in the vertical guide grooves, and the limiting guide plates (49) can move up and down in the vertical guide grooves.

3. The adjustable top support according to claim 1, characterized in that: The elastic member (44) is a spring.

4. The adjustable support as claimed in claim 1, characterized in that: The number of the first horizontal through holes is two, the number of the left transverse clamping bodies (422) is two, and one left transverse clamping body (422) is arranged in one first horizontal through hole.

5. The adjustable support as claimed in claim 1, characterized in that: The number of the second horizontal through holes is two, the number of the right transverse clamping bodies (432) is two, and one right transverse clamping body (432) is arranged in one second horizontal through hole.

6. The adjustable jacking support according to any one of claims 1 to 5, characterized in that: The adjustable supporting structure is an axisymmetric structure.

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